From: Luis Henriques <luis.henriques@canonical.com>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
kernel-team@lists.ubuntu.com
Cc: lwn@lwn.net
Subject: Re: [3.16.y-ckt stable] Linux 3.16.7-ckt4
Date: Thu, 15 Jan 2015 22:45:16 +0000 [thread overview]
Message-ID: <1421361916-4714-2-git-send-email-luis.henriques@canonical.com> (raw)
In-Reply-To: <1421361916-4714-1-git-send-email-luis.henriques@canonical.com>
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
index 5199b0c8cf7a..fee26dc3e858 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
@@ -14,10 +14,10 @@ Optional properties :
- i2c-sda-hold-time-ns : should contain the SDA hold time in nanoseconds.
This option is only supported in hardware blocks version 1.11a or newer.
- - i2c-scl-falling-time : should contain the SCL falling time in nanoseconds.
+ - i2c-scl-falling-time-ns : should contain the SCL falling time in nanoseconds.
This value which is by default 300ns is used to compute the tLOW period.
- - i2c-sda-falling-time : should contain the SDA falling time in nanoseconds.
+ - i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds.
This value which is by default 300ns is used to compute the tHIGH period.
Example :
diff --git a/Documentation/ramoops.txt b/Documentation/ramoops.txt
index 69b3cac4749d..5d8675615e59 100644
--- a/Documentation/ramoops.txt
+++ b/Documentation/ramoops.txt
@@ -14,11 +14,19 @@ survive after a restart.
1. Ramoops concepts
-Ramoops uses a predefined memory area to store the dump. The start and size of
-the memory area are set using two variables:
+Ramoops uses a predefined memory area to store the dump. The start and size
+and type of the memory area are set using three variables:
* "mem_address" for the start
* "mem_size" for the size. The memory size will be rounded down to a
power of two.
+ * "mem_type" to specifiy if the memory type (default is pgprot_writecombine).
+
+Typically the default value of mem_type=0 should be used as that sets the pstore
+mapping to pgprot_writecombine. Setting mem_type=1 attempts to use
+pgprot_noncached, which only works on some platforms. This is because pstore
+depends on atomic operations. At least on ARM, pgprot_noncached causes the
+memory to be mapped strongly ordered, and atomic operations on strongly ordered
+memory are implementation defined, and won't work on many ARMs such as omaps.
The memory area is divided into "record_size" chunks (also rounded down to
power of two) and each oops/panic writes a "record_size" chunk of
@@ -55,6 +63,7 @@ Setting the ramoops parameters can be done in 2 different manners:
static struct ramoops_platform_data ramoops_data = {
.mem_size = <...>,
.mem_address = <...>,
+ .mem_type = <...>,
.record_size = <...>,
.dump_oops = <...>,
.ecc = <...>,
diff --git a/Makefile b/Makefile
index e76553847685..f42624fd1da0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 16
SUBLEVEL = 7
-EXTRAVERSION =-ckt3
+EXTRAVERSION =-ckt4
NAME = Museum of Fishiegoodies
# *DOCUMENTATION*
diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts
index 398064cef746..4c169d825415 100644
--- a/arch/arc/boot/dts/nsimosci.dts
+++ b/arch/arc/boot/dts/nsimosci.dts
@@ -20,7 +20,7 @@
/* this is for console on PGU */
/* bootargs = "console=tty0 consoleblank=0"; */
/* this is for console on serial */
- bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
+ bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
};
aliases {
@@ -46,9 +46,9 @@
#interrupt-cells = <1>;
};
- uart0: serial@c0000000 {
+ uart0: serial@f0000000 {
compatible = "ns8250";
- reg = <0xc0000000 0x2000>;
+ reg = <0xf0000000 0x2000>;
interrupts = <11>;
clock-frequency = <3686400>;
baud = <115200>;
@@ -57,21 +57,21 @@
no-loopback-test = <1>;
};
- pgu0: pgu@c9000000 {
+ pgu0: pgu@f9000000 {
compatible = "snps,arcpgufb";
- reg = <0xc9000000 0x400>;
+ reg = <0xf9000000 0x400>;
};
- ps2: ps2@c9001000 {
+ ps2: ps2@f9001000 {
compatible = "snps,arc_ps2";
- reg = <0xc9000400 0x14>;
+ reg = <0xf9000400 0x14>;
interrupts = <13>;
interrupt-names = "arc_ps2_irq";
};
- eth0: ethernet@c0003000 {
+ eth0: ethernet@f0003000 {
compatible = "snps,oscilan";
- reg = <0xc0003000 0x44>;
+ reg = <0xf0003000 0x44>;
interrupts = <7>, <8>;
interrupt-names = "rx", "tx";
};
diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index 21b588b6f6bd..77d22d82faf5 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -106,11 +106,6 @@
reg = <0x11100 0x20>;
};
- system-controller@18200 {
- compatible = "marvell,armada-370-xp-system-controller";
- reg = <0x18200 0x100>;
- };
-
pinctrl {
compatible = "marvell,mv88f6710-pinctrl";
reg = <0x18000 0x38>;
@@ -186,6 +181,11 @@
interrupts = <91>;
};
+ system-controller@18200 {
+ compatible = "marvell,armada-370-xp-system-controller";
+ reg = <0x18200 0x100>;
+ };
+
gateclk: clock-gating-control@18220 {
compatible = "marvell,armada-370-gating-clock";
reg = <0x18220 0x4>;
diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h
index 0704e0cf5571..e72aa4d802de 100644
--- a/arch/arm/include/asm/arch_timer.h
+++ b/arch/arm/include/asm/arch_timer.h
@@ -78,6 +78,15 @@ static inline u32 arch_timer_get_cntfrq(void)
return val;
}
+static inline u64 arch_counter_get_cntpct(void)
+{
+ u64 cval;
+
+ isb();
+ asm volatile("mrrc p15, 0, %Q0, %R0, c14" : "=r" (cval));
+ return cval;
+}
+
static inline u64 arch_counter_get_cntvct(void)
{
u64 cval;
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 044b51185fcc..c31f4c00b1fc 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -361,25 +361,41 @@ static int coherency_type(void)
{
struct device_node *np;
const struct of_device_id *match;
+ int type;
- np = of_find_matching_node_and_match(NULL, of_coherency_table, &match);
- if (np) {
- int type = (int) match->data;
+ /*
+ * The coherency fabric is needed:
+ * - For coherency between processors on Armada XP, so only
+ * when SMP is enabled.
+ * - For coherency between the processor and I/O devices, but
+ * this coherency requires many pre-requisites (write
+ * allocate cache policy, shareable pages, SMP bit set) that
+ * are only meant in SMP situations.
+ *
+ * Note that this means that on Armada 370, there is currently
+ * no way to use hardware I/O coherency, because even when
+ * CONFIG_SMP is enabled, is_smp() returns false due to the
+ * Armada 370 being a single-core processor. To lift this
+ * limitation, we would have to find a way to make the cache
+ * policy set to write-allocate (on all Armada SoCs), and to
+ * set the shareable attribute in page tables (on all Armada
+ * SoCs except the Armada 370). Unfortunately, such decisions
+ * are taken very early in the kernel boot process, at a point
+ * where we don't know yet on which SoC we are running.
- /* Armada 370/XP coherency works in both UP and SMP */
- if (type == COHERENCY_FABRIC_TYPE_ARMADA_370_XP)
- return type;
+ */
+ if (!is_smp())
+ return COHERENCY_FABRIC_TYPE_NONE;
- /* Armada 375 coherency works only on SMP */
- else if (type == COHERENCY_FABRIC_TYPE_ARMADA_375 && is_smp())
- return type;
+ np = of_find_matching_node_and_match(NULL, of_coherency_table, &match);
+ if (!np)
+ return COHERENCY_FABRIC_TYPE_NONE;
- /* Armada 380 coherency works only on SMP */
- else if (type == COHERENCY_FABRIC_TYPE_ARMADA_380 && is_smp())
- return type;
- }
+ type = (int) match->data;
+
+ of_node_put(np);
- return COHERENCY_FABRIC_TYPE_NONE;
+ return type;
}
int coherency_available(void)
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index 578d4d1ad648..6448324aa9b4 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -50,6 +50,7 @@ ENTRY(tegra_resume)
THUMB( it ne )
bne cpu_resume @ no
+ tegra_get_soc_id TEGRA_APB_MISC_BASE, r6
/* Are we on Tegra20? */
cmp r6, #TEGRA20
beq 1f @ Yes
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index 9400596a0f39..6abb872b34d6 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -135,6 +135,15 @@ static inline void arch_timer_evtstrm_enable(int divider)
#endif
}
+static inline u64 arch_counter_get_cntpct(void)
+{
+ /*
+ * AArch64 kernel and user space mandate the use of CNTVCT.
+ */
+ BUG();
+ return 0;
+}
+
static inline u64 arch_counter_get_cntvct(void)
{
u64 cval;
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 024c46183c3c..0ad735166d9f 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -30,6 +30,7 @@
#define COMPAT_HWCAP_IDIVA (1 << 17)
#define COMPAT_HWCAP_IDIVT (1 << 18)
#define COMPAT_HWCAP_IDIV (COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
+#define COMPAT_HWCAP_LPAE (1 << 20)
#define COMPAT_HWCAP_EVTSTRM (1 << 21)
#define COMPAT_HWCAP2_AES (1 << 0)
diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h
index e9c149c042e0..456d67c1f0fa 100644
--- a/arch/arm64/include/asm/suspend.h
+++ b/arch/arm64/include/asm/suspend.h
@@ -21,6 +21,7 @@ struct sleep_save_sp {
phys_addr_t save_ptr_stash_phys;
};
+extern int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long));
extern void cpu_resume(void);
extern int cpu_suspend(unsigned long);
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 46d1125571f6..9e03a1485cc3 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -71,7 +71,8 @@ EXPORT_SYMBOL_GPL(elf_hwcap);
COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\
COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\
- COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV)
+ COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV|\
+ COMPAT_HWCAP_LPAE)
unsigned int compat_elf_hwcap __read_mostly = COMPAT_ELF_HWCAP_DEFAULT;
unsigned int compat_elf_hwcap2 __read_mostly;
#endif
diff --git a/arch/arm64/kernel/sleep.S b/arch/arm64/kernel/sleep.S
index b1925729c692..ede186cdd452 100644
--- a/arch/arm64/kernel/sleep.S
+++ b/arch/arm64/kernel/sleep.S
@@ -49,28 +49,39 @@
orr \dst, \dst, \mask // dst|=(aff3>>rs3)
.endm
/*
- * Save CPU state for a suspend. This saves callee registers, and allocates
- * space on the kernel stack to save the CPU specific registers + some
- * other data for resume.
+ * Save CPU state for a suspend and execute the suspend finisher.
+ * On success it will return 0 through cpu_resume - ie through a CPU
+ * soft/hard reboot from the reset vector.
+ * On failure it returns the suspend finisher return value or force
+ * -EOPNOTSUPP if the finisher erroneously returns 0 (the suspend finisher
+ * is not allowed to return, if it does this must be considered failure).
+ * It saves callee registers, and allocates space on the kernel stack
+ * to save the CPU specific registers + some other data for resume.
*
* x0 = suspend finisher argument
+ * x1 = suspend finisher function pointer
*/
-ENTRY(__cpu_suspend)
+ENTRY(__cpu_suspend_enter)
stp x29, lr, [sp, #-96]!
stp x19, x20, [sp,#16]
stp x21, x22, [sp,#32]
stp x23, x24, [sp,#48]
stp x25, x26, [sp,#64]
stp x27, x28, [sp,#80]
+ /*
+ * Stash suspend finisher and its argument in x20 and x19
+ */
+ mov x19, x0
+ mov x20, x1
mov x2, sp
sub sp, sp, #CPU_SUSPEND_SZ // allocate cpu_suspend_ctx
- mov x1, sp
+ mov x0, sp
/*
- * x1 now points to struct cpu_suspend_ctx allocated on the stack
+ * x0 now points to struct cpu_suspend_ctx allocated on the stack
*/
- str x2, [x1, #CPU_CTX_SP]
- ldr x2, =sleep_save_sp
- ldr x2, [x2, #SLEEP_SAVE_SP_VIRT]
+ str x2, [x0, #CPU_CTX_SP]
+ ldr x1, =sleep_save_sp
+ ldr x1, [x1, #SLEEP_SAVE_SP_VIRT]
#ifdef CONFIG_SMP
mrs x7, mpidr_el1
ldr x9, =mpidr_hash
@@ -82,11 +93,21 @@ ENTRY(__cpu_suspend)
ldp w3, w4, [x9, #MPIDR_HASH_SHIFTS]
ldp w5, w6, [x9, #(MPIDR_HASH_SHIFTS + 8)]
compute_mpidr_hash x8, x3, x4, x5, x6, x7, x10
- add x2, x2, x8, lsl #3
+ add x1, x1, x8, lsl #3
#endif
- bl __cpu_suspend_finisher
+ bl __cpu_suspend_save
+ /*
+ * Grab suspend finisher in x20 and its argument in x19
+ */
+ mov x0, x19
+ mov x1, x20
+ /*
+ * We are ready for power down, fire off the suspend finisher
+ * in x1, with argument in x0
+ */
+ blr x1
/*
- * Never gets here, unless suspend fails.
+ * Never gets here, unless suspend finisher fails.
* Successful cpu_suspend should return from cpu_resume, returning
* through this code path is considered an error
* If the return value is set to 0 force x0 = -EOPNOTSUPP
@@ -103,7 +124,7 @@ ENTRY(__cpu_suspend)
ldp x27, x28, [sp, #80]
ldp x29, lr, [sp], #96
ret
-ENDPROC(__cpu_suspend)
+ENDPROC(__cpu_suspend_enter)
.ltorg
/*
@@ -126,14 +147,12 @@ cpu_resume_after_mmu:
ret
ENDPROC(cpu_resume_after_mmu)
- .data
ENTRY(cpu_resume)
bl el2_setup // if in EL2 drop to EL1 cleanly
#ifdef CONFIG_SMP
mrs x1, mpidr_el1
- adr x4, mpidr_hash_ptr
- ldr x5, [x4]
- add x8, x4, x5 // x8 = struct mpidr_hash phys address
+ adrp x8, mpidr_hash
+ add x8, x8, #:lo12:mpidr_hash // x8 = struct mpidr_hash phys address
/* retrieve mpidr_hash members to compute the hash */
ldr x2, [x8, #MPIDR_HASH_MASK]
ldp w3, w4, [x8, #MPIDR_HASH_SHIFTS]
@@ -143,14 +162,15 @@ ENTRY(cpu_resume)
#else
mov x7, xzr
#endif
- adr x0, sleep_save_sp
+ adrp x0, sleep_save_sp
+ add x0, x0, #:lo12:sleep_save_sp
ldr x0, [x0, #SLEEP_SAVE_SP_PHYS]
ldr x0, [x0, x7, lsl #3]
/* load sp from context */
ldr x2, [x0, #CPU_CTX_SP]
- adr x1, sleep_idmap_phys
+ adrp x1, sleep_idmap_phys
/* load physical address of identity map page table in x1 */
- ldr x1, [x1]
+ ldr x1, [x1, #:lo12:sleep_idmap_phys]
mov sp, x2
/*
* cpu_do_resume expects x0 to contain context physical address
@@ -159,26 +179,3 @@ ENTRY(cpu_resume)
bl cpu_do_resume // PC relative jump, MMU off
b cpu_resume_mmu // Resume MMU, never returns
ENDPROC(cpu_resume)
-
- .align 3
-mpidr_hash_ptr:
- /*
- * offset of mpidr_hash symbol from current location
- * used to obtain run-time mpidr_hash address with MMU off
- */
- .quad mpidr_hash - .
-/*
- * physical address of identity mapped page tables
- */
- .type sleep_idmap_phys, #object
-ENTRY(sleep_idmap_phys)
- .quad 0
-/*
- * struct sleep_save_sp {
- * phys_addr_t *save_ptr_stash;
- * phys_addr_t save_ptr_stash_phys;
- * };
- */
- .type sleep_save_sp, #object
-ENTRY(sleep_save_sp)
- .space SLEEP_SAVE_SP_SZ // struct sleep_save_sp
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index 1fa9ce4afd8f..2d6b6065fe7f 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -5,26 +5,24 @@
#include <asm/debug-monitors.h>
#include <asm/pgtable.h>
#include <asm/memory.h>
+#include <asm/mmu_context.h>
#include <asm/smp_plat.h>
#include <asm/suspend.h>
#include <asm/tlbflush.h>
-extern int __cpu_suspend(unsigned long);
+extern int __cpu_suspend_enter(unsigned long arg, int (*fn)(unsigned long));
/*
- * This is called by __cpu_suspend() to save the state, and do whatever
+ * This is called by __cpu_suspend_enter() to save the state, and do whatever
* flushing is required to ensure that when the CPU goes to sleep we have
* the necessary data available when the caches are not searched.
*
- * @arg: Argument to pass to suspend operations
- * @ptr: CPU context virtual address
- * @save_ptr: address of the location where the context physical address
- * must be saved
+ * ptr: CPU context virtual address
+ * save_ptr: address of the location where the context physical address
+ * must be saved
*/
-int __cpu_suspend_finisher(unsigned long arg, struct cpu_suspend_ctx *ptr,
- phys_addr_t *save_ptr)
+void notrace __cpu_suspend_save(struct cpu_suspend_ctx *ptr,
+ phys_addr_t *save_ptr)
{
- int cpu = smp_processor_id();
-
*save_ptr = virt_to_phys(ptr);
cpu_do_suspend(ptr);
@@ -35,8 +33,6 @@ int __cpu_suspend_finisher(unsigned long arg, struct cpu_suspend_ctx *ptr,
*/
__flush_dcache_area(ptr, sizeof(*ptr));
__flush_dcache_area(save_ptr, sizeof(*save_ptr));
-
- return cpu_ops[cpu]->cpu_suspend(arg);
}
/*
@@ -56,15 +52,15 @@ void __init cpu_suspend_set_dbg_restorer(void (*hw_bp_restore)(void *))
}
/**
- * cpu_suspend
+ * cpu_suspend() - function to enter a low-power state
+ * @arg: argument to pass to CPU suspend operations
*
- * @arg: argument to pass to the finisher function
+ * Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU
+ * operations back-end error code otherwise.
*/
int cpu_suspend(unsigned long arg)
{
- struct mm_struct *mm = current->active_mm;
- int ret, cpu = smp_processor_id();
- unsigned long flags;
+ int cpu = smp_processor_id();
/*
* If cpu_ops have not been registered or suspend
@@ -72,6 +68,21 @@ int cpu_suspend(unsigned long arg)
*/
if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_suspend)
return -EOPNOTSUPP;
+ return cpu_ops[cpu]->cpu_suspend(arg);
+}
+
+/*
+ * __cpu_suspend
+ *
+ * arg: argument to pass to the finisher function
+ * fn: finisher function pointer
+ *
+ */
+int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
+{
+ struct mm_struct *mm = current->active_mm;
+ int ret;
+ unsigned long flags;
/*
* From this point debug exceptions are disabled to prevent
@@ -86,16 +97,27 @@ int cpu_suspend(unsigned long arg)
* page tables, so that the thread address space is properly
* set-up on function return.
*/
- ret = __cpu_suspend(arg);
+ ret = __cpu_suspend_enter(arg, fn);
if (ret == 0) {
- cpu_switch_mm(mm->pgd, mm);
+ /*
+ * We are resuming from reset with TTBR0_EL1 set to the
+ * idmap to enable the MMU; restore the active_mm mappings in
+ * TTBR0_EL1 unless the active_mm == &init_mm, in which case
+ * the thread entered __cpu_suspend with TTBR0_EL1 set to
+ * reserved TTBR0 page tables and should be restored as such.
+ */
+ if (mm == &init_mm)
+ cpu_set_reserved_ttbr0();
+ else
+ cpu_switch_mm(mm->pgd, mm);
+
flush_tlb_all();
/*
* Restore per-cpu offset before any kernel
* subsystem relying on it has a chance to run.
*/
- set_my_cpu_offset(per_cpu_offset(cpu));
+ set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
/*
* Restore HW breakpoint registers to sane values
@@ -116,10 +138,10 @@ int cpu_suspend(unsigned long arg)
return ret;
}
-extern struct sleep_save_sp sleep_save_sp;
-extern phys_addr_t sleep_idmap_phys;
+struct sleep_save_sp sleep_save_sp;
+phys_addr_t sleep_idmap_phys;
-static int cpu_suspend_init(void)
+static int __init cpu_suspend_init(void)
{
void *ctx_ptr;
diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index d2d11b7055ba..8121aa6db2ff 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -33,11 +33,18 @@
#endif /*!CONFIG_PA20*/
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*. */
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+ We don't explicitly expose that "*a" may be written as reload
+ fails to find a register in class R1_REGS when "a" needs to be
+ reloaded when generating 64-bit PIC code. Instead, we clobber
+ memory to indicate to the compiler that the assembly code reads
+ or writes to items other than those listed in the input and output
+ operands. This may pessimize the code somewhat but __ldcw is
+ usually used within code blocks surrounded by memory barriors. */
#define __ldcw(a) ({ \
unsigned __ret; \
- __asm__ __volatile__(__LDCW " 0(%2),%0" \
- : "=r" (__ret), "+m" (*(a)) : "r" (a)); \
+ __asm__ __volatile__(__LDCW " 0(%1),%0" \
+ : "=r" (__ret) : "r" (a) : "memory"); \
__ret; \
})
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index bffd89d27301..e73cdadab785 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -118,8 +118,10 @@
#define __MSR (MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF |MSR_HV)
#ifdef __BIG_ENDIAN__
#define MSR_ __MSR
+#define MSR_IDLE (MSR_ME | MSR_SF | MSR_HV)
#else
#define MSR_ (__MSR | MSR_LE)
+#define MSR_IDLE (MSR_ME | MSR_SF | MSR_HV | MSR_LE)
#endif
#define MSR_KERNEL (MSR_ | MSR_64BIT)
#define MSR_USER32 (MSR_ | MSR_PR | MSR_EE)
diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S
index 5cf3d367190d..a29f5b0f9d3e 100644
--- a/arch/powerpc/kernel/idle_power7.S
+++ b/arch/powerpc/kernel/idle_power7.S
@@ -101,7 +101,23 @@ _GLOBAL(power7_powersave_common)
std r9,_MSR(r1)
std r1,PACAR1(r13)
-_GLOBAL(power7_enter_nap_mode)
+ /*
+ * Go to real mode to do the nap, as required by the architecture.
+ * Also, we need to be in real mode before setting hwthread_state,
+ * because as soon as we do that, another thread can switch
+ * the MMU context to the guest.
+ */
+ LOAD_REG_IMMEDIATE(r5, MSR_IDLE)
+ li r6, MSR_RI
+ andc r6, r9, r6
+ LOAD_REG_ADDR(r7, power7_enter_nap_mode)
+ mtmsrd r6, 1 /* clear RI before setting SRR0/1 */
+ mtspr SPRN_SRR0, r7
+ mtspr SPRN_SRR1, r5
+ rfid
+
+ .globl power7_enter_nap_mode
+power7_enter_nap_mode:
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
/* Tell KVM we're napping */
li r4,KVM_HWTHREAD_IN_NAP
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index aa9aff3d6ad3..b6f123ab90ed 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -79,7 +79,7 @@ static long mce_handle_derror(uint64_t dsisr, uint64_t slb_error_bits)
}
if (dsisr & P7_DSISR_MC_TLB_MULTIHIT_MFTLB) {
if (cur_cpu_spec && cur_cpu_spec->flush_tlb)
- cur_cpu_spec->flush_tlb(TLBIEL_INVAL_PAGE);
+ cur_cpu_spec->flush_tlb(TLBIEL_INVAL_SET);
/* reset error bits */
dsisr &= ~P7_DSISR_MC_TLB_MULTIHIT_MFTLB;
}
@@ -110,7 +110,7 @@ static long mce_handle_common_ierror(uint64_t srr1)
break;
case P7_SRR1_MC_IFETCH_TLB_MULTIHIT:
if (cur_cpu_spec && cur_cpu_spec->flush_tlb) {
- cur_cpu_spec->flush_tlb(TLBIEL_INVAL_PAGE);
+ cur_cpu_spec->flush_tlb(TLBIEL_INVAL_SET);
handled = 1;
}
break;
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 87ba7cf99cd7..65d633f20d37 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -164,7 +164,7 @@ static void spufs_prune_dir(struct dentry *dir)
struct dentry *dentry, *tmp;
mutex_lock(&dir->d_inode->i_mutex);
- list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_u.d_child) {
+ list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_child) {
spin_lock(&dentry->d_lock);
if (!(d_unhashed(dentry)) && dentry->d_inode) {
dget_dlock(dentry);
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index ca38139423ae..437e61159279 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -249,7 +249,7 @@ COMPAT_SYSCALL_DEFINE2(s390_setgroups16, int, gidsetsize, u16 __user *, grouplis
struct group_info *group_info;
int retval;
- if (!capable(CAP_SETGID))
+ if (!may_setgroups())
return -EPERM;
if ((unsigned)gidsetsize > NGROUPS_MAX)
return -EINVAL;
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 4653ac6e182b..97e7b598fed1 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -229,10 +229,12 @@ static void ipte_lock_simple(struct kvm_vcpu *vcpu)
goto out;
ic = &vcpu->kvm->arch.sca->ipte_control;
do {
- old = ACCESS_ONCE(*ic);
+ old = *ic;
+ barrier();
while (old.k) {
cond_resched();
- old = ACCESS_ONCE(*ic);
+ old = *ic;
+ barrier();
}
new = old;
new.k = 1;
@@ -251,7 +253,9 @@ static void ipte_unlock_simple(struct kvm_vcpu *vcpu)
goto out;
ic = &vcpu->kvm->arch.sca->ipte_control;
do {
- new = old = ACCESS_ONCE(*ic);
+ old = *ic;
+ barrier();
+ new = old;
new.k = 0;
} while (cmpxchg(&ic->val, old.val, new.val) != old.val);
if (!ipte_lock_count)
@@ -266,10 +270,12 @@ static void ipte_lock_siif(struct kvm_vcpu *vcpu)
ic = &vcpu->kvm->arch.sca->ipte_control;
do {
- old = ACCESS_ONCE(*ic);
+ old = *ic;
+ barrier();
while (old.kg) {
cond_resched();
- old = ACCESS_ONCE(*ic);
+ old = *ic;
+ barrier();
}
new = old;
new.k = 1;
@@ -283,7 +289,9 @@ static void ipte_unlock_siif(struct kvm_vcpu *vcpu)
ic = &vcpu->kvm->arch.sca->ipte_control;
do {
- new = old = ACCESS_ONCE(*ic);
+ old = *ic;
+ barrier();
+ new = old;
new.kh--;
if (!new.kh)
new.k = 0;
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 5d5ebd400162..db3625ae7a47 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -247,7 +247,7 @@ static int __deliver_prog_irq(struct kvm_vcpu *vcpu,
break;
case PGM_MONITOR:
rc = put_guest_lc(vcpu, pgm_info->mon_class_nr,
- (u64 *)__LC_MON_CLASS_NR);
+ (u16 *)__LC_MON_CLASS_NR);
rc |= put_guest_lc(vcpu, pgm_info->mon_code,
(u64 *)__LC_MON_CODE);
break;
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index f89c1cd67751..9f41229df1aa 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -800,7 +800,7 @@ int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu)
break;
reg = (reg + 1) % 16;
} while (1);
-
+ kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu);
return 0;
}
@@ -872,7 +872,7 @@ static int handle_lctlg(struct kvm_vcpu *vcpu)
break;
reg = (reg + 1) % 16;
} while (1);
-
+ kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu);
return 0;
}
diff --git a/arch/x86/include/uapi/asm/ldt.h b/arch/x86/include/uapi/asm/ldt.h
index 46727eb37bfe..6e1aaf73852a 100644
--- a/arch/x86/include/uapi/asm/ldt.h
+++ b/arch/x86/include/uapi/asm/ldt.h
@@ -28,6 +28,13 @@ struct user_desc {
unsigned int seg_not_present:1;
unsigned int useable:1;
#ifdef __x86_64__
+ /*
+ * Because this bit is not present in 32-bit user code, user
+ * programs can pass uninitialized values here. Therefore, in
+ * any context in which a user_desc comes from a 32-bit program,
+ * the kernel must act as though lm == 0, regardless of the
+ * actual value.
+ */
unsigned int lm:1;
#endif
};
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index ae6552a0701f..a4c37cb40519 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -3249,6 +3249,17 @@ static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type,
return box;
}
+/*
+ * Using uncore_pmu_event_init pmu event_init callback
+ * as a detection point for uncore events.
+ */
+static int uncore_pmu_event_init(struct perf_event *event);
+
+static bool is_uncore_event(struct perf_event *event)
+{
+ return event->pmu->event_init == uncore_pmu_event_init;
+}
+
static int
uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader, bool dogrp)
{
@@ -3263,13 +3274,18 @@ uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader, b
return -EINVAL;
n = box->n_events;
- box->event_list[n] = leader;
- n++;
+
+ if (is_uncore_event(leader)) {
+ box->event_list[n] = leader;
+ n++;
+ }
+
if (!dogrp)
return n;
list_for_each_entry(event, &leader->sibling_list, group_entry) {
- if (event->state <= PERF_EVENT_STATE_OFF)
+ if (!is_uncore_event(event) ||
+ event->state <= PERF_EVENT_STATE_OFF)
continue;
if (n >= max_count)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 3dd8e2c4d74a..07de51f66deb 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -282,7 +282,14 @@ NOKPROBE_SYMBOL(do_async_page_fault);
static void __init paravirt_ops_setup(void)
{
pv_info.name = "KVM";
- pv_info.paravirt_enabled = 1;
+
+ /*
+ * KVM isn't paravirt in the sense of paravirt_enabled. A KVM
+ * guest kernel works like a bare metal kernel with additional
+ * features, and paravirt_enabled is about features that are
+ * missing.
+ */
+ pv_info.paravirt_enabled = 0;
if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
pv_cpu_ops.io_delay = kvm_io_delay;
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index d9156ceecdff..a2de9bc7ac0b 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -263,7 +263,6 @@ void __init kvmclock_init(void)
#endif
kvm_get_preset_lpj();
clocksource_register_hz(&kvm_clock, NSEC_PER_SEC);
- pv_info.paravirt_enabled = 1;
pv_info.name = "KVM";
if (kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE_STABLE_BIT))
diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S
index c050a0153168..0b15b5b3957c 100644
--- a/arch/x86/kernel/mcount_64.S
+++ b/arch/x86/kernel/mcount_64.S
@@ -45,6 +45,39 @@ END(function_hook)
#endif
.endm
+#ifdef CONFIG_FRAME_POINTER
+/*
+ * Stack traces will stop at the ftrace trampoline if the frame pointer
+ * is not set up properly. If fentry is used, we need to save a frame
+ * pointer for the parent as well as the function traced, because the
+ * fentry is called before the stack frame is set up, where as mcount
+ * is called afterward.
+ */
+.macro create_frame parent rip
+#ifdef CC_USING_FENTRY
+ pushq \parent
+ pushq %rbp
+ movq %rsp, %rbp
+#endif
+ pushq \rip
+ pushq %rbp
+ movq %rsp, %rbp
+.endm
+
+.macro restore_frame
+#ifdef CC_USING_FENTRY
+ addq $16, %rsp
+#endif
+ popq %rbp
+ addq $8, %rsp
+.endm
+#else
+.macro create_frame parent rip
+.endm
+.macro restore_frame
+.endm
+#endif /* CONFIG_FRAME_POINTER */
+
ENTRY(ftrace_caller)
/* Check if tracing was disabled (quick check) */
cmpl $0, function_trace_stop
@@ -54,9 +87,13 @@ ENTRY(ftrace_caller)
/* regs go into 4th parameter (but make it NULL) */
movq $0, %rcx
+ create_frame %rsi, %rdi
+
GLOBAL(ftrace_call)
call ftrace_stub
+ restore_frame
+
MCOUNT_RESTORE_FRAME
ftrace_return:
@@ -104,9 +141,13 @@ ENTRY(ftrace_regs_caller)
/* regs go into 4th parameter */
leaq (%rsp), %rcx
+ create_frame %rsi, %rdi
+
GLOBAL(ftrace_regs_call)
call ftrace_stub
+ restore_frame
+
/* Copy flags back to SS, to restore them */
movq EFLAGS(%rsp), %rax
movq %rax, SS(%rsp)
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ca5b02d405c3..166119618afb 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -286,24 +286,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
fpu = switch_fpu_prepare(prev_p, next_p, cpu);
- /*
- * Reload esp0, LDT and the page table pointer:
- */
+ /* Reload esp0 and ss1. */
load_sp0(tss, next);
- /*
- * Switch DS and ES.
- * This won't pick up thread selector changes, but I guess that is ok.
- */
- savesegment(es, prev->es);
- if (unlikely(next->es | prev->es))
- loadsegment(es, next->es);
-
- savesegment(ds, prev->ds);
- if (unlikely(next->ds | prev->ds))
- loadsegment(ds, next->ds);
-
-
/* We must save %fs and %gs before load_TLS() because
* %fs and %gs may be cleared by load_TLS().
*
@@ -312,41 +297,101 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
savesegment(fs, fsindex);
savesegment(gs, gsindex);
+ /*
+ * Load TLS before restoring any segments so that segment loads
+ * reference the correct GDT entries.
+ */
load_TLS(next, cpu);
/*
- * Leave lazy mode, flushing any hypercalls made here.
- * This must be done before restoring TLS segments so
- * the GDT and LDT are properly updated, and must be
- * done before math_state_restore, so the TS bit is up
- * to date.
+ * Leave lazy mode, flushing any hypercalls made here. This
+ * must be done after loading TLS entries in the GDT but before
+ * loading segments that might reference them, and and it must
+ * be done before math_state_restore, so the TS bit is up to
+ * date.
*/
arch_end_context_switch(next_p);
+ /* Switch DS and ES.
+ *
+ * Reading them only returns the selectors, but writing them (if
+ * nonzero) loads the full descriptor from the GDT or LDT. The
+ * LDT for next is loaded in switch_mm, and the GDT is loaded
+ * above.
+ *
+ * We therefore need to write new values to the segment
+ * registers on every context switch unless both the new and old
+ * values are zero.
+ *
+ * Note that we don't need to do anything for CS and SS, as
+ * those are saved and restored as part of pt_regs.
+ */
+ savesegment(es, prev->es);
+ if (unlikely(next->es | prev->es))
+ loadsegment(es, next->es);
+
+ savesegment(ds, prev->ds);
+ if (unlikely(next->ds | prev->ds))
+ loadsegment(ds, next->ds);
+
/*
* Switch FS and GS.
*
- * Segment register != 0 always requires a reload. Also
- * reload when it has changed. When prev process used 64bit
- * base always reload to avoid an information leak.
+ * These are even more complicated than FS and GS: they have
+ * 64-bit bases are that controlled by arch_prctl. Those bases
+ * only differ from the values in the GDT or LDT if the selector
+ * is 0.
+ *
+ * Loading the segment register resets the hidden base part of
+ * the register to 0 or the value from the GDT / LDT. If the
+ * next base address zero, writing 0 to the segment register is
+ * much faster than using wrmsr to explicitly zero the base.
+ *
+ * The thread_struct.fs and thread_struct.gs values are 0
+ * if the fs and gs bases respectively are not overridden
+ * from the values implied by fsindex and gsindex. They
+ * are nonzero, and store the nonzero base addresses, if
+ * the bases are overridden.
+ *
+ * (fs != 0 && fsindex != 0) || (gs != 0 && gsindex != 0) should
+ * be impossible.
+ *
+ * Therefore we need to reload the segment registers if either
+ * the old or new selector is nonzero, and we need to override
+ * the base address if next thread expects it to be overridden.
+ *
+ * This code is unnecessarily slow in the case where the old and
+ * new indexes are zero and the new base is nonzero -- it will
+ * unnecessarily write 0 to the selector before writing the new
+ * base address.
+ *
+ * Note: This all depends on arch_prctl being the only way that
+ * user code can override the segment base. Once wrfsbase and
+ * wrgsbase are enabled, most of this code will need to change.
*/
if (unlikely(fsindex | next->fsindex | prev->fs)) {
loadsegment(fs, next->fsindex);
+
/*
- * Check if the user used a selector != 0; if yes
- * clear 64bit base, since overloaded base is always
- * mapped to the Null selector
+ * If user code wrote a nonzero value to FS, then it also
+ * cleared the overridden base address.
+ *
+ * XXX: if user code wrote 0 to FS and cleared the base
+ * address itself, we won't notice and we'll incorrectly
+ * restore the prior base address next time we reschdule
+ * the process.
*/
if (fsindex)
prev->fs = 0;
}
- /* when next process has a 64bit base use it */
if (next->fs)
wrmsrl(MSR_FS_BASE, next->fs);
prev->fsindex = fsindex;
if (unlikely(gsindex | next->gsindex | prev->gs)) {
load_gs_index(next->gsindex);
+
+ /* This works (and fails) the same way as fsindex above. */
if (gsindex)
prev->gs = 0;
}
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index f7fec09e3e3a..4e942f31b1a7 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -27,6 +27,37 @@ static int get_free_idx(void)
return -ESRCH;
}
+static bool tls_desc_okay(const struct user_desc *info)
+{
+ if (LDT_empty(info))
+ return true;
+
+ /*
+ * espfix is required for 16-bit data segments, but espfix
+ * only works for LDT segments.
+ */
+ if (!info->seg_32bit)
+ return false;
+
+ /* Only allow data segments in the TLS array. */
+ if (info->contents > 1)
+ return false;
+
+ /*
+ * Non-present segments with DPL 3 present an interesting attack
+ * surface. The kernel should handle such segments correctly,
+ * but TLS is very difficult to protect in a sandbox, so prevent
+ * such segments from being created.
+ *
+ * If userspace needs to remove a TLS entry, it can still delete
+ * it outright.
+ */
+ if (info->seg_not_present)
+ return false;
+
+ return true;
+}
+
static void set_tls_desc(struct task_struct *p, int idx,
const struct user_desc *info, int n)
{
@@ -66,6 +97,9 @@ int do_set_thread_area(struct task_struct *p, int idx,
if (copy_from_user(&info, u_info, sizeof(info)))
return -EFAULT;
+ if (!tls_desc_okay(&info))
+ return -EINVAL;
+
if (idx == -1)
idx = info.entry_number;
@@ -192,6 +226,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
{
struct user_desc infobuf[GDT_ENTRY_TLS_ENTRIES];
const struct user_desc *info;
+ int i;
if (pos >= GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) ||
(pos % sizeof(struct user_desc)) != 0 ||
@@ -205,6 +240,10 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
else
info = infobuf;
+ for (i = 0; i < count / sizeof(struct user_desc); i++)
+ if (!tls_desc_okay(info + i))
+ return -EINVAL;
+
set_tls_desc(target,
GDT_ENTRY_TLS_MIN + (pos / sizeof(struct user_desc)),
info, count / sizeof(struct user_desc));
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 27362eceec9c..bf9e8fdc2425 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2088,7 +2088,7 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt)
/* Outer-privilege level return is not implemented */
if (ctxt->mode >= X86EMUL_MODE_PROT16 && (cs & 3) > cpl)
return X86EMUL_UNHANDLEABLE;
- rc = __load_segment_descriptor(ctxt, (u16)cs, VCPU_SREG_CS, 0, false,
+ rc = __load_segment_descriptor(ctxt, (u16)cs, VCPU_SREG_CS, cpl, false,
&new_desc);
if (rc != X86EMUL_CONTINUE)
return rc;
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 1cd2a5fbde07..1bbf6861507e 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4433,7 +4433,7 @@ void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm)
* zap all shadow pages.
*/
if (unlikely(kvm_current_mmio_generation(kvm) == 0)) {
- printk_ratelimited(KERN_INFO "kvm: zapping shadow pages for mmio generation wraparound\n");
+ printk_ratelimited(KERN_DEBUG "kvm: zapping shadow pages for mmio generation wraparound\n");
kvm_mmu_invalidate_zap_all_pages(kvm);
}
}
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 515704968236..2557e8e2193d 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2344,12 +2344,12 @@ static __init void nested_vmx_setup_ctls_msrs(void)
nested_vmx_secondary_ctls_low = 0;
nested_vmx_secondary_ctls_high &=
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
- SECONDARY_EXEC_UNRESTRICTED_GUEST |
SECONDARY_EXEC_WBINVD_EXITING;
if (enable_ept) {
/* nested EPT: emulate EPT also to L1 */
- nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT;
+ nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT |
+ SECONDARY_EXEC_UNRESTRICTED_GUEST;
nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
VMX_EPT_INVEPT_BIT;
diff --git a/arch/xtensa/include/asm/highmem.h b/arch/xtensa/include/asm/highmem.h
index 2653ef5d55f1..694113314a77 100644
--- a/arch/xtensa/include/asm/highmem.h
+++ b/arch/xtensa/include/asm/highmem.h
@@ -23,7 +23,7 @@
#define PKMAP_NR(virt) (((virt) - PKMAP_BASE) >> PAGE_SHIFT)
#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
-#define kmap_prot PAGE_KERNEL
+#define kmap_prot PAGE_KERNEL_EXEC
extern pte_t *pkmap_page_table;
diff --git a/block/blk-core.c b/block/blk-core.c
index 6f8dba161bfe..1cfe8e603d3b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -524,6 +524,9 @@ void blk_cleanup_queue(struct request_queue *q)
del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer);
blk_sync_queue(q);
+ if (q->mq_ops)
+ blk_mq_free_queue(q);
+
spin_lock_irq(lock);
if (q->queue_lock != &q->__queue_lock)
q->queue_lock = &q->__queue_lock;
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 1065d7c65fa1..72e5ed691e37 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -90,7 +90,7 @@ unsigned int *blk_mq_make_queue_map(struct blk_mq_tag_set *set)
unsigned int *map;
/* If cpus are offline, map them to first hctx */
- map = kzalloc_node(sizeof(*map) * num_possible_cpus(), GFP_KERNEL,
+ map = kzalloc_node(sizeof(*map) * nr_cpu_ids, GFP_KERNEL,
set->numa_node);
if (!map)
return NULL;
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index ed5217867555..e0fb3f4a628f 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -390,16 +390,15 @@ static void blk_mq_sysfs_init(struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
struct blk_mq_ctx *ctx;
- int i, j;
+ int i;
kobject_init(&q->mq_kobj, &blk_mq_ktype);
- queue_for_each_hw_ctx(q, hctx, i) {
+ queue_for_each_hw_ctx(q, hctx, i)
kobject_init(&hctx->kobj, &blk_mq_hw_ktype);
- hctx_for_each_ctx(hctx, ctx, j)
- kobject_init(&ctx->kobj, &blk_mq_ctx_ktype);
- }
+ queue_for_each_ctx(q, ctx, i)
+ kobject_init(&ctx->kobj, &blk_mq_ctx_ktype);
}
int blk_mq_register_disk(struct gendisk *disk)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 74a4168ea34e..1caaa7c4605d 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -137,6 +137,7 @@ static inline bool hctx_may_queue(struct blk_mq_hw_ctx *hctx,
static int __bt_get_word(struct blk_align_bitmap *bm, unsigned int last_tag)
{
int tag, org_last_tag, end;
+ bool wrap = last_tag != 0;
org_last_tag = last_tag;
end = bm->depth;
@@ -148,15 +149,16 @@ restart:
* We started with an offset, start from 0 to
* exhaust the map.
*/
- if (org_last_tag && last_tag) {
- end = last_tag;
+ if (wrap) {
+ wrap = false;
+ end = org_last_tag;
last_tag = 0;
goto restart;
}
return -1;
}
last_tag = tag + 1;
- } while (test_and_set_bit_lock(tag, &bm->word));
+ } while (test_and_set_bit(tag, &bm->word));
return tag;
}
@@ -340,11 +342,10 @@ static void bt_clear_tag(struct blk_mq_bitmap_tags *bt, unsigned int tag)
struct bt_wait_state *bs;
int wait_cnt;
- /*
- * The unlock memory barrier need to order access to req in free
- * path and clearing tag bit
- */
- clear_bit_unlock(TAG_TO_BIT(bt, tag), &bt->map[index].word);
+ clear_bit(TAG_TO_BIT(bt, tag), &bt->map[index].word);
+
+ /* Ensure that the wait list checks occur after clear_bit(). */
+ smp_mb();
bs = bt_wake_ptr(bt);
if (!bs)
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 23321fbab293..3ef60c4062c7 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -492,17 +492,15 @@ static void blk_free_queue_rcu(struct rcu_head *rcu_head)
* Currently, its primary task it to free all the &struct request
* structures that were allocated to the queue and the queue itself.
*
- * Caveat:
- * Hopefully the low level driver will have finished any
- * outstanding requests first...
+ * Note:
+ * The low level driver must have finished any outstanding requests first
+ * via blk_cleanup_queue().
**/
static void blk_release_queue(struct kobject *kobj)
{
struct request_queue *q =
container_of(kobj, struct request_queue, kobj);
- blk_sync_queue(q);
-
blkcg_exit_queue(q);
if (q->elevator) {
@@ -517,9 +515,6 @@ static void blk_release_queue(struct kobject *kobj)
if (q->queue_tags)
__blk_queue_free_tags(q);
- if (q->mq_ops)
- blk_mq_free_queue(q);
-
kfree(q->flush_rq);
blk_trace_shutdown(q);
diff --git a/block/genhd.c b/block/genhd.c
index e6723bd4d7a1..a8d586a729bb 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1070,9 +1070,16 @@ int disk_expand_part_tbl(struct gendisk *disk, int partno)
struct disk_part_tbl *old_ptbl = disk->part_tbl;
struct disk_part_tbl *new_ptbl;
int len = old_ptbl ? old_ptbl->len : 0;
- int target = partno + 1;
+ int i, target;
size_t size;
- int i;
+
+ /*
+ * check for int overflow, since we can get here from blkpg_ioctl()
+ * with a user passed 'partno'.
+ */
+ target = partno + 1;
+ if (target < 0)
+ return -EINVAL;
/* disk_max_parts() is zero during initialization, ignore if so */
if (disk_max_parts(disk) && target > disk_max_parts(disk))
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 6a3ad8011585..1de4beeb25f8 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -449,6 +449,9 @@ void af_alg_complete(struct crypto_async_request *req, int err)
{
struct af_alg_completion *completion = req->data;
+ if (err == -EINPROGRESS)
+ return;
+
completion->err = err;
complete(&completion->completion);
}
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 83e910a57563..876bae5ade33 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -254,13 +254,15 @@ static ssize_t store_drivers_probe(struct bus_type *bus,
const char *buf, size_t count)
{
struct device *dev;
+ int err = -EINVAL;
dev = bus_find_device_by_name(bus, NULL, buf);
if (!dev)
return -ENODEV;
- if (bus_rescan_devices_helper(dev, NULL) != 0)
- return -EINVAL;
- return count;
+ if (bus_rescan_devices_helper(dev, NULL) == 0)
+ err = count;
+ put_device(dev);
+ return err;
}
static struct device *next_device(struct klist_iter *i)
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 09803d0d5207..eeba503ee7bb 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1343,6 +1343,7 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct
struct request_queue * const b =
device->ldev->backing_bdev->bd_disk->queue;
if (b->merge_bvec_fn) {
+ bvm->bi_bdev = device->ldev->backing_bdev;
backing_limit = b->merge_bvec_fn(b, bvm, bvec);
limit = min(limit, backing_limit);
}
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 3a7356a72b53..a5075bb1c47f 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -105,6 +105,7 @@ static const struct usb_device_id ath3k_table[] = {
{ USB_DEVICE(0x13d3, 0x3375) },
{ USB_DEVICE(0x13d3, 0x3393) },
{ USB_DEVICE(0x13d3, 0x3402) },
+ { USB_DEVICE(0x13d3, 0x3408) },
{ USB_DEVICE(0x13d3, 0x3432) },
/* Atheros AR5BBU12 with sflash firmware */
@@ -156,6 +157,7 @@ static const struct usb_device_id ath3k_blist_tbl[] = {
{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
/* Atheros AR5BBU22 with sflash firmware */
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 67fa7de5376a..9ae597410c76 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -184,6 +184,7 @@ static const struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
/* Atheros AR5BBU12 with sflash firmware */
diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c
index 13eae14c2cc2..b50469faf70c 100644
--- a/drivers/clk/samsung/clk-exynos-audss.c
+++ b/drivers/clk/samsung/clk-exynos-audss.c
@@ -210,6 +210,10 @@ static int exynos_audss_clk_remove(struct platform_device *pdev)
{
int i;
+#ifdef CONFIG_PM_SLEEP
+ unregister_syscore_ops(&exynos_audss_clk_syscore_ops);
+#endif
+
of_clk_del_provider(pdev->dev.of_node);
for (i = 0; i < clk_data.clk_num; i++) {
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 5163ec13429d..506949d2e922 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -429,11 +429,22 @@ static void __init arch_counter_register(unsigned type)
u64 start_count;
/* Register the CP15 based counter if we have one */
- if (type & ARCH_CP15_TIMER)
- arch_timer_read_counter = arch_counter_get_cntvct;
- else
+ if (type & ARCH_CP15_TIMER) {
+ if (arch_timer_use_virtual)
+ arch_timer_read_counter = arch_counter_get_cntvct;
+ else
+ arch_timer_read_counter = arch_counter_get_cntpct;
+ } else {
arch_timer_read_counter = arch_counter_get_cntvct_mem;
+ /* If the clocksource name is "arch_sys_counter" the
+ * VDSO will attempt to read the CP15-based counter.
+ * Ensure this does not happen when CP15-based
+ * counter is not available.
+ */
+ clocksource_counter.name = "arch_mem_counter";
+ }
+
start_count = arch_timer_read_counter();
clocksource_register_hz(&clocksource_counter, arch_timer_rate);
cyclecounter.mult = clocksource_counter.mult;
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 08e33b8b13a4..9f59c9027ebe 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -378,10 +378,11 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
/*
* The specification doesn't give any recommendation on how often to
- * retry native transactions, so retry 7 times like for I2C-over-AUX
- * transactions.
+ * retry native transactions. We used to retry 7 times like for
+ * aux i2c transactions but real world devices this wasn't
+ * sufficient, bump to 32 which makes Dell 4k monitors happier.
*/
- for (retry = 0; retry < 7; retry++) {
+ for (retry = 0; retry < 32; retry++) {
mutex_lock(&aux->hw_mutex);
err = aux->transfer(aux, &msg);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index d5d8cea1a679..20e820c3abbb 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -331,9 +331,18 @@ bool drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)
{
struct drm_device *dev = fb_helper->dev;
bool ret;
+ bool do_delayed = false;
+
drm_modeset_lock_all(dev);
ret = restore_fbdev_mode(fb_helper);
+
+ do_delayed = fb_helper->delayed_hotplug;
+ if (do_delayed)
+ fb_helper->delayed_hotplug = false;
drm_modeset_unlock_all(dev);
+
+ if (do_delayed)
+ drm_fb_helper_hotplug_event(fb_helper);
return ret;
}
EXPORT_SYMBOL(drm_fb_helper_restore_fbdev_mode_unlocked);
@@ -858,10 +867,6 @@ int drm_fb_helper_set_par(struct fb_info *info)
drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
- if (fb_helper->delayed_hotplug) {
- fb_helper->delayed_hotplug = false;
- drm_fb_helper_hotplug_event(fb_helper);
- }
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_set_par);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 374f964323ad..bc47ba421fc8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -817,6 +817,7 @@ struct i915_suspend_saved_registers {
u32 savePIPEB_LINK_N1;
u32 saveMCHBAR_RENDER_STANDBY;
u32 savePCH_PORT_HOTPLUG;
+ u16 saveGCDGMBUS;
};
struct vlv_s0ix_state {
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 7465ab0fd396..936571622b43 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -137,7 +137,11 @@ static unsigned long i915_stolen_to_physical(struct drm_device *dev)
r = devm_request_mem_region(dev->dev, base + 1,
dev_priv->gtt.stolen_size - 1,
"Graphics Stolen Memory");
- if (r == NULL) {
+ /*
+ * GEN3 firmware likes to smash pci bridges into the stolen
+ * range. Apparently this works.
+ */
+ if (r == NULL && !IS_GEN3(dev)) {
DRM_ERROR("conflict detected with stolen region: [0x%08x - 0x%08x]\n",
base, base + (uint32_t)dev_priv->gtt.stolen_size);
base = 0;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index c05c84f3f091..b54f8563ebbb 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3591,7 +3591,7 @@ static void valleyview_irq_uninstall(struct drm_device *dev)
valleyview_display_irqs_uninstall(dev_priv);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
- dev_priv->irq_mask = 0;
+ dev_priv->irq_mask = ~0;
I915_WRITE(VLV_IIR, 0xffffffff);
I915_WRITE(VLV_IMR, 0xffffffff);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a5bab61bfc00..4fcff20cab98 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -74,6 +74,7 @@
#define I915_GC_RENDER_CLOCK_166_MHZ (0 << 0)
#define I915_GC_RENDER_CLOCK_200_MHZ (1 << 0)
#define I915_GC_RENDER_CLOCK_333_MHZ (4 << 0)
+#define GCDGMBUS 0xcc
#define PCI_LBPC 0xf4 /* legacy/combination backlight modes, also called LBB */
@@ -351,6 +352,7 @@
#define PIPE_CONTROL_STORE_DATA_INDEX (1<<21)
#define PIPE_CONTROL_CS_STALL (1<<20)
#define PIPE_CONTROL_TLB_INVALIDATE (1<<18)
+#define PIPE_CONTROL_MEDIA_STATE_CLEAR (1<<16)
#define PIPE_CONTROL_QW_WRITE (1<<14)
#define PIPE_CONTROL_POST_SYNC_OP_MASK (3<<14)
#define PIPE_CONTROL_DEPTH_STALL (1<<13)
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 043123c77a1f..e22b0e825de2 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -328,6 +328,10 @@ int i915_save_state(struct drm_device *dev)
}
}
+ if (IS_GEN4(dev))
+ pci_read_config_word(dev->pdev, GCDGMBUS,
+ &dev_priv->regfile.saveGCDGMBUS);
+
/* Cache mode state */
if (INTEL_INFO(dev)->gen < 7)
dev_priv->regfile.saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0);
@@ -356,6 +360,10 @@ int i915_restore_state(struct drm_device *dev)
mutex_lock(&dev->struct_mutex);
i915_gem_restore_fences(dev);
+
+ if (IS_GEN4(dev))
+ pci_write_config_word(dev->pdev, GCDGMBUS,
+ dev_priv->regfile.saveGCDGMBUS);
i915_restore_display(dev);
if (!drm_core_check_feature(dev, DRIVER_MODESET)) {
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index ca6a8cf58ab0..a8221d9349ee 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3209,9 +3209,10 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
}
}
- /* Training Pattern 3 support */
+ /* Training Pattern 3 support, both source and sink */
if (intel_dp->dpcd[DP_DPCD_REV] >= 0x12 &&
- intel_dp->dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED) {
+ intel_dp->dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED &&
+ (IS_HASWELL(dev) || INTEL_INFO(dev)->gen >= 8)) {
intel_dp->use_tps3 = true;
DRM_DEBUG_KMS("Displayport TPS3 supported");
} else
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 12b02fe1d0ae..59b294c5fe41 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -711,7 +711,7 @@ static void pch_enable_backlight(struct intel_connector *connector)
cpu_ctl2 = I915_READ(BLC_PWM_CPU_CTL2);
if (cpu_ctl2 & BLM_PWM_ENABLE) {
- WARN(1, "cpu backlight already enabled\n");
+ DRM_DEBUG_KMS("cpu backlight already enabled\n");
cpu_ctl2 &= ~BLM_PWM_ENABLE;
I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2);
}
@@ -755,7 +755,7 @@ static void i9xx_enable_backlight(struct intel_connector *connector)
ctl = I915_READ(BLC_PWM_CTL);
if (ctl & BACKLIGHT_DUTY_CYCLE_MASK_PNV) {
- WARN(1, "backlight already enabled\n");
+ DRM_DEBUG_KMS("backlight already enabled\n");
I915_WRITE(BLC_PWM_CTL, 0);
}
@@ -786,7 +786,7 @@ static void i965_enable_backlight(struct intel_connector *connector)
ctl2 = I915_READ(BLC_PWM_CTL2);
if (ctl2 & BLM_PWM_ENABLE) {
- WARN(1, "backlight already enabled\n");
+ DRM_DEBUG_KMS("backlight already enabled\n");
ctl2 &= ~BLM_PWM_ENABLE;
I915_WRITE(BLC_PWM_CTL2, ctl2);
}
@@ -820,7 +820,7 @@ static void vlv_enable_backlight(struct intel_connector *connector)
ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));
if (ctl2 & BLM_PWM_ENABLE) {
- WARN(1, "backlight already enabled\n");
+ DRM_DEBUG_KMS("backlight already enabled\n");
ctl2 &= ~BLM_PWM_ENABLE;
I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);
}
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 7add7eead21d..db8e92f27289 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -352,12 +352,15 @@ gen7_render_ring_flush(struct intel_engine_cs *ring,
flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+ flags |= PIPE_CONTROL_MEDIA_STATE_CLEAR;
/*
* TLB invalidate requires a post-sync write.
*/
flags |= PIPE_CONTROL_QW_WRITE;
flags |= PIPE_CONTROL_GLOBAL_GTT_IVB;
+ flags |= PIPE_CONTROL_STALL_AT_SCOREBOARD;
+
/* Workaround: we must issue a pipe_control with CS-stall bit
* set before a pipe_control command that has the state cache
* invalidate bit set. */
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 4f6fef7ac069..28ac6156ec1d 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -43,8 +43,8 @@
static void
assert_device_not_suspended(struct drm_i915_private *dev_priv)
{
- WARN(HAS_RUNTIME_PM(dev_priv->dev) && dev_priv->pm.suspended,
- "Device suspended\n");
+ WARN_ONCE(HAS_RUNTIME_PM(dev_priv->dev) && dev_priv->pm.suspended,
+ "Device suspended\n");
}
static void __gen6_gt_wait_for_thread_c0(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index d416bb2ff48d..c224eaef272e 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -4754,7 +4754,7 @@ void ci_dpm_disable(struct radeon_device *rdev)
ci_enable_spread_spectrum(rdev, false);
ci_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, false);
ci_stop_dpm(rdev);
- ci_enable_ds_master_switch(rdev, true);
+ ci_enable_ds_master_switch(rdev, false);
ci_enable_ulv(rdev, false);
ci_clear_vc(rdev);
ci_reset_to_default(rdev);
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 6f015436e51d..8d391b51cedc 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -5979,6 +5979,7 @@ static void cik_enable_mgcg(struct radeon_device *rdev, bool enable)
}
orig = data = RREG32(RLC_CGTT_MGCG_OVERRIDE);
+ data |= 0x00000001;
data &= 0xfffffffd;
if (orig != data)
WREG32(RLC_CGTT_MGCG_OVERRIDE, data);
@@ -6010,7 +6011,7 @@ static void cik_enable_mgcg(struct radeon_device *rdev, bool enable)
}
} else {
orig = data = RREG32(RLC_CGTT_MGCG_OVERRIDE);
- data |= 0x00000002;
+ data |= 0x00000003;
if (orig != data)
WREG32(RLC_CGTT_MGCG_OVERRIDE, data);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index c8a8a5144ec1..7555349e30da 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -191,7 +191,7 @@ static void radeon_evict_flags(struct ttm_buffer_object *bo,
rbo = container_of(bo, struct radeon_bo, tbo);
switch (bo->mem.mem_type) {
case TTM_PL_VRAM:
- if (rbo->rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready == false)
+ if (rbo->rdev->ring[radeon_copy_ring_index(rbo->rdev)].ready == false)
radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
else
radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index cf4bad2c1d59..76329d27385b 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -297,11 +297,12 @@ static void ttm_pool_update_free_locked(struct ttm_page_pool *pool,
*
* @pool: to free the pages from
* @free_all: If set to true will free all pages in pool
- * @gfp: GFP flags.
+ * @use_static: Safe to use static buffer
**/
static int ttm_page_pool_free(struct ttm_page_pool *pool, unsigned nr_free,
- gfp_t gfp)
+ bool use_static)
{
+ static struct page *static_buf[NUM_PAGES_TO_ALLOC];
unsigned long irq_flags;
struct page *p;
struct page **pages_to_free;
@@ -311,7 +312,11 @@ static int ttm_page_pool_free(struct ttm_page_pool *pool, unsigned nr_free,
if (NUM_PAGES_TO_ALLOC < nr_free)
npages_to_free = NUM_PAGES_TO_ALLOC;
- pages_to_free = kmalloc(npages_to_free * sizeof(struct page *), gfp);
+ if (use_static)
+ pages_to_free = static_buf;
+ else
+ pages_to_free = kmalloc(npages_to_free * sizeof(struct page *),
+ GFP_KERNEL);
if (!pages_to_free) {
pr_err("Failed to allocate memory for pool free operation\n");
return 0;
@@ -374,7 +379,8 @@ restart:
if (freed_pages)
ttm_pages_put(pages_to_free, freed_pages);
out:
- kfree(pages_to_free);
+ if (pages_to_free != static_buf)
+ kfree(pages_to_free);
return nr_free;
}
@@ -383,8 +389,6 @@ out:
*
* XXX: (dchinner) Deadlock warning!
*
- * We need to pass sc->gfp_mask to ttm_page_pool_free().
- *
* This code is crying out for a shrinker per pool....
*/
static unsigned long
@@ -407,8 +411,8 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
if (shrink_pages == 0)
break;
pool = &_manager->pools[(i + pool_offset)%NUM_POOLS];
- shrink_pages = ttm_page_pool_free(pool, nr_free,
- sc->gfp_mask);
+ /* OK to use static buffer since global mutex is held. */
+ shrink_pages = ttm_page_pool_free(pool, nr_free, true);
freed += nr_free - shrink_pages;
}
mutex_unlock(&lock);
@@ -710,7 +714,7 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
}
spin_unlock_irqrestore(&pool->lock, irq_flags);
if (npages)
- ttm_page_pool_free(pool, npages, GFP_KERNEL);
+ ttm_page_pool_free(pool, npages, false);
}
/*
@@ -849,9 +853,9 @@ void ttm_page_alloc_fini(void)
pr_info("Finalizing pool allocator\n");
ttm_pool_mm_shrink_fini(_manager);
+ /* OK to use static buffer since global mutex is no longer used. */
for (i = 0; i < NUM_POOLS; ++i)
- ttm_page_pool_free(&_manager->pools[i], FREE_ALL_PAGES,
- GFP_KERNEL);
+ ttm_page_pool_free(&_manager->pools[i], FREE_ALL_PAGES, true);
kobject_put(&_manager->kobj);
_manager = NULL;
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
index ca65df144765..3dfa97d04e51 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -411,11 +411,12 @@ static void ttm_dma_page_put(struct dma_pool *pool, struct dma_page *d_page)
*
* @pool: to free the pages from
* @nr_free: If set to true will free all pages in pool
- * @gfp: GFP flags.
+ * @use_static: Safe to use static buffer
**/
static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
- gfp_t gfp)
+ bool use_static)
{
+ static struct page *static_buf[NUM_PAGES_TO_ALLOC];
unsigned long irq_flags;
struct dma_page *dma_p, *tmp;
struct page **pages_to_free;
@@ -432,7 +433,11 @@ static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
npages_to_free, nr_free);
}
#endif
- pages_to_free = kmalloc(npages_to_free * sizeof(struct page *), gfp);
+ if (use_static)
+ pages_to_free = static_buf;
+ else
+ pages_to_free = kmalloc(npages_to_free * sizeof(struct page *),
+ GFP_KERNEL);
if (!pages_to_free) {
pr_err("%s: Failed to allocate memory for pool free operation\n",
@@ -502,7 +507,8 @@ restart:
if (freed_pages)
ttm_dma_pages_put(pool, &d_pages, pages_to_free, freed_pages);
out:
- kfree(pages_to_free);
+ if (pages_to_free != static_buf)
+ kfree(pages_to_free);
return nr_free;
}
@@ -531,7 +537,8 @@ static void ttm_dma_free_pool(struct device *dev, enum pool_type type)
if (pool->type != type)
continue;
/* Takes a spinlock.. */
- ttm_dma_page_pool_free(pool, FREE_ALL_PAGES, GFP_KERNEL);
+ /* OK to use static buffer since global mutex is held. */
+ ttm_dma_page_pool_free(pool, FREE_ALL_PAGES, true);
WARN_ON(((pool->npages_in_use + pool->npages_free) != 0));
/* This code path is called after _all_ references to the
* struct device has been dropped - so nobody should be
@@ -984,7 +991,7 @@ void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
/* shrink pool if necessary (only on !is_cached pools)*/
if (npages)
- ttm_dma_page_pool_free(pool, npages, GFP_KERNEL);
+ ttm_dma_page_pool_free(pool, npages, false);
ttm->state = tt_unpopulated;
}
EXPORT_SYMBOL_GPL(ttm_dma_unpopulate);
@@ -994,8 +1001,6 @@ EXPORT_SYMBOL_GPL(ttm_dma_unpopulate);
*
* XXX: (dchinner) Deadlock warning!
*
- * We need to pass sc->gfp_mask to ttm_dma_page_pool_free().
- *
* I'm getting sadder as I hear more pathetical whimpers about needing per-pool
* shrinkers
*/
@@ -1028,8 +1033,8 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
if (++idx < pool_offset)
continue;
nr_free = shrink_pages;
- shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free,
- sc->gfp_mask);
+ /* OK to use static buffer since global mutex is held. */
+ shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free, true);
freed += nr_free - shrink_pages;
pr_debug("%s: (%s:%d) Asked to shrink %d, have %d more to go\n",
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 440b814046fb..68e45146e27f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1070,8 +1070,12 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
vmaster = vmw_master_check(dev, file_priv, flags);
if (unlikely(IS_ERR(vmaster))) {
- DRM_INFO("IOCTL ERROR %d\n", nr);
- return PTR_ERR(vmaster);
+ ret = PTR_ERR(vmaster);
+
+ if (ret != -ERESTARTSYS)
+ DRM_INFO("IOCTL ERROR Command %d, Error %ld.\n",
+ nr, ret);
+ return ret;
}
ret = ioctl_func(filp, cmd, arg);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index 436b013b4231..b65272d7ea56 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1049,6 +1049,8 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv,
if (ret != 0)
goto out_no_queue;
+ return 0;
+
out_no_queue:
event->base.destroy(&event->base);
out_no_event:
@@ -1124,17 +1126,10 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
BUG_ON(fence == NULL);
- if (arg->flags & DRM_VMW_FE_FLAG_REQ_TIME)
- ret = vmw_event_fence_action_create(file_priv, fence,
- arg->flags,
- arg->user_data,
- true);
- else
- ret = vmw_event_fence_action_create(file_priv, fence,
- arg->flags,
- arg->user_data,
- true);
-
+ ret = vmw_event_fence_action_create(file_priv, fence,
+ arg->flags,
+ arg->user_data,
+ true);
if (unlikely(ret != 0)) {
if (ret != -ERESTARTSYS)
DRM_ERROR("Failed to attach event to fence.\n");
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ddd2acb8a091..ab9d3da01930 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -299,6 +299,8 @@
#define USB_VENDOR_ID_ELAN 0x04f3
#define USB_DEVICE_ID_ELAN_TOUCHSCREEN 0x0089
#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B 0x009b
+#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103 0x0103
+#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c 0x010c
#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F 0x016f
#define USB_VENDOR_ID_ELECOM 0x056e
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 21aafc8f48c8..9bce5bf4182d 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -137,6 +137,7 @@ struct i2c_hid {
* descriptor. */
unsigned int bufsize; /* i2c buffer size */
char *inbuf; /* Input buffer */
+ char *rawbuf; /* Raw Input buffer */
char *cmdbuf; /* Command buffer */
char *argsbuf; /* Command arguments buffer */
@@ -369,7 +370,7 @@ static int i2c_hid_hwreset(struct i2c_client *client)
static void i2c_hid_get_input(struct i2c_hid *ihid)
{
int ret, ret_size;
- int size = le16_to_cpu(ihid->hdesc.wMaxInputLength);
+ int size = ihid->bufsize;
ret = i2c_master_recv(ihid->client, ihid->inbuf, size);
if (ret != size) {
@@ -504,9 +505,11 @@ static void i2c_hid_find_max_report(struct hid_device *hid, unsigned int type,
static void i2c_hid_free_buffers(struct i2c_hid *ihid)
{
kfree(ihid->inbuf);
+ kfree(ihid->rawbuf);
kfree(ihid->argsbuf);
kfree(ihid->cmdbuf);
ihid->inbuf = NULL;
+ ihid->rawbuf = NULL;
ihid->cmdbuf = NULL;
ihid->argsbuf = NULL;
ihid->bufsize = 0;
@@ -522,10 +525,11 @@ static int i2c_hid_alloc_buffers(struct i2c_hid *ihid, size_t report_size)
report_size; /* report */
ihid->inbuf = kzalloc(report_size, GFP_KERNEL);
+ ihid->rawbuf = kzalloc(report_size, GFP_KERNEL);
ihid->argsbuf = kzalloc(args_len, GFP_KERNEL);
ihid->cmdbuf = kzalloc(sizeof(union command) + args_len, GFP_KERNEL);
- if (!ihid->inbuf || !ihid->argsbuf || !ihid->cmdbuf) {
+ if (!ihid->inbuf || !ihid->rawbuf || !ihid->argsbuf || !ihid->cmdbuf) {
i2c_hid_free_buffers(ihid);
return -ENOMEM;
}
@@ -552,12 +556,12 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
ret = i2c_hid_get_report(client,
report_type == HID_FEATURE_REPORT ? 0x03 : 0x01,
- report_number, ihid->inbuf, ask_count);
+ report_number, ihid->rawbuf, ask_count);
if (ret < 0)
return ret;
- ret_count = ihid->inbuf[0] | (ihid->inbuf[1] << 8);
+ ret_count = ihid->rawbuf[0] | (ihid->rawbuf[1] << 8);
if (ret_count <= 2)
return 0;
@@ -566,7 +570,7 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
/* The query buffer contains the size, dropping it in the reply */
count = min(count, ret_count - 2);
- memcpy(buf, ihid->inbuf + 2, count);
+ memcpy(buf, ihid->rawbuf + 2, count);
return count;
}
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 29d2590b033f..7f16acb84f90 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -72,6 +72,8 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
+ { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
+ { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index ed9350d42764..75330b3e388e 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -216,9 +216,16 @@ static void vmbus_process_rescind_offer(struct work_struct *work)
unsigned long flags;
struct vmbus_channel *primary_channel;
struct vmbus_channel_relid_released msg;
+ struct device *dev;
+
+ if (channel->device_obj) {
+ dev = get_device(&channel->device_obj->device);
+ if (dev) {
+ vmbus_device_unregister(channel->device_obj);
+ put_device(dev);
+ }
+ }
- if (channel->device_obj)
- vmbus_device_unregister(channel->device_obj);
memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
msg.child_relid = channel->offermsg.child_relid;
msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index e21e206d94e7..1de570e61305 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -30,12 +30,12 @@
#define MV64XXX_I2C_BAUD_DIV_N(val) (val & 0x7)
#define MV64XXX_I2C_BAUD_DIV_M(val) ((val & 0xf) << 3)
-#define MV64XXX_I2C_REG_CONTROL_ACK 0x00000004
-#define MV64XXX_I2C_REG_CONTROL_IFLG 0x00000008
-#define MV64XXX_I2C_REG_CONTROL_STOP 0x00000010
-#define MV64XXX_I2C_REG_CONTROL_START 0x00000020
-#define MV64XXX_I2C_REG_CONTROL_TWSIEN 0x00000040
-#define MV64XXX_I2C_REG_CONTROL_INTEN 0x00000080
+#define MV64XXX_I2C_REG_CONTROL_ACK BIT(2)
+#define MV64XXX_I2C_REG_CONTROL_IFLG BIT(3)
+#define MV64XXX_I2C_REG_CONTROL_STOP BIT(4)
+#define MV64XXX_I2C_REG_CONTROL_START BIT(5)
+#define MV64XXX_I2C_REG_CONTROL_TWSIEN BIT(6)
+#define MV64XXX_I2C_REG_CONTROL_INTEN BIT(7)
/* Ctlr status values */
#define MV64XXX_I2C_STATUS_BUS_ERR 0x00
@@ -68,19 +68,17 @@
#define MV64XXX_I2C_REG_BRIDGE_TIMING 0xe0
/* Bridge Control values */
-#define MV64XXX_I2C_BRIDGE_CONTROL_WR 0x00000001
-#define MV64XXX_I2C_BRIDGE_CONTROL_RD 0x00000002
+#define MV64XXX_I2C_BRIDGE_CONTROL_WR BIT(0)
+#define MV64XXX_I2C_BRIDGE_CONTROL_RD BIT(1)
#define MV64XXX_I2C_BRIDGE_CONTROL_ADDR_SHIFT 2
-#define MV64XXX_I2C_BRIDGE_CONTROL_ADDR_EXT 0x00001000
+#define MV64XXX_I2C_BRIDGE_CONTROL_ADDR_EXT BIT(12)
#define MV64XXX_I2C_BRIDGE_CONTROL_TX_SIZE_SHIFT 13
#define MV64XXX_I2C_BRIDGE_CONTROL_RX_SIZE_SHIFT 16
-#define MV64XXX_I2C_BRIDGE_CONTROL_ENABLE 0x00080000
+#define MV64XXX_I2C_BRIDGE_CONTROL_ENABLE BIT(19)
+#define MV64XXX_I2C_BRIDGE_CONTROL_REPEATED_START BIT(20)
/* Bridge Status values */
-#define MV64XXX_I2C_BRIDGE_STATUS_ERROR 0x00000001
-#define MV64XXX_I2C_STATUS_OFFLOAD_ERROR 0xf0000001
-#define MV64XXX_I2C_STATUS_OFFLOAD_OK 0xf0000000
-
+#define MV64XXX_I2C_BRIDGE_STATUS_ERROR BIT(0)
/* Driver states */
enum {
@@ -99,14 +97,12 @@ enum {
MV64XXX_I2C_ACTION_INVALID,
MV64XXX_I2C_ACTION_CONTINUE,
MV64XXX_I2C_ACTION_SEND_RESTART,
- MV64XXX_I2C_ACTION_OFFLOAD_RESTART,
MV64XXX_I2C_ACTION_SEND_ADDR_1,
MV64XXX_I2C_ACTION_SEND_ADDR_2,
MV64XXX_I2C_ACTION_SEND_DATA,
MV64XXX_I2C_ACTION_RCV_DATA,
MV64XXX_I2C_ACTION_RCV_DATA_STOP,
MV64XXX_I2C_ACTION_SEND_STOP,
- MV64XXX_I2C_ACTION_OFFLOAD_SEND_STOP,
};
struct mv64xxx_i2c_regs {
@@ -193,75 +189,6 @@ mv64xxx_i2c_prepare_for_io(struct mv64xxx_i2c_data *drv_data,
}
}
-static int mv64xxx_i2c_offload_msg(struct mv64xxx_i2c_data *drv_data)
-{
- unsigned long data_reg_hi = 0;
- unsigned long data_reg_lo = 0;
- unsigned long ctrl_reg;
- struct i2c_msg *msg = drv_data->msgs;
-
- if (!drv_data->offload_enabled)
- return -EOPNOTSUPP;
-
- /* Only regular transactions can be offloaded */
- if ((msg->flags & ~(I2C_M_TEN | I2C_M_RD)) != 0)
- return -EINVAL;
-
- /* Only 1-8 byte transfers can be offloaded */
- if (msg->len < 1 || msg->len > 8)
- return -EINVAL;
-
- /* Build transaction */
- ctrl_reg = MV64XXX_I2C_BRIDGE_CONTROL_ENABLE |
- (msg->addr << MV64XXX_I2C_BRIDGE_CONTROL_ADDR_SHIFT);
-
- if ((msg->flags & I2C_M_TEN) != 0)
- ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_ADDR_EXT;
-
- if ((msg->flags & I2C_M_RD) == 0) {
- u8 local_buf[8] = { 0 };
-
- memcpy(local_buf, msg->buf, msg->len);
- data_reg_lo = cpu_to_le32(*((u32 *)local_buf));
- data_reg_hi = cpu_to_le32(*((u32 *)(local_buf+4)));
-
- ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_WR |
- (msg->len - 1) << MV64XXX_I2C_BRIDGE_CONTROL_TX_SIZE_SHIFT;
-
- writel(data_reg_lo,
- drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_LO);
- writel(data_reg_hi,
- drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_HI);
-
- } else {
- ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_RD |
- (msg->len - 1) << MV64XXX_I2C_BRIDGE_CONTROL_RX_SIZE_SHIFT;
- }
-
- /* Execute transaction */
- writel(ctrl_reg, drv_data->reg_base + MV64XXX_I2C_REG_BRIDGE_CONTROL);
-
- return 0;
-}
-
-static void
-mv64xxx_i2c_update_offload_data(struct mv64xxx_i2c_data *drv_data)
-{
- struct i2c_msg *msg = drv_data->msg;
-
- if (msg->flags & I2C_M_RD) {
- u32 data_reg_lo = readl(drv_data->reg_base +
- MV64XXX_I2C_REG_RX_DATA_LO);
- u32 data_reg_hi = readl(drv_data->reg_base +
- MV64XXX_I2C_REG_RX_DATA_HI);
- u8 local_buf[8] = { 0 };
-
- *((u32 *)local_buf) = le32_to_cpu(data_reg_lo);
- *((u32 *)(local_buf+4)) = le32_to_cpu(data_reg_hi);
- memcpy(msg->buf, local_buf, msg->len);
- }
-
-}
/*
*****************************************************************************
*
@@ -389,16 +316,6 @@ mv64xxx_i2c_fsm(struct mv64xxx_i2c_data *drv_data, u32 status)
drv_data->rc = -ENXIO;
break;
- case MV64XXX_I2C_STATUS_OFFLOAD_OK:
- if (drv_data->send_stop || drv_data->aborting) {
- drv_data->action = MV64XXX_I2C_ACTION_OFFLOAD_SEND_STOP;
- drv_data->state = MV64XXX_I2C_STATE_IDLE;
- } else {
- drv_data->action = MV64XXX_I2C_ACTION_OFFLOAD_RESTART;
- drv_data->state = MV64XXX_I2C_STATE_WAITING_FOR_RESTART;
- }
- break;
-
default:
dev_err(&drv_data->adapter.dev,
"mv64xxx_i2c_fsm: Ctlr Error -- state: 0x%x, "
@@ -419,25 +336,15 @@ static void mv64xxx_i2c_send_start(struct mv64xxx_i2c_data *drv_data)
drv_data->aborting = 0;
drv_data->rc = 0;
- /* Can we offload this msg ? */
- if (mv64xxx_i2c_offload_msg(drv_data) < 0) {
- /* No, switch to standard path */
- mv64xxx_i2c_prepare_for_io(drv_data, drv_data->msgs);
- writel(drv_data->cntl_bits | MV64XXX_I2C_REG_CONTROL_START,
- drv_data->reg_base + drv_data->reg_offsets.control);
- }
+ mv64xxx_i2c_prepare_for_io(drv_data, drv_data->msgs);
+ writel(drv_data->cntl_bits | MV64XXX_I2C_REG_CONTROL_START,
+ drv_data->reg_base + drv_data->reg_offsets.control);
}
static void
mv64xxx_i2c_do_action(struct mv64xxx_i2c_data *drv_data)
{
switch(drv_data->action) {
- case MV64XXX_I2C_ACTION_OFFLOAD_RESTART:
- mv64xxx_i2c_update_offload_data(drv_data);
- writel(0, drv_data->reg_base + MV64XXX_I2C_REG_BRIDGE_CONTROL);
- writel(0, drv_data->reg_base +
- MV64XXX_I2C_REG_BRIDGE_INTR_CAUSE);
- /* FALLTHRU */
case MV64XXX_I2C_ACTION_SEND_RESTART:
/* We should only get here if we have further messages */
BUG_ON(drv_data->num_msgs == 0);
@@ -518,16 +425,71 @@ mv64xxx_i2c_do_action(struct mv64xxx_i2c_data *drv_data)
drv_data->block = 0;
wake_up(&drv_data->waitq);
break;
+ }
+}
- case MV64XXX_I2C_ACTION_OFFLOAD_SEND_STOP:
- mv64xxx_i2c_update_offload_data(drv_data);
- writel(0, drv_data->reg_base + MV64XXX_I2C_REG_BRIDGE_CONTROL);
- writel(0, drv_data->reg_base +
- MV64XXX_I2C_REG_BRIDGE_INTR_CAUSE);
- drv_data->block = 0;
- wake_up(&drv_data->waitq);
- break;
+static void
+mv64xxx_i2c_read_offload_rx_data(struct mv64xxx_i2c_data *drv_data,
+ struct i2c_msg *msg)
+{
+ u32 buf[2];
+
+ buf[0] = readl(drv_data->reg_base + MV64XXX_I2C_REG_RX_DATA_LO);
+ buf[1] = readl(drv_data->reg_base + MV64XXX_I2C_REG_RX_DATA_HI);
+
+ memcpy(msg->buf, buf, msg->len);
+}
+
+static int
+mv64xxx_i2c_intr_offload(struct mv64xxx_i2c_data *drv_data)
+{
+ u32 cause, status;
+
+ cause = readl(drv_data->reg_base +
+ MV64XXX_I2C_REG_BRIDGE_INTR_CAUSE);
+ if (!cause)
+ return IRQ_NONE;
+
+ status = readl(drv_data->reg_base +
+ MV64XXX_I2C_REG_BRIDGE_STATUS);
+
+ if (status & MV64XXX_I2C_BRIDGE_STATUS_ERROR) {
+ drv_data->rc = -EIO;
+ goto out;
+ }
+
+ drv_data->rc = 0;
+
+ /*
+ * Transaction is a one message read transaction, read data
+ * for this message.
+ */
+ if (drv_data->num_msgs == 1 && drv_data->msgs[0].flags & I2C_M_RD) {
+ mv64xxx_i2c_read_offload_rx_data(drv_data, drv_data->msgs);
+ drv_data->msgs++;
+ drv_data->num_msgs--;
+ }
+ /*
+ * Transaction is a two messages write/read transaction, read
+ * data for the second (read) message.
+ */
+ else if (drv_data->num_msgs == 2 &&
+ !(drv_data->msgs[0].flags & I2C_M_RD) &&
+ drv_data->msgs[1].flags & I2C_M_RD) {
+ mv64xxx_i2c_read_offload_rx_data(drv_data, drv_data->msgs + 1);
+ drv_data->msgs += 2;
+ drv_data->num_msgs -= 2;
}
+
+out:
+ writel(0, drv_data->reg_base + MV64XXX_I2C_REG_BRIDGE_CONTROL);
+ writel(0, drv_data->reg_base +
+ MV64XXX_I2C_REG_BRIDGE_INTR_CAUSE);
+ drv_data->block = 0;
+
+ wake_up(&drv_data->waitq);
+
+ return IRQ_HANDLED;
}
static irqreturn_t
@@ -540,20 +502,9 @@ mv64xxx_i2c_intr(int irq, void *dev_id)
spin_lock_irqsave(&drv_data->lock, flags);
- if (drv_data->offload_enabled) {
- while (readl(drv_data->reg_base +
- MV64XXX_I2C_REG_BRIDGE_INTR_CAUSE)) {
- int reg_status = readl(drv_data->reg_base +
- MV64XXX_I2C_REG_BRIDGE_STATUS);
- if (reg_status & MV64XXX_I2C_BRIDGE_STATUS_ERROR)
- status = MV64XXX_I2C_STATUS_OFFLOAD_ERROR;
- else
- status = MV64XXX_I2C_STATUS_OFFLOAD_OK;
- mv64xxx_i2c_fsm(drv_data, status);
- mv64xxx_i2c_do_action(drv_data);
- rc = IRQ_HANDLED;
- }
- }
+ if (drv_data->offload_enabled)
+ rc = mv64xxx_i2c_intr_offload(drv_data);
+
while (readl(drv_data->reg_base + drv_data->reg_offsets.control) &
MV64XXX_I2C_REG_CONTROL_IFLG) {
status = readl(drv_data->reg_base + drv_data->reg_offsets.status);
@@ -635,6 +586,117 @@ mv64xxx_i2c_execute_msg(struct mv64xxx_i2c_data *drv_data, struct i2c_msg *msg,
return drv_data->rc;
}
+static void
+mv64xxx_i2c_prepare_tx(struct mv64xxx_i2c_data *drv_data)
+{
+ struct i2c_msg *msg = drv_data->msgs;
+ u32 buf[2];
+
+ memcpy(buf, msg->buf, msg->len);
+
+ writel(buf[0], drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_LO);
+ writel(buf[1], drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_HI);
+}
+
+static int
+mv64xxx_i2c_offload_xfer(struct mv64xxx_i2c_data *drv_data)
+{
+ struct i2c_msg *msgs = drv_data->msgs;
+ int num = drv_data->num_msgs;
+ unsigned long ctrl_reg;
+ unsigned long flags;
+
+ spin_lock_irqsave(&drv_data->lock, flags);
+
+ /* Build transaction */
+ ctrl_reg = MV64XXX_I2C_BRIDGE_CONTROL_ENABLE |
+ (msgs[0].addr << MV64XXX_I2C_BRIDGE_CONTROL_ADDR_SHIFT);
+
+ if (msgs[0].flags & I2C_M_TEN)
+ ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_ADDR_EXT;
+
+ /* Single write message transaction */
+ if (num == 1 && !(msgs[0].flags & I2C_M_RD)) {
+ size_t len = msgs[0].len - 1;
+
+ ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_WR |
+ (len << MV64XXX_I2C_BRIDGE_CONTROL_TX_SIZE_SHIFT);
+ mv64xxx_i2c_prepare_tx(drv_data);
+ }
+ /* Single read message transaction */
+ else if (num == 1 && msgs[0].flags & I2C_M_RD) {
+ size_t len = msgs[0].len - 1;
+
+ ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_RD |
+ (len << MV64XXX_I2C_BRIDGE_CONTROL_RX_SIZE_SHIFT);
+ }
+ /*
+ * Transaction with one write and one read message. This is
+ * guaranteed by the mv64xx_i2c_can_offload() checks.
+ */
+ else if (num == 2) {
+ size_t lentx = msgs[0].len - 1;
+ size_t lenrx = msgs[1].len - 1;
+
+ ctrl_reg |=
+ MV64XXX_I2C_BRIDGE_CONTROL_RD |
+ MV64XXX_I2C_BRIDGE_CONTROL_WR |
+ (lentx << MV64XXX_I2C_BRIDGE_CONTROL_TX_SIZE_SHIFT) |
+ (lenrx << MV64XXX_I2C_BRIDGE_CONTROL_RX_SIZE_SHIFT) |
+ MV64XXX_I2C_BRIDGE_CONTROL_REPEATED_START;
+ mv64xxx_i2c_prepare_tx(drv_data);
+ }
+
+ /* Execute transaction */
+ drv_data->block = 1;
+ writel(ctrl_reg, drv_data->reg_base + MV64XXX_I2C_REG_BRIDGE_CONTROL);
+ spin_unlock_irqrestore(&drv_data->lock, flags);
+
+ mv64xxx_i2c_wait_for_completion(drv_data);
+
+ return drv_data->rc;
+}
+
+static bool
+mv64xxx_i2c_valid_offload_sz(struct i2c_msg *msg)
+{
+ return msg->len <= 8 && msg->len >= 1;
+}
+
+static bool
+mv64xxx_i2c_can_offload(struct mv64xxx_i2c_data *drv_data)
+{
+ struct i2c_msg *msgs = drv_data->msgs;
+ int num = drv_data->num_msgs;
+
+ return false;
+
+ if (!drv_data->offload_enabled)
+ return false;
+
+ /*
+ * We can offload a transaction consisting of a single
+ * message, as long as the message has a length between 1 and
+ * 8 bytes.
+ */
+ if (num == 1 && mv64xxx_i2c_valid_offload_sz(msgs))
+ return true;
+
+ /*
+ * We can offload a transaction consisting of two messages, if
+ * the first is a write and a second is a read, and both have
+ * a length between 1 and 8 bytes.
+ */
+ if (num == 2 &&
+ mv64xxx_i2c_valid_offload_sz(msgs) &&
+ mv64xxx_i2c_valid_offload_sz(msgs + 1) &&
+ !(msgs[0].flags & I2C_M_RD) &&
+ msgs[1].flags & I2C_M_RD)
+ return true;
+
+ return false;
+}
+
/*
*****************************************************************************
*
@@ -658,7 +720,11 @@ mv64xxx_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
drv_data->msgs = msgs;
drv_data->num_msgs = num;
- rc = mv64xxx_i2c_execute_msg(drv_data, &msgs[0], num == 1);
+ if (mv64xxx_i2c_can_offload(drv_data))
+ rc = mv64xxx_i2c_offload_xfer(drv_data);
+ else
+ rc = mv64xxx_i2c_execute_msg(drv_data, &msgs[0], num == 1);
+
if (rc < 0)
ret = rc;
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index c83b77e4546f..3a36b8bbca33 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -41,6 +41,7 @@ static DEFINE_MUTEX(device_list_mutex);
static LIST_HEAD(device_list);
static struct workqueue_struct *isert_rx_wq;
static struct workqueue_struct *isert_comp_wq;
+static struct workqueue_struct *isert_release_wq;
static void
isert_unmap_cmd(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn);
@@ -54,6 +55,19 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct isert_rdma_wr *wr);
static int
isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd);
+static int
+isert_rdma_post_recvl(struct isert_conn *isert_conn);
+static int
+isert_rdma_accept(struct isert_conn *isert_conn);
+struct rdma_cm_id *isert_setup_id(struct isert_np *isert_np);
+
+static inline bool
+isert_prot_cmd(struct isert_conn *conn, struct se_cmd *cmd)
+{
+ return (conn->pi_support &&
+ cmd->prot_op != TARGET_PROT_NORMAL);
+}
+
static void
isert_qp_event_callback(struct ib_event *e, void *context)
@@ -90,8 +104,7 @@ isert_query_device(struct ib_device *ib_dev, struct ib_device_attr *devattr)
}
static int
-isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id,
- u8 protection)
+isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id)
{
struct isert_device *device = isert_conn->conn_device;
struct ib_qp_init_attr attr;
@@ -126,7 +139,7 @@ isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id,
attr.cap.max_recv_sge = 1;
attr.sq_sig_type = IB_SIGNAL_REQ_WR;
attr.qp_type = IB_QPT_RC;
- if (protection)
+ if (device->pi_capable)
attr.create_flags |= IB_QP_CREATE_SIGNATURE_EN;
pr_debug("isert_conn_setup_qp cma_id->device: %p\n",
@@ -137,12 +150,18 @@ isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id,
ret = rdma_create_qp(cma_id, isert_conn->conn_pd, &attr);
if (ret) {
pr_err("rdma_create_qp failed for cma_id %d\n", ret);
- return ret;
+ goto err;
}
isert_conn->conn_qp = cma_id->qp;
pr_debug("rdma_create_qp() returned success >>>>>>>>>>>>>>>>>>>>>>>>>.\n");
return 0;
+err:
+ mutex_lock(&device_list_mutex);
+ device->cq_active_qps[min_index]--;
+ mutex_unlock(&device_list_mutex);
+
+ return ret;
}
static void
@@ -430,8 +449,68 @@ isert_conn_free_fastreg_pool(struct isert_conn *isert_conn)
}
static int
+isert_create_pi_ctx(struct fast_reg_descriptor *desc,
+ struct ib_device *device,
+ struct ib_pd *pd)
+{
+ struct ib_mr_init_attr mr_init_attr;
+ struct pi_context *pi_ctx;
+ int ret;
+
+ pi_ctx = kzalloc(sizeof(*desc->pi_ctx), GFP_KERNEL);
+ if (!pi_ctx) {
+ pr_err("Failed to allocate pi context\n");
+ return -ENOMEM;
+ }
+
+ pi_ctx->prot_frpl = ib_alloc_fast_reg_page_list(device,
+ ISCSI_ISER_SG_TABLESIZE);
+ if (IS_ERR(pi_ctx->prot_frpl)) {
+ pr_err("Failed to allocate prot frpl err=%ld\n",
+ PTR_ERR(pi_ctx->prot_frpl));
+ ret = PTR_ERR(pi_ctx->prot_frpl);
+ goto err_pi_ctx;
+ }
+
+ pi_ctx->prot_mr = ib_alloc_fast_reg_mr(pd, ISCSI_ISER_SG_TABLESIZE);
+ if (IS_ERR(pi_ctx->prot_mr)) {
+ pr_err("Failed to allocate prot frmr err=%ld\n",
+ PTR_ERR(pi_ctx->prot_mr));
+ ret = PTR_ERR(pi_ctx->prot_mr);
+ goto err_prot_frpl;
+ }
+ desc->ind |= ISERT_PROT_KEY_VALID;
+
+ memset(&mr_init_attr, 0, sizeof(mr_init_attr));
+ mr_init_attr.max_reg_descriptors = 2;
+ mr_init_attr.flags |= IB_MR_SIGNATURE_EN;
+ pi_ctx->sig_mr = ib_create_mr(pd, &mr_init_attr);
+ if (IS_ERR(pi_ctx->sig_mr)) {
+ pr_err("Failed to allocate signature enabled mr err=%ld\n",
+ PTR_ERR(pi_ctx->sig_mr));
+ ret = PTR_ERR(pi_ctx->sig_mr);
+ goto err_prot_mr;
+ }
+
+ desc->pi_ctx = pi_ctx;
+ desc->ind |= ISERT_SIG_KEY_VALID;
+ desc->ind &= ~ISERT_PROTECTED;
+
+ return 0;
+
+err_prot_mr:
+ ib_dereg_mr(desc->pi_ctx->prot_mr);
+err_prot_frpl:
+ ib_free_fast_reg_page_list(desc->pi_ctx->prot_frpl);
+err_pi_ctx:
+ kfree(desc->pi_ctx);
+
+ return ret;
+}
+
+static int
isert_create_fr_desc(struct ib_device *ib_device, struct ib_pd *pd,
- struct fast_reg_descriptor *fr_desc, u8 protection)
+ struct fast_reg_descriptor *fr_desc)
{
int ret;
@@ -450,62 +529,12 @@ isert_create_fr_desc(struct ib_device *ib_device, struct ib_pd *pd,
ret = PTR_ERR(fr_desc->data_mr);
goto err_data_frpl;
}
- pr_debug("Create fr_desc %p page_list %p\n",
- fr_desc, fr_desc->data_frpl->page_list);
fr_desc->ind |= ISERT_DATA_KEY_VALID;
- if (protection) {
- struct ib_mr_init_attr mr_init_attr = {0};
- struct pi_context *pi_ctx;
-
- fr_desc->pi_ctx = kzalloc(sizeof(*fr_desc->pi_ctx), GFP_KERNEL);
- if (!fr_desc->pi_ctx) {
- pr_err("Failed to allocate pi context\n");
- ret = -ENOMEM;
- goto err_data_mr;
- }
- pi_ctx = fr_desc->pi_ctx;
-
- pi_ctx->prot_frpl = ib_alloc_fast_reg_page_list(ib_device,
- ISCSI_ISER_SG_TABLESIZE);
- if (IS_ERR(pi_ctx->prot_frpl)) {
- pr_err("Failed to allocate prot frpl err=%ld\n",
- PTR_ERR(pi_ctx->prot_frpl));
- ret = PTR_ERR(pi_ctx->prot_frpl);
- goto err_pi_ctx;
- }
-
- pi_ctx->prot_mr = ib_alloc_fast_reg_mr(pd, ISCSI_ISER_SG_TABLESIZE);
- if (IS_ERR(pi_ctx->prot_mr)) {
- pr_err("Failed to allocate prot frmr err=%ld\n",
- PTR_ERR(pi_ctx->prot_mr));
- ret = PTR_ERR(pi_ctx->prot_mr);
- goto err_prot_frpl;
- }
- fr_desc->ind |= ISERT_PROT_KEY_VALID;
-
- mr_init_attr.max_reg_descriptors = 2;
- mr_init_attr.flags |= IB_MR_SIGNATURE_EN;
- pi_ctx->sig_mr = ib_create_mr(pd, &mr_init_attr);
- if (IS_ERR(pi_ctx->sig_mr)) {
- pr_err("Failed to allocate signature enabled mr err=%ld\n",
- PTR_ERR(pi_ctx->sig_mr));
- ret = PTR_ERR(pi_ctx->sig_mr);
- goto err_prot_mr;
- }
- fr_desc->ind |= ISERT_SIG_KEY_VALID;
- }
- fr_desc->ind &= ~ISERT_PROTECTED;
+ pr_debug("Created fr_desc %p\n", fr_desc);
return 0;
-err_prot_mr:
- ib_dereg_mr(fr_desc->pi_ctx->prot_mr);
-err_prot_frpl:
- ib_free_fast_reg_page_list(fr_desc->pi_ctx->prot_frpl);
-err_pi_ctx:
- kfree(fr_desc->pi_ctx);
-err_data_mr:
- ib_dereg_mr(fr_desc->data_mr);
+
err_data_frpl:
ib_free_fast_reg_page_list(fr_desc->data_frpl);
@@ -513,7 +542,7 @@ err_data_frpl:
}
static int
-isert_conn_create_fastreg_pool(struct isert_conn *isert_conn, u8 pi_support)
+isert_conn_create_fastreg_pool(struct isert_conn *isert_conn)
{
struct fast_reg_descriptor *fr_desc;
struct isert_device *device = isert_conn->conn_device;
@@ -537,8 +566,7 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn, u8 pi_support)
}
ret = isert_create_fr_desc(device->ib_device,
- isert_conn->conn_pd, fr_desc,
- pi_support);
+ isert_conn->conn_pd, fr_desc);
if (ret) {
pr_err("Failed to create fastreg descriptor err=%d\n",
ret);
@@ -563,13 +591,12 @@ err:
static int
isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
{
- struct iscsi_np *np = cma_id->context;
- struct isert_np *isert_np = np->np_context;
+ struct isert_np *isert_np = cma_id->context;
+ struct iscsi_np *np = isert_np->np;
struct isert_conn *isert_conn;
struct isert_device *device;
struct ib_device *ib_dev = cma_id->device;
int ret = 0;
- u8 pi_support;
spin_lock_bh(&np->np_thread_lock);
if (!np->enabled) {
@@ -590,6 +617,7 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
isert_conn->state = ISER_CONN_INIT;
INIT_LIST_HEAD(&isert_conn->conn_accept_node);
init_completion(&isert_conn->conn_login_comp);
+ init_completion(&isert_conn->login_req_comp);
init_completion(&isert_conn->conn_wait);
init_completion(&isert_conn->conn_wait_comp_err);
kref_init(&isert_conn->conn_kref);
@@ -597,7 +625,6 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
spin_lock_init(&isert_conn->conn_lock);
INIT_LIST_HEAD(&isert_conn->conn_fr_pool);
- cma_id->context = isert_conn;
isert_conn->conn_cm_id = cma_id;
isert_conn->responder_resources = event->param.conn.responder_resources;
isert_conn->initiator_depth = event->param.conn.initiator_depth;
@@ -667,15 +694,15 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
goto out_mr;
}
- pi_support = np->tpg_np->tpg->tpg_attrib.t10_pi;
- if (pi_support && !device->pi_capable) {
- pr_err("Protection information requested but not supported, "
- "rejecting connect request\n");
- ret = rdma_reject(cma_id, NULL, 0);
- goto out_mr;
- }
+ ret = isert_conn_setup_qp(isert_conn, cma_id);
+ if (ret)
+ goto out_conn_dev;
- ret = isert_conn_setup_qp(isert_conn, cma_id, pi_support);
+ ret = isert_rdma_post_recvl(isert_conn);
+ if (ret)
+ goto out_conn_dev;
+
+ ret = isert_rdma_accept(isert_conn);
if (ret)
goto out_conn_dev;
@@ -703,6 +730,7 @@ out_login_buf:
kfree(isert_conn->login_buf);
out:
kfree(isert_conn);
+ rdma_reject(cma_id, NULL, 0);
return ret;
}
@@ -718,18 +746,20 @@ isert_connect_release(struct isert_conn *isert_conn)
if (device && device->use_fastreg)
isert_conn_free_fastreg_pool(isert_conn);
+ isert_free_rx_descriptors(isert_conn);
+ rdma_destroy_id(isert_conn->conn_cm_id);
+
if (isert_conn->conn_qp) {
cq_index = ((struct isert_cq_desc *)
isert_conn->conn_qp->recv_cq->cq_context)->cq_index;
pr_debug("isert_connect_release: cq_index: %d\n", cq_index);
+ mutex_lock(&device_list_mutex);
isert_conn->conn_device->cq_active_qps[cq_index]--;
+ mutex_unlock(&device_list_mutex);
- rdma_destroy_qp(isert_conn->conn_cm_id);
+ ib_destroy_qp(isert_conn->conn_qp);
}
- isert_free_rx_descriptors(isert_conn);
- rdma_destroy_id(isert_conn->conn_cm_id);
-
ib_dereg_mr(isert_conn->conn_mr);
ib_dealloc_pd(isert_conn->conn_pd);
@@ -752,9 +782,19 @@ isert_connect_release(struct isert_conn *isert_conn)
static void
isert_connected_handler(struct rdma_cm_id *cma_id)
{
- struct isert_conn *isert_conn = cma_id->context;
+ struct isert_conn *isert_conn = cma_id->qp->qp_context;
+
+ pr_info("conn %p\n", isert_conn);
- kref_get(&isert_conn->conn_kref);
+ if (!kref_get_unless_zero(&isert_conn->conn_kref)) {
+ pr_warn("conn %p connect_release is running\n", isert_conn);
+ return;
+ }
+
+ mutex_lock(&isert_conn->conn_mutex);
+ if (isert_conn->state != ISER_CONN_FULL_FEATURE)
+ isert_conn->state = ISER_CONN_UP;
+ mutex_unlock(&isert_conn->conn_mutex);
}
static void
@@ -775,65 +815,108 @@ isert_put_conn(struct isert_conn *isert_conn)
kref_put(&isert_conn->conn_kref, isert_release_conn_kref);
}
+/**
+ * isert_conn_terminate() - Initiate connection termination
+ * @isert_conn: isert connection struct
+ *
+ * Notes:
+ * In case the connection state is FULL_FEATURE, move state
+ * to TEMINATING and start teardown sequence (rdma_disconnect).
+ * In case the connection state is UP, complete flush as well.
+ *
+ * This routine must be called with conn_mutex held. Thus it is
+ * safe to call multiple times.
+ */
static void
-isert_disconnect_work(struct work_struct *work)
+isert_conn_terminate(struct isert_conn *isert_conn)
{
- struct isert_conn *isert_conn = container_of(work,
- struct isert_conn, conn_logout_work);
+ int err;
- pr_debug("isert_disconnect_work(): >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
- mutex_lock(&isert_conn->conn_mutex);
- if (isert_conn->state == ISER_CONN_UP)
+ switch (isert_conn->state) {
+ case ISER_CONN_TERMINATING:
+ break;
+ case ISER_CONN_UP:
+ /*
+ * No flush completions will occur as we didn't
+ * get to ISER_CONN_FULL_FEATURE yet, complete
+ * to allow teardown progress.
+ */
+ complete(&isert_conn->conn_wait_comp_err);
+ case ISER_CONN_FULL_FEATURE: /* FALLTHRU */
+ pr_info("Terminating conn %p state %d\n",
+ isert_conn, isert_conn->state);
isert_conn->state = ISER_CONN_TERMINATING;
-
- if (isert_conn->post_recv_buf_count == 0 &&
- atomic_read(&isert_conn->post_send_buf_count) == 0) {
- mutex_unlock(&isert_conn->conn_mutex);
- goto wake_up;
- }
- if (!isert_conn->conn_cm_id) {
- mutex_unlock(&isert_conn->conn_mutex);
- isert_put_conn(isert_conn);
- return;
+ err = rdma_disconnect(isert_conn->conn_cm_id);
+ if (err)
+ pr_warn("Failed rdma_disconnect isert_conn %p\n",
+ isert_conn);
+ break;
+ default:
+ pr_warn("conn %p teminating in state %d\n",
+ isert_conn, isert_conn->state);
}
+}
- if (isert_conn->disconnect) {
- /* Send DREQ/DREP towards our initiator */
- rdma_disconnect(isert_conn->conn_cm_id);
- }
+static int
+isert_np_cma_handler(struct isert_np *isert_np,
+ enum rdma_cm_event_type event)
+{
+ pr_debug("isert np %p, handling event %d\n", isert_np, event);
- mutex_unlock(&isert_conn->conn_mutex);
+ switch (event) {
+ case RDMA_CM_EVENT_DEVICE_REMOVAL:
+ isert_np->np_cm_id = NULL;
+ break;
+ case RDMA_CM_EVENT_ADDR_CHANGE:
+ isert_np->np_cm_id = isert_setup_id(isert_np);
+ if (IS_ERR(isert_np->np_cm_id)) {
+ pr_err("isert np %p setup id failed: %ld\n",
+ isert_np, PTR_ERR(isert_np->np_cm_id));
+ isert_np->np_cm_id = NULL;
+ }
+ break;
+ default:
+ pr_err("isert np %p Unexpected event %d\n",
+ isert_np, event);
+ }
-wake_up:
- complete(&isert_conn->conn_wait);
+ return -1;
}
static int
-isert_disconnected_handler(struct rdma_cm_id *cma_id, bool disconnect)
+isert_disconnected_handler(struct rdma_cm_id *cma_id,
+ enum rdma_cm_event_type event)
{
+ struct isert_np *isert_np = cma_id->context;
struct isert_conn *isert_conn;
- if (!cma_id->qp) {
- struct isert_np *isert_np = cma_id->context;
+ if (isert_np->np_cm_id == cma_id)
+ return isert_np_cma_handler(cma_id->context, event);
- isert_np->np_cm_id = NULL;
- return -1;
- }
+ isert_conn = cma_id->qp->qp_context;
- isert_conn = (struct isert_conn *)cma_id->context;
+ mutex_lock(&isert_conn->conn_mutex);
+ isert_conn_terminate(isert_conn);
+ mutex_unlock(&isert_conn->conn_mutex);
- isert_conn->disconnect = disconnect;
- INIT_WORK(&isert_conn->conn_logout_work, isert_disconnect_work);
- schedule_work(&isert_conn->conn_logout_work);
+ pr_info("conn %p completing conn_wait\n", isert_conn);
+ complete(&isert_conn->conn_wait);
return 0;
}
+static void
+isert_connect_error(struct rdma_cm_id *cma_id)
+{
+ struct isert_conn *isert_conn = cma_id->qp->qp_context;
+
+ isert_put_conn(isert_conn);
+}
+
static int
isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
{
int ret = 0;
- bool disconnect = false;
pr_debug("isert_cma_handler: event %d status %d conn %p id %p\n",
event->event, event->status, cma_id->context, cma_id);
@@ -851,11 +934,14 @@ isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
case RDMA_CM_EVENT_ADDR_CHANGE: /* FALLTHRU */
case RDMA_CM_EVENT_DISCONNECTED: /* FALLTHRU */
case RDMA_CM_EVENT_DEVICE_REMOVAL: /* FALLTHRU */
- disconnect = true;
case RDMA_CM_EVENT_TIMEWAIT_EXIT: /* FALLTHRU */
- ret = isert_disconnected_handler(cma_id, disconnect);
+ ret = isert_disconnected_handler(cma_id, event->event);
break;
+ case RDMA_CM_EVENT_REJECTED: /* FALLTHRU */
+ case RDMA_CM_EVENT_UNREACHABLE: /* FALLTHRU */
case RDMA_CM_EVENT_CONNECT_ERROR:
+ isert_connect_error(cma_id);
+ break;
default:
pr_err("Unhandled RDMA CMA event: %d\n", event->event);
break;
@@ -989,7 +1075,7 @@ isert_init_send_wr(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
* bit for every ISERT_COMP_BATCH_COUNT number of ib_post_send() calls.
*/
mutex_lock(&isert_conn->conn_mutex);
- if (coalesce && isert_conn->state == ISER_CONN_UP &&
+ if (coalesce && isert_conn->state == ISER_CONN_FULL_FEATURE &&
++isert_conn->conn_comp_batch < ISERT_COMP_BATCH_COUNT) {
tx_desc->llnode_active = true;
llist_add(&tx_desc->comp_llnode, &isert_conn->conn_comp_llist);
@@ -1070,11 +1156,7 @@ isert_put_login_tx(struct iscsi_conn *conn, struct iscsi_login *login,
if (login->login_complete) {
if (!conn->sess->sess_ops->SessionType &&
isert_conn->conn_device->use_fastreg) {
- /* Normal Session and fastreg is used */
- u8 pi_support = login->np->tpg_np->tpg->tpg_attrib.t10_pi;
-
- ret = isert_conn_create_fastreg_pool(isert_conn,
- pi_support);
+ ret = isert_conn_create_fastreg_pool(isert_conn);
if (ret) {
pr_err("Conn: %p failed to create"
" fastreg pool\n", isert_conn);
@@ -1090,7 +1172,10 @@ isert_put_login_tx(struct iscsi_conn *conn, struct iscsi_login *login,
if (ret)
return ret;
- isert_conn->state = ISER_CONN_UP;
+ /* Now we are in FULL_FEATURE phase */
+ mutex_lock(&isert_conn->conn_mutex);
+ isert_conn->state = ISER_CONN_FULL_FEATURE;
+ mutex_unlock(&isert_conn->conn_mutex);
goto post_send;
}
@@ -1107,18 +1192,17 @@ post_send:
}
static void
-isert_rx_login_req(struct iser_rx_desc *rx_desc, int rx_buflen,
- struct isert_conn *isert_conn)
+isert_rx_login_req(struct isert_conn *isert_conn)
{
+ struct iser_rx_desc *rx_desc = (void *)isert_conn->login_req_buf;
+ int rx_buflen = isert_conn->login_req_len;
struct iscsi_conn *conn = isert_conn->conn;
struct iscsi_login *login = conn->conn_login;
int size;
- if (!login) {
- pr_err("conn->conn_login is NULL\n");
- dump_stack();
- return;
- }
+ pr_info("conn %p\n", isert_conn);
+
+ WARN_ON_ONCE(!login);
if (login->first_request) {
struct iscsi_login_req *login_req =
@@ -1481,11 +1565,20 @@ isert_rx_completion(struct iser_rx_desc *desc, struct isert_conn *isert_conn,
hdr->opcode, hdr->itt, hdr->flags,
(int)(xfer_len - ISER_HEADERS_LEN));
- if ((char *)desc == isert_conn->login_req_buf)
- isert_rx_login_req(desc, xfer_len - ISER_HEADERS_LEN,
- isert_conn);
- else
+ if ((char *)desc == isert_conn->login_req_buf) {
+ isert_conn->login_req_len = xfer_len - ISER_HEADERS_LEN;
+ if (isert_conn->conn) {
+ struct iscsi_login *login = isert_conn->conn->conn_login;
+
+ if (login && !login->first_request)
+ isert_rx_login_req(isert_conn);
+ }
+ mutex_lock(&isert_conn->conn_mutex);
+ complete(&isert_conn->login_req_comp);
+ mutex_unlock(&isert_conn->conn_mutex);
+ } else {
isert_rx_do_work(desc, isert_conn);
+ }
ib_dma_sync_single_for_device(ib_dev, rx_dma, rx_buflen,
DMA_FROM_DEVICE);
@@ -2044,7 +2137,7 @@ isert_cq_rx_comp_err(struct isert_conn *isert_conn)
msleep(3000);
mutex_lock(&isert_conn->conn_mutex);
- isert_conn->state = ISER_CONN_DOWN;
+ isert_conn_terminate(isert_conn);
mutex_unlock(&isert_conn->conn_mutex);
iscsit_cause_connection_reinstatement(isert_conn->conn, 0);
@@ -2229,8 +2322,16 @@ isert_get_sup_prot_ops(struct iscsi_conn *conn)
struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
struct isert_device *device = isert_conn->conn_device;
- if (device->pi_capable)
- return TARGET_PROT_ALL;
+ if (conn->tpg->tpg_attrib.t10_pi) {
+ if (device->pi_capable) {
+ pr_info("conn %p PI offload enabled\n", isert_conn);
+ isert_conn->pi_support = true;
+ return TARGET_PROT_ALL;
+ }
+ }
+
+ pr_info("conn %p PI offload disabled\n", isert_conn);
+ isert_conn->pi_support = false;
return TARGET_PROT_NORMAL;
}
@@ -2692,10 +2793,10 @@ isert_set_prot_checks(u8 prot_checks)
}
static int
-isert_reg_sig_mr(struct isert_conn *isert_conn, struct se_cmd *se_cmd,
- struct fast_reg_descriptor *fr_desc,
- struct ib_sge *data_sge, struct ib_sge *prot_sge,
- struct ib_sge *sig_sge)
+isert_reg_sig_mr(struct isert_conn *isert_conn,
+ struct se_cmd *se_cmd,
+ struct isert_rdma_wr *rdma_wr,
+ struct fast_reg_descriptor *fr_desc)
{
struct ib_send_wr sig_wr, inv_wr;
struct ib_send_wr *bad_wr, *wr = NULL;
@@ -2725,13 +2826,13 @@ isert_reg_sig_mr(struct isert_conn *isert_conn, struct se_cmd *se_cmd,
memset(&sig_wr, 0, sizeof(sig_wr));
sig_wr.opcode = IB_WR_REG_SIG_MR;
sig_wr.wr_id = ISER_FASTREG_LI_WRID;
- sig_wr.sg_list = data_sge;
+ sig_wr.sg_list = &rdma_wr->ib_sg[DATA];
sig_wr.num_sge = 1;
sig_wr.wr.sig_handover.access_flags = IB_ACCESS_LOCAL_WRITE;
sig_wr.wr.sig_handover.sig_attrs = &sig_attrs;
sig_wr.wr.sig_handover.sig_mr = pi_ctx->sig_mr;
if (se_cmd->t_prot_sg)
- sig_wr.wr.sig_handover.prot = prot_sge;
+ sig_wr.wr.sig_handover.prot = &rdma_wr->ib_sg[PROT];
if (!wr)
wr = &sig_wr;
@@ -2745,34 +2846,93 @@ isert_reg_sig_mr(struct isert_conn *isert_conn, struct se_cmd *se_cmd,
}
fr_desc->ind &= ~ISERT_SIG_KEY_VALID;
- sig_sge->lkey = pi_ctx->sig_mr->lkey;
- sig_sge->addr = 0;
- sig_sge->length = se_cmd->data_length;
+ rdma_wr->ib_sg[SIG].lkey = pi_ctx->sig_mr->lkey;
+ rdma_wr->ib_sg[SIG].addr = 0;
+ rdma_wr->ib_sg[SIG].length = se_cmd->data_length;
if (se_cmd->prot_op != TARGET_PROT_DIN_STRIP &&
se_cmd->prot_op != TARGET_PROT_DOUT_INSERT)
/*
* We have protection guards on the wire
* so we need to set a larget transfer
*/
- sig_sge->length += se_cmd->prot_length;
+ rdma_wr->ib_sg[SIG].length += se_cmd->prot_length;
pr_debug("sig_sge: addr: 0x%llx length: %u lkey: %x\n",
- sig_sge->addr, sig_sge->length,
- sig_sge->lkey);
+ rdma_wr->ib_sg[SIG].addr, rdma_wr->ib_sg[SIG].length,
+ rdma_wr->ib_sg[SIG].lkey);
err:
return ret;
}
static int
+isert_handle_prot_cmd(struct isert_conn *isert_conn,
+ struct isert_cmd *isert_cmd,
+ struct isert_rdma_wr *wr)
+{
+ struct isert_device *device = isert_conn->conn_device;
+ struct se_cmd *se_cmd = &isert_cmd->iscsi_cmd->se_cmd;
+ int ret;
+
+ if (!wr->fr_desc->pi_ctx) {
+ ret = isert_create_pi_ctx(wr->fr_desc,
+ device->ib_device,
+ isert_conn->conn_pd);
+ if (ret) {
+ pr_err("conn %p failed to allocate pi_ctx\n",
+ isert_conn);
+ return ret;
+ }
+ }
+
+ if (se_cmd->t_prot_sg) {
+ ret = isert_map_data_buf(isert_conn, isert_cmd,
+ se_cmd->t_prot_sg,
+ se_cmd->t_prot_nents,
+ se_cmd->prot_length,
+ 0, wr->iser_ib_op, &wr->prot);
+ if (ret) {
+ pr_err("conn %p failed to map protection buffer\n",
+ isert_conn);
+ return ret;
+ }
+
+ memset(&wr->ib_sg[PROT], 0, sizeof(wr->ib_sg[PROT]));
+ ret = isert_fast_reg_mr(isert_conn, wr->fr_desc, &wr->prot,
+ ISERT_PROT_KEY_VALID, &wr->ib_sg[PROT]);
+ if (ret) {
+ pr_err("conn %p failed to fast reg mr\n",
+ isert_conn);
+ goto unmap_prot_cmd;
+ }
+ }
+
+ ret = isert_reg_sig_mr(isert_conn, se_cmd, wr, wr->fr_desc);
+ if (ret) {
+ pr_err("conn %p failed to fast reg mr\n",
+ isert_conn);
+ goto unmap_prot_cmd;
+ }
+ wr->fr_desc->ind |= ISERT_PROTECTED;
+
+ return 0;
+
+unmap_prot_cmd:
+ if (se_cmd->t_prot_sg)
+ isert_unmap_data_buf(isert_conn, &wr->prot);
+
+ return ret;
+}
+
+static int
isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct isert_rdma_wr *wr)
{
struct se_cmd *se_cmd = &cmd->se_cmd;
struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
struct isert_conn *isert_conn = conn->context;
- struct ib_sge data_sge;
- struct ib_send_wr *send_wr;
struct fast_reg_descriptor *fr_desc = NULL;
+ struct ib_send_wr *send_wr;
+ struct ib_sge *ib_sg;
u32 offset;
int ret = 0;
unsigned long flags;
@@ -2786,8 +2946,7 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
if (ret)
return ret;
- if (wr->data.dma_nents != 1 ||
- se_cmd->prot_op != TARGET_PROT_NORMAL) {
+ if (wr->data.dma_nents != 1 || isert_prot_cmd(isert_conn, se_cmd)) {
spin_lock_irqsave(&isert_conn->conn_lock, flags);
fr_desc = list_first_entry(&isert_conn->conn_fr_pool,
struct fast_reg_descriptor, list);
@@ -2797,38 +2956,21 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
}
ret = isert_fast_reg_mr(isert_conn, fr_desc, &wr->data,
- ISERT_DATA_KEY_VALID, &data_sge);
+ ISERT_DATA_KEY_VALID, &wr->ib_sg[DATA]);
if (ret)
goto unmap_cmd;
- if (se_cmd->prot_op != TARGET_PROT_NORMAL) {
- struct ib_sge prot_sge, sig_sge;
-
- if (se_cmd->t_prot_sg) {
- ret = isert_map_data_buf(isert_conn, isert_cmd,
- se_cmd->t_prot_sg,
- se_cmd->t_prot_nents,
- se_cmd->prot_length,
- 0, wr->iser_ib_op, &wr->prot);
- if (ret)
- goto unmap_cmd;
-
- ret = isert_fast_reg_mr(isert_conn, fr_desc, &wr->prot,
- ISERT_PROT_KEY_VALID, &prot_sge);
- if (ret)
- goto unmap_prot_cmd;
- }
-
- ret = isert_reg_sig_mr(isert_conn, se_cmd, fr_desc,
- &data_sge, &prot_sge, &sig_sge);
+ if (isert_prot_cmd(isert_conn, se_cmd)) {
+ ret = isert_handle_prot_cmd(isert_conn, isert_cmd, wr);
if (ret)
- goto unmap_prot_cmd;
+ goto unmap_cmd;
- fr_desc->ind |= ISERT_PROTECTED;
- memcpy(&wr->s_ib_sge, &sig_sge, sizeof(sig_sge));
- } else
- memcpy(&wr->s_ib_sge, &data_sge, sizeof(data_sge));
+ ib_sg = &wr->ib_sg[SIG];
+ } else {
+ ib_sg = &wr->ib_sg[DATA];
+ }
+ memcpy(&wr->s_ib_sge, ib_sg, sizeof(*ib_sg));
wr->ib_sge = &wr->s_ib_sge;
wr->send_wr_num = 1;
memset(&wr->s_send_wr, 0, sizeof(*send_wr));
@@ -2843,7 +2985,7 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
send_wr->opcode = IB_WR_RDMA_WRITE;
send_wr->wr.rdma.remote_addr = isert_cmd->read_va;
send_wr->wr.rdma.rkey = isert_cmd->read_stag;
- send_wr->send_flags = se_cmd->prot_op == TARGET_PROT_NORMAL ?
+ send_wr->send_flags = !isert_prot_cmd(isert_conn, se_cmd) ?
0 : IB_SEND_SIGNALED;
} else {
send_wr->opcode = IB_WR_RDMA_READ;
@@ -2853,9 +2995,7 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
}
return 0;
-unmap_prot_cmd:
- if (se_cmd->t_prot_sg)
- isert_unmap_data_buf(isert_conn, &wr->prot);
+
unmap_cmd:
if (fr_desc) {
spin_lock_irqsave(&isert_conn->conn_lock, flags);
@@ -2887,7 +3027,7 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
return rc;
}
- if (se_cmd->prot_op == TARGET_PROT_NORMAL) {
+ if (!isert_prot_cmd(isert_conn, se_cmd)) {
/*
* Build isert_conn->tx_desc for iSCSI response PDU and attach
*/
@@ -2910,7 +3050,7 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
atomic_sub(wr->send_wr_num, &isert_conn->post_send_buf_count);
}
- if (se_cmd->prot_op == TARGET_PROT_NORMAL)
+ if (!isert_prot_cmd(isert_conn, se_cmd))
pr_debug("Cmd: %p posted RDMA_WRITE + Response for iSER Data "
"READ\n", isert_cmd);
else
@@ -3012,13 +3152,51 @@ isert_response_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state)
return ret;
}
+struct rdma_cm_id *
+isert_setup_id(struct isert_np *isert_np)
+{
+ struct iscsi_np *np = isert_np->np;
+ struct rdma_cm_id *id;
+ struct sockaddr *sa;
+ int ret;
+
+ sa = (struct sockaddr *)&np->np_sockaddr;
+ pr_debug("ksockaddr: %p, sa: %p\n", &np->np_sockaddr, sa);
+
+ id = rdma_create_id(isert_cma_handler, isert_np,
+ RDMA_PS_TCP, IB_QPT_RC);
+ if (IS_ERR(id)) {
+ pr_err("rdma_create_id() failed: %ld\n", PTR_ERR(id));
+ ret = PTR_ERR(id);
+ goto out;
+ }
+ pr_debug("id %p context %p\n", id, id->context);
+
+ ret = rdma_bind_addr(id, sa);
+ if (ret) {
+ pr_err("rdma_bind_addr() failed: %d\n", ret);
+ goto out_id;
+ }
+
+ ret = rdma_listen(id, ISERT_RDMA_LISTEN_BACKLOG);
+ if (ret) {
+ pr_err("rdma_listen() failed: %d\n", ret);
+ goto out_id;
+ }
+
+ return id;
+out_id:
+ rdma_destroy_id(id);
+out:
+ return ERR_PTR(ret);
+}
+
static int
isert_setup_np(struct iscsi_np *np,
struct __kernel_sockaddr_storage *ksockaddr)
{
struct isert_np *isert_np;
struct rdma_cm_id *isert_lid;
- struct sockaddr *sa;
int ret;
isert_np = kzalloc(sizeof(struct isert_np), GFP_KERNEL);
@@ -3030,9 +3208,8 @@ isert_setup_np(struct iscsi_np *np,
mutex_init(&isert_np->np_accept_mutex);
INIT_LIST_HEAD(&isert_np->np_accept_list);
init_completion(&isert_np->np_login_comp);
+ isert_np->np = np;
- sa = (struct sockaddr *)ksockaddr;
- pr_debug("ksockaddr: %p, sa: %p\n", ksockaddr, sa);
/*
* Setup the np->np_sockaddr from the passed sockaddr setup
* in iscsi_target_configfs.c code..
@@ -3040,37 +3217,20 @@ isert_setup_np(struct iscsi_np *np,
memcpy(&np->np_sockaddr, ksockaddr,
sizeof(struct __kernel_sockaddr_storage));
- isert_lid = rdma_create_id(isert_cma_handler, np, RDMA_PS_TCP,
- IB_QPT_RC);
+ isert_lid = isert_setup_id(isert_np);
if (IS_ERR(isert_lid)) {
- pr_err("rdma_create_id() for isert_listen_handler failed: %ld\n",
- PTR_ERR(isert_lid));
ret = PTR_ERR(isert_lid);
goto out;
}
- ret = rdma_bind_addr(isert_lid, sa);
- if (ret) {
- pr_err("rdma_bind_addr() for isert_lid failed: %d\n", ret);
- goto out_lid;
- }
-
- ret = rdma_listen(isert_lid, ISERT_RDMA_LISTEN_BACKLOG);
- if (ret) {
- pr_err("rdma_listen() for isert_lid failed: %d\n", ret);
- goto out_lid;
- }
-
isert_np->np_cm_id = isert_lid;
np->np_context = isert_np;
- pr_debug("Setup isert_lid->context: %p\n", isert_lid->context);
return 0;
-out_lid:
- rdma_destroy_id(isert_lid);
out:
kfree(isert_np);
+
return ret;
}
@@ -3106,7 +3266,15 @@ isert_get_login_rx(struct iscsi_conn *conn, struct iscsi_login *login)
struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
int ret;
- pr_debug("isert_get_login_rx before conn_login_comp conn: %p\n", conn);
+ pr_info("before login_req comp conn: %p\n", isert_conn);
+ ret = wait_for_completion_interruptible(&isert_conn->login_req_comp);
+ if (ret) {
+ pr_err("isert_conn %p interrupted before got login req\n",
+ isert_conn);
+ return ret;
+ }
+ reinit_completion(&isert_conn->login_req_comp);
+
/*
* For login requests after the first PDU, isert_rx_login_req() will
* kick schedule_delayed_work(&conn->login_work) as the packet is
@@ -3116,11 +3284,15 @@ isert_get_login_rx(struct iscsi_conn *conn, struct iscsi_login *login)
if (!login->first_request)
return 0;
+ isert_rx_login_req(isert_conn);
+
+ pr_info("before conn_login_comp conn: %p\n", conn);
ret = wait_for_completion_interruptible(&isert_conn->conn_login_comp);
if (ret)
return ret;
- pr_debug("isert_get_login_rx processing login->req: %p\n", login->req);
+ pr_info("processing login->req: %p\n", login->req);
+
return 0;
}
@@ -3198,17 +3370,10 @@ accept_wait:
isert_conn->conn = conn;
max_accept = 0;
- ret = isert_rdma_post_recvl(isert_conn);
- if (ret)
- return ret;
-
- ret = isert_rdma_accept(isert_conn);
- if (ret)
- return ret;
-
isert_set_conn_info(np, conn, isert_conn);
- pr_debug("Processing isert_accept_np: isert_conn: %p\n", isert_conn);
+ pr_debug("Processing isert_conn: %p\n", isert_conn);
+
return 0;
}
@@ -3224,6 +3389,24 @@ isert_free_np(struct iscsi_np *np)
kfree(isert_np);
}
+static void isert_release_work(struct work_struct *work)
+{
+ struct isert_conn *isert_conn = container_of(work,
+ struct isert_conn,
+ release_work);
+
+ pr_info("Starting release conn %p\n", isert_conn);
+
+ wait_for_completion(&isert_conn->conn_wait);
+
+ mutex_lock(&isert_conn->conn_mutex);
+ isert_conn->state = ISER_CONN_DOWN;
+ mutex_unlock(&isert_conn->conn_mutex);
+
+ pr_info("Destroying conn %p\n", isert_conn);
+ isert_put_conn(isert_conn);
+}
+
static void isert_wait_conn(struct iscsi_conn *conn)
{
struct isert_conn *isert_conn = conn->context;
@@ -3231,10 +3414,6 @@ static void isert_wait_conn(struct iscsi_conn *conn)
pr_debug("isert_wait_conn: Starting \n");
mutex_lock(&isert_conn->conn_mutex);
- if (isert_conn->conn_cm_id) {
- pr_debug("Calling rdma_disconnect from isert_wait_conn\n");
- rdma_disconnect(isert_conn->conn_cm_id);
- }
/*
* Only wait for conn_wait_comp_err if the isert_conn made it
* into full feature phase..
@@ -3243,14 +3422,13 @@ static void isert_wait_conn(struct iscsi_conn *conn)
mutex_unlock(&isert_conn->conn_mutex);
return;
}
- if (isert_conn->state == ISER_CONN_UP)
- isert_conn->state = ISER_CONN_TERMINATING;
+ isert_conn_terminate(isert_conn);
mutex_unlock(&isert_conn->conn_mutex);
wait_for_completion(&isert_conn->conn_wait_comp_err);
- wait_for_completion(&isert_conn->conn_wait);
- isert_put_conn(isert_conn);
+ INIT_WORK(&isert_conn->release_work, isert_release_work);
+ queue_work(isert_release_wq, &isert_conn->release_work);
}
static void isert_free_conn(struct iscsi_conn *conn)
@@ -3298,10 +3476,21 @@ static int __init isert_init(void)
goto destroy_rx_wq;
}
+ isert_release_wq = alloc_workqueue("isert_release_wq", WQ_UNBOUND,
+ WQ_UNBOUND_MAX_ACTIVE);
+ if (!isert_release_wq) {
+ pr_err("Unable to allocate isert_release_wq\n");
+ ret = -ENOMEM;
+ goto destroy_comp_wq;
+ }
+
iscsit_register_transport(&iser_target_transport);
- pr_debug("iSER_TARGET[0] - Loaded iser_target_transport\n");
+ pr_info("iSER_TARGET[0] - Loaded iser_target_transport\n");
+
return 0;
+destroy_comp_wq:
+ destroy_workqueue(isert_comp_wq);
destroy_rx_wq:
destroy_workqueue(isert_rx_wq);
return ret;
@@ -3310,6 +3499,7 @@ destroy_rx_wq:
static void __exit isert_exit(void)
{
flush_scheduled_work();
+ destroy_workqueue(isert_release_wq);
destroy_workqueue(isert_comp_wq);
destroy_workqueue(isert_rx_wq);
iscsit_unregister_transport(&iser_target_transport);
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index 04f51f7bf614..141905f446dd 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -23,6 +23,7 @@ enum iser_ib_op_code {
enum iser_conn_state {
ISER_CONN_INIT,
ISER_CONN_UP,
+ ISER_CONN_FULL_FEATURE,
ISER_CONN_TERMINATING,
ISER_CONN_DOWN,
};
@@ -81,6 +82,12 @@ struct isert_data_buf {
enum dma_data_direction dma_dir;
};
+enum {
+ DATA = 0,
+ PROT = 1,
+ SIG = 2,
+};
+
struct isert_rdma_wr {
struct list_head wr_list;
struct isert_cmd *isert_cmd;
@@ -90,6 +97,7 @@ struct isert_rdma_wr {
int send_wr_num;
struct ib_send_wr *send_wr;
struct ib_send_wr s_send_wr;
+ struct ib_sge ib_sg[3];
struct isert_data_buf data;
struct isert_data_buf prot;
struct fast_reg_descriptor *fr_desc;
@@ -120,11 +128,13 @@ struct isert_conn {
atomic_t post_send_buf_count;
u32 responder_resources;
u32 initiator_depth;
+ bool pi_support;
u32 max_sge;
char *login_buf;
char *login_req_buf;
char *login_rsp_buf;
u64 login_req_dma;
+ int login_req_len;
u64 login_rsp_dma;
unsigned int conn_rx_desc_head;
struct iser_rx_desc *conn_rx_descs;
@@ -132,13 +142,13 @@ struct isert_conn {
struct iscsi_conn *conn;
struct list_head conn_accept_node;
struct completion conn_login_comp;
+ struct completion login_req_comp;
struct iser_tx_desc conn_login_tx_desc;
struct rdma_cm_id *conn_cm_id;
struct ib_pd *conn_pd;
struct ib_mr *conn_mr;
struct ib_qp *conn_qp;
struct isert_device *conn_device;
- struct work_struct conn_logout_work;
struct mutex conn_mutex;
struct completion conn_wait;
struct completion conn_wait_comp_err;
@@ -147,10 +157,10 @@ struct isert_conn {
int conn_fr_pool_size;
/* lock to protect fastreg pool */
spinlock_t conn_lock;
+ struct work_struct release_work;
#define ISERT_COMP_BATCH_COUNT 8
int conn_comp_batch;
struct llist_head conn_comp_llist;
- bool disconnect;
};
#define ISERT_MAX_CQ 64
@@ -182,6 +192,7 @@ struct isert_device {
};
struct isert_np {
+ struct iscsi_np *np;
struct semaphore np_sem;
struct rdma_cm_id *np_cm_id;
struct mutex np_accept_mutex;
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 382c1801a8f1..b36bd2886940 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1966,7 +1966,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
struct dma_pte *first_pte = NULL, *pte = NULL;
phys_addr_t uninitialized_var(pteval);
int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT;
- unsigned long sg_res;
+ unsigned long sg_res = 0;
unsigned int largepage_lvl = 0;
unsigned long lvl_pages = 0;
@@ -1977,10 +1977,8 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
prot &= DMA_PTE_READ | DMA_PTE_WRITE | DMA_PTE_SNP;
- if (sg)
- sg_res = 0;
- else {
- sg_res = nr_pages + 1;
+ if (!sg) {
+ sg_res = nr_pages;
pteval = ((phys_addr_t)phys_pfn << VTD_PAGE_SHIFT) | prot;
}
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 67f8b31e2054..da3604e73e8a 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -879,7 +879,6 @@ void bitmap_unplug(struct bitmap *bitmap)
{
unsigned long i;
int dirty, need_write;
- int wait = 0;
if (!bitmap || !bitmap->storage.filemap ||
test_bit(BITMAP_STALE, &bitmap->flags))
@@ -897,16 +896,13 @@ void bitmap_unplug(struct bitmap *bitmap)
clear_page_attr(bitmap, i, BITMAP_PAGE_PENDING);
write_page(bitmap, bitmap->storage.filemap[i], 0);
}
- if (dirty)
- wait = 1;
- }
- if (wait) { /* if any writes were performed, we need to wait on them */
- if (bitmap->storage.file)
- wait_event(bitmap->write_wait,
- atomic_read(&bitmap->pending_writes)==0);
- else
- md_super_wait(bitmap->mddev);
}
+ if (bitmap->storage.file)
+ wait_event(bitmap->write_wait,
+ atomic_read(&bitmap->pending_writes)==0);
+ else
+ md_super_wait(bitmap->mddev);
+
if (test_bit(BITMAP_WRITE_ERROR, &bitmap->flags))
bitmap_file_kick(bitmap);
}
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index fb5654da25a1..4d1edcf552bb 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -532,6 +532,19 @@ static void use_dmio(struct dm_buffer *b, int rw, sector_t block,
end_io(&b->bio, r);
}
+static void inline_endio(struct bio *bio, int error)
+{
+ bio_end_io_t *end_fn = bio->bi_private;
+
+ /*
+ * Reset the bio to free any attached resources
+ * (e.g. bio integrity profiles).
+ */
+ bio_reset(bio);
+
+ end_fn(bio, error);
+}
+
static void use_inline_bio(struct dm_buffer *b, int rw, sector_t block,
bio_end_io_t *end_io)
{
@@ -543,7 +556,12 @@ static void use_inline_bio(struct dm_buffer *b, int rw, sector_t block,
b->bio.bi_max_vecs = DM_BUFIO_INLINE_VECS;
b->bio.bi_iter.bi_sector = block << b->c->sectors_per_block_bits;
b->bio.bi_bdev = b->c->bdev;
- b->bio.bi_end_io = end_io;
+ b->bio.bi_end_io = inline_endio;
+ /*
+ * Use of .bi_private isn't a problem here because
+ * the dm_buffer's inline bio is local to bufio.
+ */
+ b->bio.bi_private = end_io;
/*
* We assume that if len >= PAGE_SIZE ptr is page-aligned.
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index c892e48655c2..e5308b8b4043 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -929,10 +929,14 @@ static void migration_success_post_commit(struct dm_cache_migration *mg)
}
} else {
- clear_dirty(cache, mg->new_oblock, mg->cblock);
- if (mg->requeue_holder)
+ if (mg->requeue_holder) {
+ clear_dirty(cache, mg->new_oblock, mg->cblock);
cell_defer(cache, mg->new_ocell, true);
- else {
+ } else {
+ /*
+ * The block was promoted via an overwrite, so it's dirty.
+ */
+ set_dirty(cache, mg->new_oblock, mg->cblock);
bio_endio(mg->new_ocell->holder, 0);
cell_defer(cache, mg->new_ocell, false);
}
@@ -1043,7 +1047,8 @@ static void issue_copy(struct dm_cache_migration *mg)
avoid = is_discarded_oblock(cache, mg->new_oblock);
- if (!avoid && bio_writes_complete_block(cache, bio)) {
+ if (writeback_mode(&cache->features) &&
+ !avoid && bio_writes_complete_block(cache, bio)) {
issue_overwrite(mg, bio);
return;
}
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 3e6ef4b1fb46..f87223056696 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -709,7 +709,7 @@ static int crypt_iv_tcw_whitening(struct crypt_config *cc,
for (i = 0; i < ((1 << SECTOR_SHIFT) / 8); i++)
crypto_xor(data + i * 8, buf, 8);
out:
- memset(buf, 0, sizeof(buf));
+ memzero_explicit(buf, sizeof(buf));
return r;
}
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index df898e0db419..408ffba7ec63 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -936,6 +936,24 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
}
}
+static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
+
+static void check_for_space(struct pool *pool)
+{
+ int r;
+ dm_block_t nr_free;
+
+ if (get_pool_mode(pool) != PM_OUT_OF_DATA_SPACE)
+ return;
+
+ r = dm_pool_get_free_block_count(pool->pmd, &nr_free);
+ if (r)
+ return;
+
+ if (nr_free)
+ set_pool_mode(pool, PM_WRITE);
+}
+
/*
* A non-zero return indicates read_only or fail_io mode.
* Many callers don't care about the return value.
@@ -950,6 +968,8 @@ static int commit(struct pool *pool)
r = dm_pool_commit_metadata(pool->pmd);
if (r)
metadata_operation_failed(pool, "dm_pool_commit_metadata", r);
+ else
+ check_for_space(pool);
return r;
}
@@ -968,8 +988,6 @@ static void check_low_water_mark(struct pool *pool, dm_block_t free_blocks)
}
}
-static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
-
static int alloc_data_block(struct thin_c *tc, dm_block_t *result)
{
int r;
@@ -1759,7 +1777,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
pool->process_bio = process_bio_read_only;
pool->process_discard = process_discard;
pool->process_prepared_mapping = process_prepared_mapping;
- pool->process_prepared_discard = process_prepared_discard_passdown;
+ pool->process_prepared_discard = process_prepared_discard;
if (!pool->pf.error_if_no_space && no_space_timeout)
queue_delayed_work(pool->wq, &pool->no_space_timeout, no_space_timeout);
@@ -3183,14 +3201,14 @@ static void thin_dtr(struct dm_target *ti)
struct thin_c *tc = ti->private;
unsigned long flags;
- thin_put(tc);
- wait_for_completion(&tc->can_destroy);
-
spin_lock_irqsave(&tc->pool->lock, flags);
list_del_rcu(&tc->list);
spin_unlock_irqrestore(&tc->pool->lock, flags);
synchronize_rcu();
+ thin_put(tc);
+ wait_for_completion(&tc->can_destroy);
+
mutex_lock(&dm_thin_pool_table.mutex);
__pool_dec(tc->pool);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 32b958dbc499..00a6cff2fffd 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -776,7 +776,7 @@ static void disable_write_same(struct mapped_device *md)
static void clone_endio(struct bio *bio, int error)
{
- int r = 0;
+ int r = error;
struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
struct dm_io *io = tio->io;
struct mapped_device *md = tio->io->md;
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 786b689bdfc7..f4e22bcc7fb8 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -564,7 +564,9 @@ static int sm_bootstrap_get_nr_blocks(struct dm_space_map *sm, dm_block_t *count
{
struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm);
- return smm->ll.nr_blocks;
+ *count = smm->ll.nr_blocks;
+
+ return 0;
}
static int sm_bootstrap_get_nr_free(struct dm_space_map *sm, dm_block_t *count)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9f0fbecd1eb5..222aa7521877 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2925,8 +2925,11 @@ static int fetch_block(struct stripe_head *sh, struct stripe_head_state *s,
(sh->raid_conf->level <= 5 && s->failed && fdev[0]->towrite &&
(!test_bit(R5_Insync, &dev->flags) || test_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) &&
!test_bit(R5_OVERWRITE, &fdev[0]->flags)) ||
- (sh->raid_conf->level == 6 && s->failed && s->to_write &&
- s->to_write - s->non_overwrite < sh->raid_conf->raid_disks - 2 &&
+ ((sh->raid_conf->level == 6 ||
+ sh->sector >= sh->raid_conf->mddev->recovery_cp)
+ && s->failed && s->to_write &&
+ (s->to_write - s->non_overwrite <
+ sh->raid_conf->raid_disks - sh->raid_conf->max_degraded) &&
(!test_bit(R5_Insync, &dev->flags) || test_bit(STRIPE_PREREAD_ACTIVE, &sh->state))))) {
/* we would like to get this block, possibly by computing it,
* otherwise read it if the backing disk is insync
diff --git a/drivers/media/i2c/smiapp-pll.c b/drivers/media/i2c/smiapp-pll.c
index 2335529b195c..ab5d9a3adebf 100644
--- a/drivers/media/i2c/smiapp-pll.c
+++ b/drivers/media/i2c/smiapp-pll.c
@@ -67,7 +67,7 @@ static void print_pll(struct device *dev, struct smiapp_pll *pll)
{
dev_dbg(dev, "pre_pll_clk_div\t%d\n", pll->pre_pll_clk_div);
dev_dbg(dev, "pll_multiplier \t%d\n", pll->pll_multiplier);
- if (pll->flags != SMIAPP_PLL_FLAG_NO_OP_CLOCKS) {
+ if (!(pll->flags & SMIAPP_PLL_FLAG_NO_OP_CLOCKS)) {
dev_dbg(dev, "op_sys_clk_div \t%d\n", pll->op_sys_clk_div);
dev_dbg(dev, "op_pix_clk_div \t%d\n", pll->op_pix_clk_div);
}
@@ -77,7 +77,7 @@ static void print_pll(struct device *dev, struct smiapp_pll *pll)
dev_dbg(dev, "ext_clk_freq_hz \t%d\n", pll->ext_clk_freq_hz);
dev_dbg(dev, "pll_ip_clk_freq_hz \t%d\n", pll->pll_ip_clk_freq_hz);
dev_dbg(dev, "pll_op_clk_freq_hz \t%d\n", pll->pll_op_clk_freq_hz);
- if (pll->flags & SMIAPP_PLL_FLAG_NO_OP_CLOCKS) {
+ if (!(pll->flags & SMIAPP_PLL_FLAG_NO_OP_CLOCKS)) {
dev_dbg(dev, "op_sys_clk_freq_hz \t%d\n",
pll->op_sys_clk_freq_hz);
dev_dbg(dev, "op_pix_clk_freq_hz \t%d\n",
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index 698219a9e538..4fff7756bb7f 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2625,7 +2625,9 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS;
pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN];
+ mutex_lock(&sensor->mutex);
rval = smiapp_update_mode(sensor);
+ mutex_unlock(&sensor->mutex);
if (rval) {
dev_err(&client->dev, "update mode failed\n");
goto out_nvm_release;
diff --git a/drivers/media/rc/img-ir/img-ir-hw.c b/drivers/media/rc/img-ir/img-ir-hw.c
index 0127dd257a57..cd1b7ac021b2 100644
--- a/drivers/media/rc/img-ir/img-ir-hw.c
+++ b/drivers/media/rc/img-ir/img-ir-hw.c
@@ -531,6 +531,22 @@ static void img_ir_set_decoder(struct img_ir_priv *priv,
u32 ir_status, irq_en;
spin_lock_irq(&priv->lock);
+ /*
+ * First record that the protocol is being stopped so that the end timer
+ * isn't restarted while we're trying to stop it.
+ */
+ hw->stopping = true;
+
+ /*
+ * Release the lock to stop the end timer, since the end timer handler
+ * acquires the lock and we don't want to deadlock waiting for it.
+ */
+ spin_unlock_irq(&priv->lock);
+ del_timer_sync(&hw->end_timer);
+ spin_lock_irq(&priv->lock);
+
+ hw->stopping = false;
+
/* switch off and disable interrupts */
img_ir_write(priv, IMG_IR_CONTROL, 0);
irq_en = img_ir_read(priv, IMG_IR_IRQ_ENABLE);
@@ -542,12 +558,13 @@ static void img_ir_set_decoder(struct img_ir_priv *priv,
if (ir_status & (IMG_IR_RXDVAL | IMG_IR_RXDVALD2)) {
ir_status &= ~(IMG_IR_RXDVAL | IMG_IR_RXDVALD2);
img_ir_write(priv, IMG_IR_STATUS, ir_status);
- img_ir_read(priv, IMG_IR_DATA_LW);
- img_ir_read(priv, IMG_IR_DATA_UP);
}
- /* stop the end timer and switch back to normal mode */
- del_timer_sync(&hw->end_timer);
+ /* always read data to clear buffer if IR wakes the device */
+ img_ir_read(priv, IMG_IR_DATA_LW);
+ img_ir_read(priv, IMG_IR_DATA_UP);
+
+ /* switch back to normal mode */
hw->mode = IMG_IR_M_NORMAL;
/* clear the wakeup scancode filter */
@@ -816,7 +833,8 @@ static void img_ir_handle_data(struct img_ir_priv *priv, u32 len, u64 raw)
}
- if (dec->repeat) {
+ /* we mustn't update the end timer while trying to stop it */
+ if (dec->repeat && !hw->stopping) {
unsigned long interval;
img_ir_begin_repeat(priv);
diff --git a/drivers/media/rc/img-ir/img-ir-hw.h b/drivers/media/rc/img-ir/img-ir-hw.h
index 6c9a94a81190..837843921344 100644
--- a/drivers/media/rc/img-ir/img-ir-hw.h
+++ b/drivers/media/rc/img-ir/img-ir-hw.h
@@ -202,6 +202,8 @@ enum img_ir_mode {
* @flags: IMG_IR_F_*.
* @filters: HW filters (derived from scancode filters).
* @mode: Current decode mode.
+ * @stopping: Indicates that decoder is being taken down and timers
+ * should not be restarted.
* @suspend_irqen: Saved IRQ enable mask over suspend.
*/
struct img_ir_priv_hw {
@@ -217,6 +219,7 @@ struct img_ir_priv_hw {
struct img_ir_filter filters[RC_FILTER_MAX];
enum img_ir_mode mode;
+ bool stopping;
u32 suspend_irqen;
};
diff --git a/drivers/media/usb/au0828/au0828-cards.c b/drivers/media/usb/au0828/au0828-cards.c
index 7fdadf9bc90b..fb3d2c57bae5 100644
--- a/drivers/media/usb/au0828/au0828-cards.c
+++ b/drivers/media/usb/au0828/au0828-cards.c
@@ -36,6 +36,11 @@ static void hvr950q_cs5340_audio(void *priv, int enable)
au0828_clear(dev, REG_000, 0x10);
}
+/*
+ * WARNING: There's a quirks table at sound/usb/quirks-table.h
+ * that should also be updated every time a new device with V4L2 support
+ * is added here.
+ */
struct au0828_board au0828_boards[] = {
[AU0828_BOARD_UNKNOWN] = {
.name = "Unknown board",
diff --git a/drivers/media/usb/dvb-usb/af9005.c b/drivers/media/usb/dvb-usb/af9005.c
index af176b6ce738..e6d3561eea47 100644
--- a/drivers/media/usb/dvb-usb/af9005.c
+++ b/drivers/media/usb/dvb-usb/af9005.c
@@ -1081,9 +1081,12 @@ static int __init af9005_usb_module_init(void)
err("usb_register failed. (%d)", result);
return result;
}
+#if IS_MODULE(CONFIG_DVB_USB_AF9005) || defined(CONFIG_DVB_USB_AF9005_REMOTE)
+ /* FIXME: convert to todays kernel IR infrastructure */
rc_decode = symbol_request(af9005_rc_decode);
rc_keys = symbol_request(rc_map_af9005_table);
rc_keys_size = symbol_request(rc_map_af9005_table_size);
+#endif
if (rc_decode == NULL || rc_keys == NULL || rc_keys_size == NULL) {
err("af9005_rc_decode function not found, disabling remote");
af9005_properties.rc.legacy.rc_query = NULL;
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index a2207f1a821b..0c2a2466fc36 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1623,12 +1623,12 @@ static void uvc_delete(struct uvc_device *dev)
{
struct list_head *p, *n;
- usb_put_intf(dev->intf);
- usb_put_dev(dev->udev);
-
uvc_status_cleanup(dev);
uvc_ctrl_cleanup_device(dev);
+ usb_put_intf(dev->intf);
+ usb_put_dev(dev->udev);
+
if (dev->vdev.dev)
v4l2_device_unregister(&dev->vdev);
#ifdef CONFIG_MEDIA_CONTROLLER
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 11c19e538551..48579e5ef02c 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -263,6 +263,17 @@ static int tc6393xb_ohci_disable(struct platform_device *dev)
return 0;
}
+static int tc6393xb_ohci_suspend(struct platform_device *dev)
+{
+ struct tc6393xb_platform_data *tcpd = dev_get_platdata(dev->dev.parent);
+
+ /* We can't properly store/restore OHCI state, so fail here */
+ if (tcpd->resume_restore)
+ return -EBUSY;
+
+ return tc6393xb_ohci_disable(dev);
+}
+
static int tc6393xb_fb_enable(struct platform_device *dev)
{
struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
@@ -403,7 +414,7 @@ static struct mfd_cell tc6393xb_cells[] = {
.num_resources = ARRAY_SIZE(tc6393xb_ohci_resources),
.resources = tc6393xb_ohci_resources,
.enable = tc6393xb_ohci_enable,
- .suspend = tc6393xb_ohci_disable,
+ .suspend = tc6393xb_ohci_suspend,
.resume = tc6393xb_ohci_enable,
.disable = tc6393xb_ohci_disable,
},
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 542f1a8247f5..33a35fbd48c9 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -828,6 +828,9 @@ static struct twl4030_power_data osc_off_idle = {
static struct of_device_id twl4030_power_of_match[] = {
{
+ .compatible = "ti,twl4030-power",
+ },
+ {
.compatible = "ti,twl4030-power-reset",
.data = &omap3_reset,
},
diff --git a/drivers/misc/genwqe/card_utils.c b/drivers/misc/genwqe/card_utils.c
index 62cc6bb3f62e..ded1c2507d3d 100644
--- a/drivers/misc/genwqe/card_utils.c
+++ b/drivers/misc/genwqe/card_utils.c
@@ -580,6 +580,8 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr,
m->nr_pages,
1, /* write by caller */
m->page_list); /* ptrs to pages */
+ if (rc < 0)
+ goto fail_get_user_pages;
/* assumption: get_user_pages can be killed by signals. */
if (rc < m->nr_pages) {
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 452782bffebc..b082b25ea9c4 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -260,7 +260,7 @@ static ssize_t force_ro_show(struct device *dev, struct device_attribute *attr,
int ret;
struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev));
- ret = snprintf(buf, PAGE_SIZE, "%d",
+ ret = snprintf(buf, PAGE_SIZE, "%d\n",
get_disk_ro(dev_to_disk(dev)) ^
md->read_only);
mmc_blk_put(md);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 1ac227c603b7..609f0ab6891f 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -625,6 +625,13 @@ static void dw_mci_ctrl_rd_thld(struct dw_mci *host, struct mmc_data *data)
WARN_ON(!(data->flags & MMC_DATA_READ));
+ /*
+ * CDTHRCTL doesn't exist prior to 240A (in fact that register offset is
+ * in the FIFO region, so we really shouldn't access it).
+ */
+ if (host->verid < DW_MMC_240A)
+ return;
+
if (host->timing != MMC_TIMING_MMC_HS200 &&
host->timing != MMC_TIMING_UHS_SDR104)
goto disable;
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 6b7b75585926..6c70a01b5c15 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -583,6 +583,7 @@ static void omap_hsmmc_set_clock(struct omap_hsmmc_host *host)
*/
if ((mmc_slot(host).features & HSMMC_HAS_HSPE_SUPPORT) &&
(ios->timing != MMC_TIMING_MMC_DDR52) &&
+ (ios->timing != MMC_TIMING_UHS_DDR50) &&
((OMAP_HSMMC_READ(host->base, CAPA) & HSS) == HSS)) {
regval = OMAP_HSMMC_READ(host->base, HCTL);
if (clkdiv && (clk_get_rate(host->fclk)/clkdiv) > 25000000)
@@ -602,7 +603,8 @@ static void omap_hsmmc_set_bus_width(struct omap_hsmmc_host *host)
u32 con;
con = OMAP_HSMMC_READ(host->base, CON);
- if (ios->timing == MMC_TIMING_MMC_DDR52)
+ if (ios->timing == MMC_TIMING_MMC_DDR52 ||
+ ios->timing == MMC_TIMING_UHS_DDR50)
con |= DDR; /* configure in DDR mode */
else
con &= ~DDR;
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
index 5670e381b0cf..e2ec108dba0e 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -127,8 +127,6 @@ void sdhci_pci_o2_fujin2_pci_init(struct sdhci_pci_chip *chip)
return;
scratch_32 &= ~((1 << 21) | (1 << 30));
- /* Set RTD3 function disabled */
- scratch_32 |= ((1 << 29) | (1 << 28));
pci_write_config_dword(chip->pdev, O2_SD_FUNC_REG3, scratch_32);
/* Set L1 Entrance Timer */
diff --git a/drivers/mtd/tests/torturetest.c b/drivers/mtd/tests/torturetest.c
index eeab96973cf0..b55bc52a1340 100644
--- a/drivers/mtd/tests/torturetest.c
+++ b/drivers/mtd/tests/torturetest.c
@@ -264,7 +264,9 @@ static int __init tort_init(void)
int i;
void *patt;
- mtdtest_erase_good_eraseblocks(mtd, bad_ebs, eb, ebcnt);
+ err = mtdtest_erase_good_eraseblocks(mtd, bad_ebs, eb, ebcnt);
+ if (err)
+ goto out;
/* Check if the eraseblocks contain only 0xFF bytes */
if (check) {
diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index ec2c2dc1c1ca..2a1b6e037e1a 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -133,6 +133,10 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol,
ubi_assert(!vol->updating && !vol->changing_leb);
vol->updating = 1;
+ vol->upd_buf = vmalloc(ubi->leb_size);
+ if (!vol->upd_buf)
+ return -ENOMEM;
+
err = set_update_marker(ubi, vol);
if (err)
return err;
@@ -152,14 +156,12 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol,
err = clear_update_marker(ubi, vol, 0);
if (err)
return err;
+
+ vfree(vol->upd_buf);
vol->updating = 0;
return 0;
}
- vol->upd_buf = vmalloc(ubi->leb_size);
- if (!vol->upd_buf)
- return -ENOMEM;
-
vol->upd_ebs = div_u64(bytes + vol->usable_leb_size - 1,
vol->usable_leb_size);
vol->upd_bytes = bytes;
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 0f3425dac910..89d51f94db11 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1211,7 +1211,6 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
err = do_sync_erase(ubi, e1, vol_id, lnum, 0);
if (err) {
- kmem_cache_free(ubi_wl_entry_slab, e1);
if (e2)
kmem_cache_free(ubi_wl_entry_slab, e2);
goto out_ro;
@@ -1225,10 +1224,8 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
dbg_wl("PEB %d (LEB %d:%d) was put meanwhile, erase",
e2->pnum, vol_id, lnum);
err = do_sync_erase(ubi, e2, vol_id, lnum, 0);
- if (err) {
- kmem_cache_free(ubi_wl_entry_slab, e2);
+ if (err)
goto out_ro;
- }
}
dbg_wl("done");
@@ -1264,10 +1261,9 @@ out_not_moved:
ubi_free_vid_hdr(ubi, vid_hdr);
err = do_sync_erase(ubi, e2, vol_id, lnum, torture);
- if (err) {
- kmem_cache_free(ubi_wl_entry_slab, e2);
+ if (err)
goto out_ro;
- }
+
mutex_unlock(&ubi->move_mutex);
return 0;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index 644e6ab8a489..dc807e10f802 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -735,7 +735,7 @@ static int peak_usb_create_dev(struct peak_usb_adapter *peak_usb_adapter,
dev->cmd_buf = kmalloc(PCAN_USB_MAX_CMD_LEN, GFP_KERNEL);
if (!dev->cmd_buf) {
err = -ENOMEM;
- goto lbl_set_intf_data;
+ goto lbl_free_candev;
}
dev->udev = usb_dev;
@@ -775,7 +775,7 @@ static int peak_usb_create_dev(struct peak_usb_adapter *peak_usb_adapter,
err = register_candev(netdev);
if (err) {
dev_err(&intf->dev, "couldn't register CAN device: %d\n", err);
- goto lbl_free_cmd_buf;
+ goto lbl_restore_intf_data;
}
if (dev->prev_siblings)
@@ -788,14 +788,14 @@ static int peak_usb_create_dev(struct peak_usb_adapter *peak_usb_adapter,
if (dev->adapter->dev_init) {
err = dev->adapter->dev_init(dev);
if (err)
- goto lbl_free_cmd_buf;
+ goto lbl_unregister_candev;
}
/* set bus off */
if (dev->adapter->dev_set_bus) {
err = dev->adapter->dev_set_bus(dev, 0);
if (err)
- goto lbl_free_cmd_buf;
+ goto lbl_unregister_candev;
}
/* get device number early */
@@ -807,11 +807,14 @@ static int peak_usb_create_dev(struct peak_usb_adapter *peak_usb_adapter,
return 0;
-lbl_free_cmd_buf:
- kfree(dev->cmd_buf);
+lbl_unregister_candev:
+ unregister_candev(netdev);
-lbl_set_intf_data:
+lbl_restore_intf_data:
usb_set_intfdata(intf, dev->prev_siblings);
+ kfree(dev->cmd_buf);
+
+lbl_free_candev:
free_candev(netdev);
return err;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index 263dd921edc4..f7f796a2c50b 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -333,8 +333,6 @@ static int pcan_usb_pro_send_req(struct peak_usb_device *dev, int req_id,
if (!(dev->state & PCAN_USB_STATE_CONNECTED))
return 0;
- memset(req_addr, '\0', req_size);
-
req_type = USB_TYPE_VENDOR | USB_RECIP_OTHER;
switch (req_id) {
@@ -345,6 +343,7 @@ static int pcan_usb_pro_send_req(struct peak_usb_device *dev, int req_id,
default:
p = usb_rcvctrlpipe(dev->udev, 0);
req_type |= USB_DIR_IN;
+ memset(req_addr, '\0', req_size);
break;
}
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 24c1bef7abc6..40bf8a87b3d9 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -618,10 +618,15 @@ static int vxlan_gro_complete(struct sk_buff *skb, int nhoff)
{
struct ethhdr *eh;
struct packet_offload *ptype;
+ struct udphdr *uh;
__be16 type;
int vxlan_len = sizeof(struct vxlanhdr) + sizeof(struct ethhdr);
int err = -ENOSYS;
+ uh = (struct udphdr *)(skb->data + nhoff - sizeof(struct udphdr));
+ skb_shinfo(skb)->gso_type |= uh->check ?
+ SKB_GSO_UDP_TUNNEL_CSUM : SKB_GSO_UDP_TUNNEL;
+
eh = (struct ethhdr *)(skb->data + nhoff + sizeof(struct vxlanhdr));
type = eh->h_proto;
diff --git a/drivers/net/wireless/ath/ath5k/qcu.c b/drivers/net/wireless/ath/ath5k/qcu.c
index 0583c69d26db..ddaad712c59a 100644
--- a/drivers/net/wireless/ath/ath5k/qcu.c
+++ b/drivers/net/wireless/ath/ath5k/qcu.c
@@ -225,13 +225,7 @@ ath5k_hw_setup_tx_queue(struct ath5k_hw *ah, enum ath5k_tx_queue queue_type,
} else {
switch (queue_type) {
case AR5K_TX_QUEUE_DATA:
- for (queue = AR5K_TX_QUEUE_ID_DATA_MIN;
- ah->ah_txq[queue].tqi_type !=
- AR5K_TX_QUEUE_INACTIVE; queue++) {
-
- if (queue > AR5K_TX_QUEUE_ID_DATA_MAX)
- return -EINVAL;
- }
+ queue = queue_info->tqi_subtype;
break;
case AR5K_TX_QUEUE_UAPSD:
queue = AR5K_TX_QUEUE_ID_UAPSD;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 0acd4b5a4892..32ae0a47fed0 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -216,8 +216,8 @@
#define AH_WOW_BEACON_MISS BIT(3)
enum ath_hw_txq_subtype {
- ATH_TXQ_AC_BE = 0,
- ATH_TXQ_AC_BK = 1,
+ ATH_TXQ_AC_BK = 0,
+ ATH_TXQ_AC_BE = 1,
ATH_TXQ_AC_VI = 2,
ATH_TXQ_AC_VO = 3,
};
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 275205ab5f15..3e58bfa0c1fd 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -311,14 +311,7 @@ int ath9k_hw_setuptxqueue(struct ath_hw *ah, enum ath9k_tx_queue type,
q = ATH9K_NUM_TX_QUEUES - 3;
break;
case ATH9K_TX_QUEUE_DATA:
- for (q = 0; q < ATH9K_NUM_TX_QUEUES; q++)
- if (ah->txq[q].tqi_type ==
- ATH9K_TX_QUEUE_INACTIVE)
- break;
- if (q == ATH9K_NUM_TX_QUEUES) {
- ath_err(common, "No available TX queue\n");
- return -1;
- }
+ q = qinfo->tqi_subtype;
break;
default:
ath_err(common, "Invalid TX queue type: %u\n", type);
diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index 7fd50428b934..9c67e255c689 100644
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -85,6 +85,16 @@ config IWLWIFI_BCAST_FILTERING
If unsure, don't enable this option, as some programs might
expect incoming broadcasts for their normal operations.
+config IWLWIFI_UAPSD
+ bool "enable U-APSD by default"
+ depends on IWLMVM
+ help
+ Say Y here to enable U-APSD by default. This may cause
+ interoperability problems with some APs, manifesting in lower than
+ expected throughput due to those APs not enabling aggregation
+
+ If unsure, say N.
+
menu "Debugging Options"
depends on IWLWIFI
diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h
index 751ae1d10b7f..7a34e4d158d1 100644
--- a/drivers/net/wireless/iwlwifi/dvm/commands.h
+++ b/drivers/net/wireless/iwlwifi/dvm/commands.h
@@ -966,21 +966,21 @@ struct iwl_rem_sta_cmd {
/* WiFi queues mask */
-#define IWL_SCD_BK_MSK cpu_to_le32(BIT(0))
-#define IWL_SCD_BE_MSK cpu_to_le32(BIT(1))
-#define IWL_SCD_VI_MSK cpu_to_le32(BIT(2))
-#define IWL_SCD_VO_MSK cpu_to_le32(BIT(3))
-#define IWL_SCD_MGMT_MSK cpu_to_le32(BIT(3))
+#define IWL_SCD_BK_MSK BIT(0)
+#define IWL_SCD_BE_MSK BIT(1)
+#define IWL_SCD_VI_MSK BIT(2)
+#define IWL_SCD_VO_MSK BIT(3)
+#define IWL_SCD_MGMT_MSK BIT(3)
/* PAN queues mask */
-#define IWL_PAN_SCD_BK_MSK cpu_to_le32(BIT(4))
-#define IWL_PAN_SCD_BE_MSK cpu_to_le32(BIT(5))
-#define IWL_PAN_SCD_VI_MSK cpu_to_le32(BIT(6))
-#define IWL_PAN_SCD_VO_MSK cpu_to_le32(BIT(7))
-#define IWL_PAN_SCD_MGMT_MSK cpu_to_le32(BIT(7))
-#define IWL_PAN_SCD_MULTICAST_MSK cpu_to_le32(BIT(8))
+#define IWL_PAN_SCD_BK_MSK BIT(4)
+#define IWL_PAN_SCD_BE_MSK BIT(5)
+#define IWL_PAN_SCD_VI_MSK BIT(6)
+#define IWL_PAN_SCD_VO_MSK BIT(7)
+#define IWL_PAN_SCD_MGMT_MSK BIT(7)
+#define IWL_PAN_SCD_MULTICAST_MSK BIT(8)
-#define IWL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00)
+#define IWL_AGG_TX_QUEUE_MSK 0xffc00
#define IWL_DROP_ALL BIT(1)
@@ -1005,12 +1005,17 @@ struct iwl_rem_sta_cmd {
* 1: Dump multiple MSDU according to PS, INVALID STA, TTL, TID disable.
* 2: Dump all FIFO
*/
-struct iwl_txfifo_flush_cmd {
+struct iwl_txfifo_flush_cmd_v3 {
__le32 queue_control;
__le16 flush_control;
__le16 reserved;
} __packed;
+struct iwl_txfifo_flush_cmd_v2 {
+ __le16 queue_control;
+ __le16 flush_control;
+} __packed;
+
/*
* REPLY_WEP_KEY = 0x20
*/
diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c
index 2191621d69c1..cfe1293692fc 100644
--- a/drivers/net/wireless/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/lib.c
@@ -137,37 +137,38 @@ int iwlagn_manage_ibss_station(struct iwl_priv *priv,
*/
int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk)
{
- struct iwl_txfifo_flush_cmd flush_cmd;
- struct iwl_host_cmd cmd = {
- .id = REPLY_TXFIFO_FLUSH,
- .len = { sizeof(struct iwl_txfifo_flush_cmd), },
- .data = { &flush_cmd, },
+ struct iwl_txfifo_flush_cmd_v3 flush_cmd_v3 = {
+ .flush_control = cpu_to_le16(IWL_DROP_ALL),
+ };
+ struct iwl_txfifo_flush_cmd_v2 flush_cmd_v2 = {
+ .flush_control = cpu_to_le16(IWL_DROP_ALL),
};
- memset(&flush_cmd, 0, sizeof(flush_cmd));
+ u32 queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |
+ IWL_SCD_BE_MSK | IWL_SCD_BK_MSK | IWL_SCD_MGMT_MSK;
- flush_cmd.queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |
- IWL_SCD_BE_MSK | IWL_SCD_BK_MSK |
- IWL_SCD_MGMT_MSK;
if ((priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)))
- flush_cmd.queue_control |= IWL_PAN_SCD_VO_MSK |
- IWL_PAN_SCD_VI_MSK |
- IWL_PAN_SCD_BE_MSK |
- IWL_PAN_SCD_BK_MSK |
- IWL_PAN_SCD_MGMT_MSK |
- IWL_PAN_SCD_MULTICAST_MSK;
+ queue_control |= IWL_PAN_SCD_VO_MSK | IWL_PAN_SCD_VI_MSK |
+ IWL_PAN_SCD_BE_MSK | IWL_PAN_SCD_BK_MSK |
+ IWL_PAN_SCD_MGMT_MSK |
+ IWL_PAN_SCD_MULTICAST_MSK;
if (priv->nvm_data->sku_cap_11n_enable)
- flush_cmd.queue_control |= IWL_AGG_TX_QUEUE_MSK;
+ queue_control |= IWL_AGG_TX_QUEUE_MSK;
if (scd_q_msk)
- flush_cmd.queue_control = cpu_to_le32(scd_q_msk);
-
- IWL_DEBUG_INFO(priv, "queue control: 0x%x\n",
- flush_cmd.queue_control);
- flush_cmd.flush_control = cpu_to_le16(IWL_DROP_ALL);
-
- return iwl_dvm_send_cmd(priv, &cmd);
+ queue_control = scd_q_msk;
+
+ IWL_DEBUG_INFO(priv, "queue control: 0x%x\n", queue_control);
+ flush_cmd_v3.queue_control = cpu_to_le32(queue_control);
+ flush_cmd_v2.queue_control = cpu_to_le16((u16)queue_control);
+
+ if (IWL_UCODE_API(priv->fw->ucode_ver) > 2)
+ return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0,
+ sizeof(flush_cmd_v3),
+ &flush_cmd_v3);
+ return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0,
+ sizeof(flush_cmd_v2), &flush_cmd_v2);
}
void iwlagn_dev_txfifo_flush(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index f2a5c12269a3..a09ce04c0f63 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1243,7 +1243,9 @@ struct iwl_mod_params iwlwifi_mod_params = {
.bt_coex_active = true,
.power_level = IWL_POWER_INDEX_1,
.wd_disable = true,
- .uapsd_disable = false,
+#ifndef CONFIG_IWLWIFI_UAPSD
+ .uapsd_disable = true,
+#endif /* CONFIG_IWLWIFI_UAPSD */
/* the rest are 0 by default */
};
IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
@@ -1359,7 +1361,11 @@ MODULE_PARM_DESC(nvm_file, "NVM file name");
module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
bool, S_IRUGO);
+#ifdef CONFIG_IWLWIFI_UAPSD
MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
+#else
+MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
+#endif
/*
* set bt_coex_active to true, uCode will do kill/defer
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 41a181683a00..bafdf24dacaa 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -1466,7 +1466,7 @@ enum iwl_sf_scenario {
#define SF_NUM_TIMEOUT_TYPES 2 /* Aging timer and Idle timer */
/* smart FIFO default values */
-#define SF_W_MARK_SISO 4096
+#define SF_W_MARK_SISO 6144
#define SF_W_MARK_MIMO2 8192
#define SF_W_MARK_MIMO3 6144
#define SF_W_MARK_LEGACY 4096
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 9cce960029aa..f096079d1fa3 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -215,14 +215,17 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
res->flags |= IORESOURCE_SIZEALIGN;
if (res->flags & IORESOURCE_IO) {
l &= PCI_BASE_ADDRESS_IO_MASK;
+ sz &= PCI_BASE_ADDRESS_IO_MASK;
mask = PCI_BASE_ADDRESS_IO_MASK & (u32) IO_SPACE_LIMIT;
} else {
l &= PCI_BASE_ADDRESS_MEM_MASK;
+ sz &= PCI_BASE_ADDRESS_MEM_MASK;
mask = (u32)PCI_BASE_ADDRESS_MEM_MASK;
}
} else {
res->flags |= (l & IORESOURCE_ROM_ENABLE);
l &= PCI_ROM_ADDRESS_MASK;
+ sz &= PCI_ROM_ADDRESS_MASK;
mask = (u32)PCI_ROM_ADDRESS_MASK;
}
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index 7f1a2e2711bd..fd090efe5489 100644
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -45,6 +45,8 @@ static const char *i2c_adapter_names[] = {
"SMBus I801 adapter",
"i915 gmbus vga",
"i915 gmbus panel",
+ "i2c-designware-pci",
+ "i2c-designware-pci",
};
/* Keep this enum consistent with i2c_adapter_names */
@@ -52,6 +54,8 @@ enum i2c_adapter_type {
I2C_ADAPTER_SMBUS = 0,
I2C_ADAPTER_VGADDC,
I2C_ADAPTER_PANEL,
+ I2C_ADAPTER_DESIGNWARE_0,
+ I2C_ADAPTER_DESIGNWARE_1,
};
struct i2c_peripheral {
@@ -172,29 +176,42 @@ static struct i2c_client *__add_probed_i2c_device(
return client;
}
+struct i2c_lookup {
+ const char *name;
+ int instance;
+ int n;
+};
+
static int __find_i2c_adap(struct device *dev, void *data)
{
- const char *name = data;
+ struct i2c_lookup *lookup = data;
static const char *prefix = "i2c-";
struct i2c_adapter *adapter;
if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0)
return 0;
adapter = to_i2c_adapter(dev);
- return (strncmp(adapter->name, name, strlen(name)) == 0);
+ if (strncmp(adapter->name, lookup->name, strlen(lookup->name)) == 0 &&
+ lookup->n++ == lookup->instance)
+ return 1;
+ return 0;
}
static int find_i2c_adapter_num(enum i2c_adapter_type type)
{
struct device *dev = NULL;
struct i2c_adapter *adapter;
- const char *name = i2c_adapter_names[type];
+ struct i2c_lookup lookup;
+
+ memset(&lookup, 0, sizeof(lookup));
+ lookup.name = i2c_adapter_names[type];
+ lookup.instance = (type == I2C_ADAPTER_DESIGNWARE_1) ? 1 : 0;
+
/* find the adapter by name */
- dev = bus_find_device(&i2c_bus_type, NULL, (void *)name,
- __find_i2c_adap);
+ dev = bus_find_device(&i2c_bus_type, NULL, &lookup, __find_i2c_adap);
if (!dev) {
/* Adapters may appear later. Deferred probing will retry */
pr_notice("%s: i2c adapter %s not found on system.\n", __func__,
- name);
+ lookup.name);
return -ENODEV;
}
adapter = to_i2c_adapter(dev);
@@ -363,6 +380,27 @@ static struct chromeos_laptop chromebook_pixel = {
},
};
+static struct chromeos_laptop hp_chromebook_14 = {
+ .i2c_peripherals = {
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
+ },
+};
+
+static struct chromeos_laptop dell_chromebook_11 = {
+ .i2c_peripherals = {
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
+ },
+};
+
+static struct chromeos_laptop toshiba_cb35 = {
+ .i2c_peripherals = {
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
+ },
+};
+
static struct chromeos_laptop acer_c7_chromebook = {
.i2c_peripherals = {
/* Touchpad. */
@@ -377,6 +415,17 @@ static struct chromeos_laptop acer_ac700 = {
},
};
+static struct chromeos_laptop acer_c720 = {
+ .i2c_peripherals = {
+ /* Touchscreen. */
+ { .add = setup_atmel_1664s_ts, I2C_ADAPTER_DESIGNWARE_1 },
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
+ /* Light Sensor. */
+ { .add = setup_isl29018_als, I2C_ADAPTER_DESIGNWARE_1 },
+ },
+};
+
static struct chromeos_laptop hp_pavilion_14_chromebook = {
.i2c_peripherals = {
/* Touchpad. */
@@ -420,6 +469,30 @@ static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = {
_CBDD(chromebook_pixel),
},
{
+ .ident = "Wolf",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Wolf"),
+ },
+ _CBDD(dell_chromebook_11),
+ },
+ {
+ .ident = "HP Chromebook 14",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Falco"),
+ },
+ _CBDD(hp_chromebook_14),
+ },
+ {
+ .ident = "Toshiba CB35",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Leon"),
+ },
+ _CBDD(toshiba_cb35),
+ },
+ {
.ident = "Acer C7 Chromebook",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
@@ -434,6 +507,13 @@ static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = {
_CBDD(acer_ac700),
},
{
+ .ident = "Acer C720",
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"),
+ },
+ _CBDD(acer_c720),
+ },
+ {
.ident = "HP Pavilion 14 Chromebook",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index 3dc934438c28..07fbcb0fb646 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -237,6 +237,7 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
AXIS_DMI_MATCH("HPB64xx", "HP ProBook 64", xy_swap),
AXIS_DMI_MATCH("HPB64xx", "HP EliteBook 84", xy_swap),
AXIS_DMI_MATCH("HPB65xx", "HP ProBook 65", x_inverted),
+ AXIS_DMI_MATCH("HPZBook15", "HP ZBook 15", x_inverted),
{ NULL, }
/* Laptop models without axis info (yet):
* "NC6910" "HP Compaq 6910"
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index b1cda6ffdbcc..a362dcc20ec0 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -953,6 +953,7 @@ static const struct x86_cpu_id rapl_ids[] = {
{ X86_VENDOR_INTEL, 6, 0x3a},/* Ivy Bridge */
{ X86_VENDOR_INTEL, 6, 0x3c},/* Haswell */
{ X86_VENDOR_INTEL, 6, 0x3d},/* Broadwell */
+ { X86_VENDOR_INTEL, 6, 0x3f},/* Haswell */
{ X86_VENDOR_INTEL, 6, 0x45},/* Haswell ULT */
/* TODO: Add more CPU IDs after testing */
{}
diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 4f730af70e7c..30e8d7ad5813 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -283,6 +283,14 @@ static int anatop_regulator_probe(struct platform_device *pdev)
sreg->sel = 0;
sreg->bypass = true;
}
+
+ /*
+ * In case vddpu was disabled by the bootloader, we need to set
+ * a sane default until imx6-cpufreq was probed and changes the
+ * voltage to the correct value. In this case we set 1.25V.
+ */
+ if (!sreg->sel && !strcmp(sreg->name, "vddpu"))
+ sreg->sel = 22;
} else {
rdesc->ops = &anatop_rops;
}
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 21142e6574a9..828cb9983cc2 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -416,6 +416,8 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG);
}
+ device_init_wakeup(&pdev->dev, true);
+
rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&omap_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
@@ -431,8 +433,10 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
rtc_write(0, OMAP_RTC_INTERRUPTS_REG);
/* enable RTC functional clock */
- if (id_entry->driver_data & OMAP_RTC_HAS_32KCLK_EN)
- rtc_writel(OMAP_RTC_OSC_32KCLK_EN, OMAP_RTC_OSC_REG);
+ if (id_entry->driver_data & OMAP_RTC_HAS_32KCLK_EN) {
+ reg = rtc_read(OMAP_RTC_OSC_REG);
+ rtc_writel(reg | OMAP_RTC_OSC_32KCLK_EN, OMAP_RTC_OSC_REG);
+ }
/* clear old status */
reg = rtc_read(OMAP_RTC_STATUS_REG);
@@ -482,8 +486,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
* is write-only, and always reads as zero...)
*/
- device_init_wakeup(&pdev->dev, true);
-
if (new_ctrl & (u8) OMAP_RTC_CTRL_SPLIT)
pr_info("%s: split power mode\n", pdev->name);
@@ -493,6 +495,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
return 0;
fail0:
+ device_init_wakeup(&pdev->dev, false);
if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)
rtc_writel(0, OMAP_RTC_KICK0_REG);
pm_runtime_put_sync(&pdev->dev);
diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c
index 76e38007ba90..24ba97d3286e 100644
--- a/drivers/rtc/rtc-sirfsoc.c
+++ b/drivers/rtc/rtc-sirfsoc.c
@@ -286,14 +286,6 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev)
rtc_div = ((32768 / RTC_HZ) / 2) - 1;
sirfsoc_rtc_iobrg_writel(rtc_div, rtcdrv->rtc_base + RTC_DIV);
- rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
- &sirfsoc_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtcdrv->rtc)) {
- err = PTR_ERR(rtcdrv->rtc);
- dev_err(&pdev->dev, "can't register RTC device\n");
- return err;
- }
-
/* 0x3 -> RTC_CLK */
sirfsoc_rtc_iobrg_writel(SIRFSOC_RTC_CLK,
rtcdrv->rtc_base + RTC_CLOCK_SWITCH);
@@ -308,6 +300,14 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev)
rtcdrv->overflow_rtc =
sirfsoc_rtc_iobrg_readl(rtcdrv->rtc_base + RTC_SW_VALUE);
+ rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
+ &sirfsoc_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtcdrv->rtc)) {
+ err = PTR_ERR(rtcdrv->rtc);
+ dev_err(&pdev->dev, "can't register RTC device\n");
+ return err;
+ }
+
rtcdrv->irq = platform_get_irq(pdev, 0);
err = devm_request_irq(
&pdev->dev,
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 5af7f0bd6125..c43aca69fb30 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -288,12 +288,16 @@ static void raw3215_timeout(unsigned long __data)
unsigned long flags;
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
- if (raw->flags & RAW3215_TIMER_RUNS) {
- del_timer(&raw->timer);
- raw->flags &= ~RAW3215_TIMER_RUNS;
- if (!(raw->port.flags & ASYNC_SUSPENDED)) {
- raw3215_mk_write_req(raw);
- raw3215_start_io(raw);
+ raw->flags &= ~RAW3215_TIMER_RUNS;
+ if (!(raw->port.flags & ASYNC_SUSPENDED)) {
+ raw3215_mk_write_req(raw);
+ raw3215_start_io(raw);
+ if ((raw->queued_read || raw->queued_write) &&
+ !(raw->flags & RAW3215_WORKING) &&
+ !(raw->flags & RAW3215_TIMER_RUNS)) {
+ raw->timer.expires = RAW3215_TIMEOUT + jiffies;
+ add_timer(&raw->timer);
+ raw->flags |= RAW3215_TIMER_RUNS;
}
}
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
@@ -317,17 +321,15 @@ static inline void raw3215_try_io(struct raw3215_info *raw)
(raw->flags & RAW3215_FLUSHING)) {
/* execute write requests bigger than minimum size */
raw3215_start_io(raw);
- if (raw->flags & RAW3215_TIMER_RUNS) {
- del_timer(&raw->timer);
- raw->flags &= ~RAW3215_TIMER_RUNS;
- }
- } else if (!(raw->flags & RAW3215_TIMER_RUNS)) {
- /* delay small writes */
- raw->timer.expires = RAW3215_TIMEOUT + jiffies;
- add_timer(&raw->timer);
- raw->flags |= RAW3215_TIMER_RUNS;
}
}
+ if ((raw->queued_read || raw->queued_write) &&
+ !(raw->flags & RAW3215_WORKING) &&
+ !(raw->flags & RAW3215_TIMER_RUNS)) {
+ raw->timer.expires = RAW3215_TIMEOUT + jiffies;
+ add_timer(&raw->timer);
+ raw->flags |= RAW3215_TIMER_RUNS;
+ }
}
/*
@@ -1033,12 +1035,26 @@ static int tty3215_write(struct tty_struct * tty,
const unsigned char *buf, int count)
{
struct raw3215_info *raw;
+ int i, written;
if (!tty)
return 0;
raw = (struct raw3215_info *) tty->driver_data;
- raw3215_write(raw, buf, count);
- return count;
+ written = count;
+ while (count > 0) {
+ for (i = 0; i < count; i++)
+ if (buf[i] == '\t' || buf[i] == '\n')
+ break;
+ raw3215_write(raw, buf, i);
+ count -= i;
+ buf += i;
+ if (count > 0) {
+ raw3215_putchar(raw, *buf);
+ count--;
+ buf++;
+ }
+ }
+ return written;
}
/*
@@ -1186,7 +1202,7 @@ static int __init tty3215_init(void)
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
driver->init_termios.c_iflag = IGNBRK | IGNPAR;
- driver->init_termios.c_oflag = ONLCR | XTABS;
+ driver->init_termios.c_oflag = ONLCR;
driver->init_termios.c_lflag = ISIG;
driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(driver, &tty3215_ops);
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 93d13fc9a293..a3d06ae2a631 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -2646,14 +2646,14 @@ static void NCR5380_dma_complete(NCR5380_instance * instance) {
*
* Purpose : abort a command
*
- * Inputs : cmd - the Scsi_Cmnd to abort, code - code to set the
- * host byte of the result field to, if zero DID_ABORTED is
+ * Inputs : cmd - the Scsi_Cmnd to abort, code - code to set the
+ * host byte of the result field to, if zero DID_ABORTED is
* used.
*
- * Returns : 0 - success, -1 on failure.
+ * Returns : SUCCESS - success, FAILED on failure.
*
- * XXX - there is no way to abort the command that is currently
- * connected, you have to wait for it to complete. If this is
+ * XXX - there is no way to abort the command that is currently
+ * connected, you have to wait for it to complete. If this is
* a problem, we could implement longjmp() / setjmp(), setjmp()
* called where the loop started in NCR5380_main().
*
@@ -2703,7 +2703,7 @@ static int NCR5380_abort(Scsi_Cmnd * cmd) {
* aborted flag and get back into our main loop.
*/
- return 0;
+ return SUCCESS;
}
#endif
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c
index 5f3101797c93..31ace4bef8fe 100644
--- a/drivers/scsi/aha1740.c
+++ b/drivers/scsi/aha1740.c
@@ -531,7 +531,7 @@ static int aha1740_eh_abort_handler (Scsi_Cmnd *dummy)
* quiet as possible...
*/
- return 0;
+ return SUCCESS;
}
static struct scsi_host_template aha1740_template = {
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 1814aa20b724..cccc98d674b1 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -2603,7 +2603,7 @@ static void NCR5380_reselect(struct Scsi_Host *instance)
* host byte of the result field to, if zero DID_ABORTED is
* used.
*
- * Returns : 0 - success, -1 on failure.
+ * Returns : SUCCESS - success, FAILED on failure.
*
* XXX - there is no way to abort the command that is currently
* connected, you have to wait for it to complete. If this is
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 6504a195c874..45aa684f8b74 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -1057,7 +1057,7 @@ int esas2r_eh_abort(struct scsi_cmnd *cmd)
cmd->scsi_done(cmd);
- return 0;
+ return SUCCESS;
}
spin_lock_irqsave(&a->queue_lock, flags);
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index b7770516f4c2..716c3c05fc7c 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -1945,7 +1945,7 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor)
cmd->device->id, cmd->device->lun);
if(list_empty(&adapter->pending_list))
- return FALSE;
+ return FAILED;
list_for_each_safe(pos, next, &adapter->pending_list) {
@@ -1968,7 +1968,7 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor)
(aor==SCB_ABORT) ? "ABORTING":"RESET",
scb->idx);
- return FALSE;
+ return FAILED;
}
else {
@@ -1993,12 +1993,12 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor)
list_add_tail(SCSI_LIST(cmd),
&adapter->completed_list);
- return TRUE;
+ return SUCCESS;
}
}
}
- return FALSE;
+ return FAILED;
}
static inline int
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 112799b131a9..8677fa0deb2d 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -980,7 +980,7 @@ megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
cmd->sync_cmd = 1;
- cmd->cmd_status = 0xFF;
+ cmd->cmd_status = ENODATA;
instance->instancet->issue_dcmd(instance, cmd);
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index 410f4a3e8888..72f9c55d0e00 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -1006,12 +1006,9 @@ mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
&mpt2sas_phy->remote_identify);
_transport_add_phy_to_an_existing_port(ioc, sas_node,
mpt2sas_phy, mpt2sas_phy->remote_identify.sas_address);
- } else {
+ } else
memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct
sas_identify));
- _transport_del_phy_from_an_existing_port(ioc, sas_node,
- mpt2sas_phy);
- }
if (mpt2sas_phy->phy)
mpt2sas_phy->phy->negotiated_linkrate =
diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
index 65170cb1a00f..55aa597eb229 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_transport.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -1003,12 +1003,9 @@ mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
&mpt3sas_phy->remote_identify);
_transport_add_phy_to_an_existing_port(ioc, sas_node,
mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address);
- } else {
+ } else
memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct
sas_identify));
- _transport_del_phy_from_an_existing_port(ioc, sas_node,
- mpt3sas_phy);
- }
if (mpt3sas_phy->phy)
mpt3sas_phy->phy->negotiated_linkrate =
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index c1d04d4d3c6c..262ab837a704 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -211,6 +211,7 @@ static struct {
{"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
{"MegaRAID", "LD", NULL, BLIST_FORCELUN},
{"MICROP", "4110", NULL, BLIST_NOTQ},
+ {"MSFT", "Virtual HD", NULL, BLIST_NO_RSOC},
{"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
{"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
{"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index ed0f899e8aa5..86b05151fdab 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1690,13 +1690,12 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
if (ret == -EAGAIN) {
/* no more space */
- if (cmd_request->bounce_sgl_count) {
+ if (cmd_request->bounce_sgl_count)
destroy_bounce_buffer(cmd_request->bounce_sgl,
cmd_request->bounce_sgl_count);
- ret = SCSI_MLQUEUE_DEVICE_BUSY;
- goto queue_error;
- }
+ ret = SCSI_MLQUEUE_DEVICE_BUSY;
+ goto queue_error;
}
return 0;
diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c
index 88220794cc98..85e2292ba151 100644
--- a/drivers/scsi/sun3_NCR5380.c
+++ b/drivers/scsi/sun3_NCR5380.c
@@ -2587,15 +2587,15 @@ static void NCR5380_reselect (struct Scsi_Host *instance)
* Purpose : abort a command
*
* Inputs : cmd - the struct scsi_cmnd to abort, code - code to set the
- * host byte of the result field to, if zero DID_ABORTED is
+ * host byte of the result field to, if zero DID_ABORTED is
* used.
*
- * Returns : 0 - success, -1 on failure.
+ * Returns : SUCCESS - success, FAILED on failure.
*
- * XXX - there is no way to abort the command that is currently
- * connected, you have to wait for it to complete. If this is
+ * XXX - there is no way to abort the command that is currently
+ * connected, you have to wait for it to complete. If this is
* a problem, we could implement longjmp() / setjmp(), setjmp()
- * called where the loop started in NCR5380_main().
+ * called where the loop started in NCR5380_main().
*/
static int NCR5380_abort(struct scsi_cmnd *cmd)
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index 7d520d8f4a69..e5817f19f3c3 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -258,7 +258,7 @@ void ll_invalidate_aliases(struct inode *inode)
inode->i_ino, inode->i_generation, inode);
ll_lock_dcache(inode);
- ll_d_hlist_for_each_entry(dentry, p, &inode->i_dentry, d_alias) {
+ ll_d_hlist_for_each_entry(dentry, p, &inode->i_dentry, d_u.d_alias) {
CDEBUG(D_DENTRY, "dentry in drop %.*s (%p) parent %p "
"inode %p flags %d\n", dentry->d_name.len,
dentry->d_name.name, dentry, dentry->d_parent,
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index deca27ea33fe..0e507f53fd9b 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -704,7 +704,7 @@ void lustre_dump_dentry(struct dentry *dentry, int recur)
return;
list_for_each(tmp, &dentry->d_subdirs) {
- struct dentry *d = list_entry(tmp, struct dentry, d_u.d_child);
+ struct dentry *d = list_entry(tmp, struct dentry, d_child);
lustre_dump_dentry(d, recur - 1);
}
}
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index dfa1e745dfd6..bfa8fa2362fa 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -167,14 +167,14 @@ static void ll_invalidate_negative_children(struct inode *dir)
struct ll_d_hlist_node *p;
ll_lock_dcache(dir);
- ll_d_hlist_for_each_entry(dentry, p, &dir->i_dentry, d_alias) {
+ ll_d_hlist_for_each_entry(dentry, p, &dir->i_dentry, d_u.d_alias) {
spin_lock(&dentry->d_lock);
if (!list_empty(&dentry->d_subdirs)) {
struct dentry *child;
list_for_each_entry_safe(child, tmp_subdir,
&dentry->d_subdirs,
- d_u.d_child) {
+ d_child) {
if (child->d_inode == NULL)
d_lustre_invalidate(child, 1);
}
@@ -362,7 +362,7 @@ static struct dentry *ll_find_alias(struct inode *inode, struct dentry *dentry)
discon_alias = invalid_alias = NULL;
ll_lock_dcache(inode);
- ll_d_hlist_for_each_entry(alias, p, &inode->i_dentry, d_alias) {
+ ll_d_hlist_for_each_entry(alias, p, &inode->i_dentry, d_u.d_alias) {
LASSERT(alias != dentry);
spin_lock(&alias->d_lock);
@@ -943,7 +943,7 @@ static void ll_get_child_fid(struct inode * dir, struct qstr *name,
{
struct dentry *parent, *child;
- parent = ll_d_hlist_entry(dir->i_dentry, struct dentry, d_alias);
+ parent = ll_d_hlist_entry(dir->i_dentry, struct dentry, d_u.d_alias);
child = d_lookup(parent, name);
if (child) {
if (child->d_inode)
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 5e71ac609418..dabc7e770b00 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -281,7 +281,6 @@ static int iscsi_login_zero_tsih_s1(
{
struct iscsi_session *sess = NULL;
struct iscsi_login_req *pdu = (struct iscsi_login_req *)buf;
- enum target_prot_op sup_pro_ops;
int ret;
sess = kzalloc(sizeof(struct iscsi_session), GFP_KERNEL);
@@ -343,9 +342,8 @@ static int iscsi_login_zero_tsih_s1(
kfree(sess);
return -ENOMEM;
}
- sup_pro_ops = conn->conn_transport->iscsit_get_sup_prot_ops(conn);
- sess->se_sess = transport_init_session(sup_pro_ops);
+ sess->se_sess = transport_init_session(TARGET_PROT_NORMAL);
if (IS_ERR(sess->se_sess)) {
iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
ISCSI_LOGIN_STATUS_NO_RESOURCES);
@@ -1206,6 +1204,9 @@ old_sess_out:
conn->sock = NULL;
}
+ if (conn->conn_transport->iscsit_wait_conn)
+ conn->conn_transport->iscsit_wait_conn(conn);
+
if (conn->conn_transport->iscsit_free_conn)
conn->conn_transport->iscsit_free_conn(conn);
@@ -1368,6 +1369,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
}
login->zero_tsih = zero_tsih;
+ conn->sess->se_sess->sup_prot_ops =
+ conn->conn_transport->iscsit_get_sup_prot_ops(conn);
+
tpg = conn->tpg;
if (!tpg) {
pr_err("Unable to locate struct iscsi_conn->tpg\n");
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index fd90b28f1d94..2e96ae6cf3c1 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -1356,15 +1356,15 @@ static int iscsit_do_tx_data(
struct iscsi_conn *conn,
struct iscsi_data_count *count)
{
- int data = count->data_length, total_tx = 0, tx_loop = 0, iov_len;
+ int ret, iov_len;
struct kvec *iov_p;
struct msghdr msg;
if (!conn || !conn->sock || !conn->conn_ops)
return -1;
- if (data <= 0) {
- pr_err("Data length is: %d\n", data);
+ if (count->data_length <= 0) {
+ pr_err("Data length is: %d\n", count->data_length);
return -1;
}
@@ -1373,20 +1373,16 @@ static int iscsit_do_tx_data(
iov_p = count->iov;
iov_len = count->iov_count;
- while (total_tx < data) {
- tx_loop = kernel_sendmsg(conn->sock, &msg, iov_p, iov_len,
- (data - total_tx));
- if (tx_loop <= 0) {
- pr_debug("tx_loop: %d total_tx %d\n",
- tx_loop, total_tx);
- return tx_loop;
- }
- total_tx += tx_loop;
- pr_debug("tx_loop: %d, total_tx: %d, data: %d\n",
- tx_loop, total_tx, data);
+ ret = kernel_sendmsg(conn->sock, &msg, iov_p, iov_len,
+ count->data_length);
+ if (ret != count->data_length) {
+ pr_err("Unexpected ret: %d send data %d\n",
+ ret, count->data_length);
+ return -EPIPE;
}
+ pr_debug("ret: %d, sent data: %d\n", ret, count->data_length);
- return total_tx;
+ return ret;
}
int rx_data(
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 8c64b8776a96..6177ed38121e 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -197,7 +197,7 @@ static void tcm_loop_submission_work(struct work_struct *work)
set_host_byte(sc, DID_TRANSPORT_DISRUPTED);
goto out_done;
}
- tl_nexus = tl_hba->tl_nexus;
+ tl_nexus = tl_tpg->tl_nexus;
if (!tl_nexus) {
scmd_printk(KERN_ERR, sc, "TCM_Loop I_T Nexus"
" does not exist\n");
@@ -277,16 +277,26 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc)
* to struct scsi_device
*/
static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
- struct tcm_loop_nexus *tl_nexus,
int lun, int task, enum tcm_tmreq_table tmr)
{
struct se_cmd *se_cmd = NULL;
struct se_session *se_sess;
struct se_portal_group *se_tpg;
+ struct tcm_loop_nexus *tl_nexus;
struct tcm_loop_cmd *tl_cmd = NULL;
struct tcm_loop_tmr *tl_tmr = NULL;
int ret = TMR_FUNCTION_FAILED, rc;
+ /*
+ * Locate the tl_nexus and se_sess pointers
+ */
+ tl_nexus = tl_tpg->tl_nexus;
+ if (!tl_nexus) {
+ pr_err("Unable to perform device reset without"
+ " active I_T Nexus\n");
+ return ret;
+ }
+
tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL);
if (!tl_cmd) {
pr_err("Unable to allocate memory for tl_cmd\n");
@@ -302,7 +312,7 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
se_cmd = &tl_cmd->tl_se_cmd;
se_tpg = &tl_tpg->tl_se_tpg;
- se_sess = tl_nexus->se_sess;
+ se_sess = tl_tpg->tl_nexus->se_sess;
/*
* Initialize struct se_cmd descriptor from target_core_mod infrastructure
*/
@@ -347,7 +357,6 @@ release:
static int tcm_loop_abort_task(struct scsi_cmnd *sc)
{
struct tcm_loop_hba *tl_hba;
- struct tcm_loop_nexus *tl_nexus;
struct tcm_loop_tpg *tl_tpg;
int ret = FAILED;
@@ -355,21 +364,8 @@ static int tcm_loop_abort_task(struct scsi_cmnd *sc)
* Locate the tcm_loop_hba_t pointer
*/
tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
- /*
- * Locate the tl_nexus and se_sess pointers
- */
- tl_nexus = tl_hba->tl_nexus;
- if (!tl_nexus) {
- pr_err("Unable to perform device reset without"
- " active I_T Nexus\n");
- return FAILED;
- }
-
- /*
- * Locate the tl_tpg pointer from TargetID in sc->device->id
- */
tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
- ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus, sc->device->lun,
+ ret = tcm_loop_issue_tmr(tl_tpg, sc->device->lun,
sc->tag, TMR_ABORT_TASK);
return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
}
@@ -381,7 +377,6 @@ static int tcm_loop_abort_task(struct scsi_cmnd *sc)
static int tcm_loop_device_reset(struct scsi_cmnd *sc)
{
struct tcm_loop_hba *tl_hba;
- struct tcm_loop_nexus *tl_nexus;
struct tcm_loop_tpg *tl_tpg;
int ret = FAILED;
@@ -389,20 +384,9 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
* Locate the tcm_loop_hba_t pointer
*/
tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
- /*
- * Locate the tl_nexus and se_sess pointers
- */
- tl_nexus = tl_hba->tl_nexus;
- if (!tl_nexus) {
- pr_err("Unable to perform device reset without"
- " active I_T Nexus\n");
- return FAILED;
- }
- /*
- * Locate the tl_tpg pointer from TargetID in sc->device->id
- */
tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
- ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus, sc->device->lun,
+
+ ret = tcm_loop_issue_tmr(tl_tpg, sc->device->lun,
0, TMR_LUN_RESET);
return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
}
@@ -1014,8 +998,8 @@ static int tcm_loop_make_nexus(
struct tcm_loop_nexus *tl_nexus;
int ret = -ENOMEM;
- if (tl_tpg->tl_hba->tl_nexus) {
- pr_debug("tl_tpg->tl_hba->tl_nexus already exists\n");
+ if (tl_tpg->tl_nexus) {
+ pr_debug("tl_tpg->tl_nexus already exists\n");
return -EEXIST;
}
se_tpg = &tl_tpg->tl_se_tpg;
@@ -1050,7 +1034,7 @@ static int tcm_loop_make_nexus(
*/
__transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
tl_nexus->se_sess, tl_nexus);
- tl_tpg->tl_hba->tl_nexus = tl_nexus;
+ tl_tpg->tl_nexus = tl_nexus;
pr_debug("TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
name);
@@ -1066,12 +1050,8 @@ static int tcm_loop_drop_nexus(
{
struct se_session *se_sess;
struct tcm_loop_nexus *tl_nexus;
- struct tcm_loop_hba *tl_hba = tpg->tl_hba;
- if (!tl_hba)
- return -ENODEV;
-
- tl_nexus = tl_hba->tl_nexus;
+ tl_nexus = tpg->tl_nexus;
if (!tl_nexus)
return -ENODEV;
@@ -1087,13 +1067,13 @@ static int tcm_loop_drop_nexus(
}
pr_debug("TCM_Loop_ConfigFS: Removing I_T Nexus to emulated"
- " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
+ " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tpg->tl_hba),
tl_nexus->se_sess->se_node_acl->initiatorname);
/*
* Release the SCSI I_T Nexus to the emulated SAS Target Port
*/
transport_deregister_session(tl_nexus->se_sess);
- tpg->tl_hba->tl_nexus = NULL;
+ tpg->tl_nexus = NULL;
kfree(tl_nexus);
return 0;
}
@@ -1109,7 +1089,7 @@ static ssize_t tcm_loop_tpg_show_nexus(
struct tcm_loop_nexus *tl_nexus;
ssize_t ret;
- tl_nexus = tl_tpg->tl_hba->tl_nexus;
+ tl_nexus = tl_tpg->tl_nexus;
if (!tl_nexus)
return -ENODEV;
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index 54c59d0b6608..6ae49f272ba6 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -27,11 +27,6 @@ struct tcm_loop_tmr {
};
struct tcm_loop_nexus {
- int it_nexus_active;
- /*
- * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h
- */
- struct scsi_host *sh;
/*
* Pointer to TCM session for I_T Nexus
*/
@@ -51,6 +46,7 @@ struct tcm_loop_tpg {
atomic_t tl_tpg_port_count;
struct se_portal_group tl_se_tpg;
struct tcm_loop_hba *tl_hba;
+ struct tcm_loop_nexus *tl_nexus;
};
struct tcm_loop_hba {
@@ -59,7 +55,6 @@ struct tcm_loop_hba {
struct se_hba_s *se_hba;
struct se_lun *tl_hba_lun;
struct se_port *tl_hba_lun_sep;
- struct tcm_loop_nexus *tl_nexus;
struct device dev;
struct Scsi_Host *sh;
struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA];
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index 95cb7fc20e17..6cb78497076a 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -435,7 +435,6 @@ static int clamp_thread(void *arg)
* allowed. thus jiffies are updated properly.
*/
preempt_disable();
- tick_nohz_idle_enter();
/* mwait until target jiffies is reached */
while (time_before(jiffies, target_jiffies)) {
unsigned long ecx = 1;
@@ -451,7 +450,6 @@ static int clamp_thread(void *arg)
start_critical_timings();
atomic_inc(&idle_wakeup_counter);
}
- tick_nohz_idle_exit();
preempt_enable();
}
del_timer_sync(&wakeup_timer);
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 71b0ec0c370d..284733e1fb6f 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1824,10 +1824,10 @@ static int __init thermal_init(void)
exit_netlink:
genetlink_exit();
-unregister_governors:
- thermal_unregister_governors();
unregister_class:
class_unregister(&thermal_class);
+unregister_governors:
+ thermal_unregister_governors();
error:
idr_destroy(&thermal_tz_idr);
idr_destroy(&thermal_cdev_idr);
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index f44f1ba762c3..d31b4a8c02ab 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -321,7 +321,8 @@ static void n_tty_check_unthrottle(struct tty_struct *tty)
static inline void put_tty_queue(unsigned char c, struct n_tty_data *ldata)
{
- *read_buf_addr(ldata, ldata->read_head++) = c;
+ *read_buf_addr(ldata, ldata->read_head) = c;
+ ldata->read_head++;
}
/**
diff --git a/drivers/tty/serial/men_z135_uart.c b/drivers/tty/serial/men_z135_uart.c
index c9d18548783a..6a011247b11d 100644
--- a/drivers/tty/serial/men_z135_uart.c
+++ b/drivers/tty/serial/men_z135_uart.c
@@ -809,6 +809,7 @@ static void men_z135_remove(struct mcb_device *mdev)
static const struct mcb_device_id men_z135_ids[] = {
{ .device = 0x87 },
+ { }
};
MODULE_DEVICE_TABLE(mcb, men_z135_ids);
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index c1d3ebdf3b97..7268409dfc68 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -567,11 +567,15 @@ static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
unsigned int old)
{
struct s3c24xx_uart_port *ourport = to_ourport(port);
+ int timeout = 10000;
ourport->pm_level = level;
switch (level) {
case 3:
+ while (--timeout && !s3c24xx_serial_txempty_nofifo(port))
+ udelay(100);
+
if (!IS_ERR(ourport->baudclk))
clk_disable_unprepare(ourport->baudclk);
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 7daaef192c28..4d4f6db94c72 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1192,10 +1192,11 @@ next_desc:
} else {
control_interface = usb_ifnum_to_if(usb_dev, union_header->bMasterInterface0);
data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = union_header->bSlaveInterface0));
- if (!control_interface || !data_interface) {
- dev_dbg(&intf->dev, "no interfaces\n");
- return -ENODEV;
- }
+ }
+
+ if (!control_interface || !data_interface) {
+ dev_dbg(&intf->dev, "no interfaces\n");
+ return -ENODEV;
}
if (data_interface_num != call_interface_num)
@@ -1470,6 +1471,7 @@ alloc_fail8:
&dev_attr_wCountryCodes);
device_remove_file(&acm->control->dev,
&dev_attr_iCountryCodeRelDate);
+ kfree(acm->country_codes);
}
device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities);
alloc_fail7:
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 7f4a4412b2fc..666399a23da3 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -103,6 +103,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x04f3, 0x009b), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
+ { USB_DEVICE(0x04f3, 0x010c), .driver_info =
+ USB_QUIRK_DEVICE_QUALIFIER },
+
{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index cfd18bcca723..0d685d0b858e 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -870,12 +870,10 @@ static void clk_on(struct at91_udc *udc)
return;
udc->clocked = 1;
- if (IS_ENABLED(CONFIG_COMMON_CLK)) {
- clk_set_rate(udc->uclk, 48000000);
- clk_prepare_enable(udc->uclk);
- }
- clk_prepare_enable(udc->iclk);
- clk_prepare_enable(udc->fclk);
+ if (IS_ENABLED(CONFIG_COMMON_CLK))
+ clk_enable(udc->uclk);
+ clk_enable(udc->iclk);
+ clk_enable(udc->fclk);
}
static void clk_off(struct at91_udc *udc)
@@ -884,10 +882,10 @@ static void clk_off(struct at91_udc *udc)
return;
udc->clocked = 0;
udc->gadget.speed = USB_SPEED_UNKNOWN;
- clk_disable_unprepare(udc->fclk);
- clk_disable_unprepare(udc->iclk);
+ clk_disable(udc->fclk);
+ clk_disable(udc->iclk);
if (IS_ENABLED(CONFIG_COMMON_CLK))
- clk_disable_unprepare(udc->uclk);
+ clk_disable(udc->uclk);
}
/*
@@ -1780,14 +1778,24 @@ static int at91udc_probe(struct platform_device *pdev)
}
/* don't do anything until we have both gadget driver and VBUS */
+ if (IS_ENABLED(CONFIG_COMMON_CLK)) {
+ clk_set_rate(udc->uclk, 48000000);
+ retval = clk_prepare(udc->uclk);
+ if (retval)
+ goto fail1;
+ }
+ retval = clk_prepare(udc->fclk);
+ if (retval)
+ goto fail1a;
+
retval = clk_prepare_enable(udc->iclk);
if (retval)
- goto fail1;
+ goto fail1b;
at91_udp_write(udc, AT91_UDP_TXVC, AT91_UDP_TXVC_TXVDIS);
at91_udp_write(udc, AT91_UDP_IDR, 0xffffffff);
/* Clear all pending interrupts - UDP may be used by bootloader. */
at91_udp_write(udc, AT91_UDP_ICR, 0xffffffff);
- clk_disable_unprepare(udc->iclk);
+ clk_disable(udc->iclk);
/* request UDC and maybe VBUS irqs */
udc->udp_irq = platform_get_irq(pdev, 0);
@@ -1795,7 +1803,7 @@ static int at91udc_probe(struct platform_device *pdev)
0, driver_name, udc);
if (retval < 0) {
DBG("request irq %d failed\n", udc->udp_irq);
- goto fail1;
+ goto fail1c;
}
if (gpio_is_valid(udc->board.vbus_pin)) {
retval = gpio_request(udc->board.vbus_pin, "udc_vbus");
@@ -1848,6 +1856,13 @@ fail3:
gpio_free(udc->board.vbus_pin);
fail2:
free_irq(udc->udp_irq, udc);
+fail1c:
+ clk_unprepare(udc->iclk);
+fail1b:
+ clk_unprepare(udc->fclk);
+fail1a:
+ if (IS_ENABLED(CONFIG_COMMON_CLK))
+ clk_unprepare(udc->uclk);
fail1:
if (IS_ENABLED(CONFIG_COMMON_CLK) && !IS_ERR(udc->uclk))
clk_put(udc->uclk);
@@ -1896,6 +1911,11 @@ static int __exit at91udc_remove(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
+ if (IS_ENABLED(CONFIG_COMMON_CLK))
+ clk_unprepare(udc->uclk);
+ clk_unprepare(udc->fclk);
+ clk_unprepare(udc->iclk);
+
clk_put(udc->iclk);
clk_put(udc->fclk);
if (IS_ENABLED(CONFIG_COMMON_CLK))
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 458f3766bef1..e344d50f4697 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -601,6 +601,9 @@ static int usbhsg_ep_disable(struct usb_ep *ep)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
+ if (!uep->pipe)
+ return -EINVAL;
+
usbhsg_pipe_disable(uep);
uep->pipe->mod_private = NULL;
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index b2aa003bf411..cb3e14780a7e 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -27,12 +27,15 @@ enum qcserial_layouts {
QCSERIAL_G2K = 0, /* Gobi 2000 */
QCSERIAL_G1K = 1, /* Gobi 1000 */
QCSERIAL_SWI = 2, /* Sierra Wireless */
+ QCSERIAL_HWI = 3, /* Huawei */
};
#define DEVICE_G1K(v, p) \
USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K
#define DEVICE_SWI(v, p) \
USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI
+#define DEVICE_HWI(v, p) \
+ USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI
static const struct usb_device_id id_table[] = {
/* Gobi 1000 devices */
@@ -157,6 +160,9 @@ static const struct usb_device_id id_table[] = {
{DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
+ /* Huawei devices */
+ {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
+
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
@@ -287,6 +293,33 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
break;
}
break;
+ case QCSERIAL_HWI:
+ /*
+ * Huawei layout:
+ * 0: AT-capable modem port
+ * 1: DM/DIAG
+ * 2: AT-capable modem port
+ * 3: CCID-compatible PCSC interface
+ * 4: QMI/net
+ * 5: NMEA
+ */
+ switch (ifnum) {
+ case 0:
+ case 2:
+ dev_dbg(dev, "Modem port found\n");
+ break;
+ case 1:
+ dev_dbg(dev, "DM/DIAG interface found\n");
+ break;
+ case 5:
+ dev_dbg(dev, "NMEA GPS interface found\n");
+ break;
+ default:
+ /* don't claim any unsupported interface */
+ altsetting = -1;
+ break;
+ }
+ break;
default:
dev_err(dev, "unsupported device layout type: %lu\n",
id->driver_info);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index ebd8f218a788..9df5d6ec7eec 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -96,8 +96,6 @@ static inline phys_addr_t xen_bus_to_phys(dma_addr_t baddr)
dma_addr_t dma = (dma_addr_t)pfn << PAGE_SHIFT;
phys_addr_t paddr = dma;
- BUG_ON(paddr != dma); /* truncation has occurred, should never happen */
-
paddr |= baddr & ~PAGE_MASK;
return paddr;
@@ -447,11 +445,11 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
BUG_ON(dir == DMA_NONE);
- xen_dma_unmap_page(hwdev, paddr, size, dir, attrs);
+ xen_dma_unmap_page(hwdev, dev_addr, size, dir, attrs);
/* NOTE: We use dev_addr here, not paddr! */
if (is_xen_swiotlb_buffer(dev_addr)) {
- swiotlb_tbl_unmap_single(hwdev, paddr, size, dir);
+ swiotlb_tbl_unmap_single(hwdev, dev_addr, size, dir);
return;
}
@@ -495,14 +493,14 @@ xen_swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
BUG_ON(dir == DMA_NONE);
if (target == SYNC_FOR_CPU)
- xen_dma_sync_single_for_cpu(hwdev, paddr, size, dir);
+ xen_dma_sync_single_for_cpu(hwdev, dev_addr, size, dir);
/* NOTE: We use dev_addr here, not paddr! */
if (is_xen_swiotlb_buffer(dev_addr))
swiotlb_tbl_sync_single(hwdev, paddr, size, dir, target);
if (target == SYNC_FOR_DEVICE)
- xen_dma_sync_single_for_cpu(hwdev, paddr, size, dir);
+ xen_dma_sync_single_for_device(hwdev, dev_addr, size, dir);
if (dir != DMA_FROM_DEVICE)
return;
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 406b29836b19..a674c114fd8e 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -127,7 +127,7 @@ affs_fix_dcache(struct inode *inode, u32 entry_ino)
{
struct dentry *dentry;
spin_lock(&inode->i_lock);
- hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
if (entry_ino == (u32)(long)dentry->d_fsdata) {
dentry->d_fsdata = (void *)inode->i_ino;
break;
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 394e90b02c5e..edb46e67d5ca 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -91,7 +91,7 @@ static struct dentry *get_next_positive_subdir(struct dentry *prev,
spin_lock(&root->d_lock);
if (prev)
- next = prev->d_u.d_child.next;
+ next = prev->d_child.next;
else {
prev = dget_dlock(root);
next = prev->d_subdirs.next;
@@ -105,13 +105,13 @@ cont:
return NULL;
}
- q = list_entry(next, struct dentry, d_u.d_child);
+ q = list_entry(next, struct dentry, d_child);
spin_lock_nested(&q->d_lock, DENTRY_D_LOCK_NESTED);
/* Already gone or negative dentry (under construction) - try next */
if (!d_count(q) || !simple_positive(q)) {
spin_unlock(&q->d_lock);
- next = q->d_u.d_child.next;
+ next = q->d_child.next;
goto cont;
}
dget_dlock(q);
@@ -161,13 +161,13 @@ again:
goto relock;
}
spin_unlock(&p->d_lock);
- next = p->d_u.d_child.next;
+ next = p->d_child.next;
p = parent;
if (next != &parent->d_subdirs)
break;
}
}
- ret = list_entry(next, struct dentry, d_u.d_child);
+ ret = list_entry(next, struct dentry, d_child);
spin_lock_nested(&ret->d_lock, DENTRY_D_LOCK_NESTED);
/* Negative dentry - try next */
@@ -461,7 +461,7 @@ found:
spin_lock(&sbi->lookup_lock);
spin_lock(&expired->d_parent->d_lock);
spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED);
- list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child);
+ list_move(&expired->d_parent->d_subdirs, &expired->d_child);
spin_unlock(&expired->d_lock);
spin_unlock(&expired->d_parent->d_lock);
spin_unlock(&sbi->lookup_lock);
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index cc87c1abac97..9e016e6fb582 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -655,7 +655,7 @@ static void autofs_clear_leaf_automount_flags(struct dentry *dentry)
/* only consider parents below dentrys in the root */
if (IS_ROOT(parent->d_parent))
return;
- d_child = &dentry->d_u.d_child;
+ d_child = &dentry->d_child;
/* Set parent managed if it's becoming empty */
if (d_child->next == &parent->d_subdirs &&
d_child->prev == &parent->d_subdirs)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0229c3720b30..1d5eff90d510 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4042,12 +4042,6 @@ again:
if (ret)
break;
- /* opt_discard */
- if (btrfs_test_opt(root, DISCARD))
- ret = btrfs_error_discard_extent(root, start,
- end + 1 - start,
- NULL);
-
clear_extent_dirty(unpin, start, end, GFP_NOFS);
btrfs_error_unpin_extent_range(root, start, end);
cond_resched();
@@ -4065,6 +4059,25 @@ again:
return 0;
}
+static void btrfs_free_pending_ordered(struct btrfs_transaction *cur_trans,
+ struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_ordered_extent *ordered;
+
+ spin_lock(&fs_info->trans_lock);
+ while (!list_empty(&cur_trans->pending_ordered)) {
+ ordered = list_first_entry(&cur_trans->pending_ordered,
+ struct btrfs_ordered_extent,
+ trans_list);
+ list_del_init(&ordered->trans_list);
+ spin_unlock(&fs_info->trans_lock);
+
+ btrfs_put_ordered_extent(ordered);
+ spin_lock(&fs_info->trans_lock);
+ }
+ spin_unlock(&fs_info->trans_lock);
+}
+
void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
struct btrfs_root *root)
{
@@ -4076,6 +4089,7 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
cur_trans->state = TRANS_STATE_UNBLOCKED;
wake_up(&root->fs_info->transaction_wait);
+ btrfs_free_pending_ordered(cur_trans, root->fs_info);
btrfs_destroy_delayed_inodes(root);
btrfs_assert_delayed_root_empty(root);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index feff017a47d9..58f014a2bba1 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4349,11 +4349,21 @@ static inline int need_do_async_reclaim(struct btrfs_space_info *space_info,
}
static int btrfs_need_do_async_reclaim(struct btrfs_space_info *space_info,
- struct btrfs_fs_info *fs_info)
+ struct btrfs_fs_info *fs_info,
+ int flush_state)
{
u64 used;
spin_lock(&space_info->lock);
+ /*
+ * We run out of space and have not got any free space via flush_space,
+ * so don't bother doing async reclaim.
+ */
+ if (flush_state > COMMIT_TRANS && space_info->full) {
+ spin_unlock(&space_info->lock);
+ return 0;
+ }
+
used = space_info->bytes_used + space_info->bytes_reserved +
space_info->bytes_pinned + space_info->bytes_readonly +
space_info->bytes_may_use;
@@ -4386,11 +4396,12 @@ static void btrfs_async_reclaim_metadata_space(struct work_struct *work)
flush_space(fs_info->fs_root, space_info, to_reclaim,
to_reclaim, flush_state);
flush_state++;
- if (!btrfs_need_do_async_reclaim(space_info, fs_info))
+ if (!btrfs_need_do_async_reclaim(space_info, fs_info,
+ flush_state))
return;
} while (flush_state <= COMMIT_TRANS);
- if (btrfs_need_do_async_reclaim(space_info, fs_info))
+ if (btrfs_need_do_async_reclaim(space_info, fs_info, flush_state))
queue_work(system_unbound_wq, work);
}
@@ -5710,7 +5721,8 @@ void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
update_global_block_rsv(fs_info);
}
-static int unpin_extent_range(struct btrfs_root *root, u64 start, u64 end)
+static int unpin_extent_range(struct btrfs_root *root, u64 start, u64 end,
+ const bool return_free_space)
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_group_cache *cache = NULL;
@@ -5734,7 +5746,8 @@ static int unpin_extent_range(struct btrfs_root *root, u64 start, u64 end)
if (start < cache->last_byte_to_unpin) {
len = min(len, cache->last_byte_to_unpin - start);
- btrfs_add_free_space(cache, start, len);
+ if (return_free_space)
+ btrfs_add_free_space(cache, start, len);
}
start += len;
@@ -5798,7 +5811,7 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
end + 1 - start, NULL);
clear_extent_dirty(unpin, start, end, GFP_NOFS);
- unpin_extent_range(root, start, end);
+ unpin_extent_range(root, start, end, true);
cond_resched();
}
@@ -9229,7 +9242,7 @@ out:
int btrfs_error_unpin_extent_range(struct btrfs_root *root, u64 start, u64 end)
{
- return unpin_extent_range(root, start, end);
+ return unpin_extent_range(root, start, end, false);
}
int btrfs_error_discard_extent(struct btrfs_root *root, u64 bytenr,
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 225302b39afb..6a98bddd8f33 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -287,8 +287,6 @@ int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len,
if (!em)
goto out;
- if (!test_bit(EXTENT_FLAG_LOGGING, &em->flags))
- list_move(&em->list, &tree->modified_extents);
em->generation = gen;
clear_bit(EXTENT_FLAG_PINNED, &em->flags);
em->mod_start = em->start;
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index ac734ec4cc20..269e21dd1506 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -220,6 +220,7 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
INIT_LIST_HEAD(&entry->work_list);
init_completion(&entry->completion);
INIT_LIST_HEAD(&entry->log_list);
+ INIT_LIST_HEAD(&entry->trans_list);
trace_btrfs_ordered_extent_add(inode, entry);
@@ -443,6 +444,8 @@ void btrfs_get_logged_extents(struct inode *inode,
ordered = rb_entry(n, struct btrfs_ordered_extent, rb_node);
if (!list_empty(&ordered->log_list))
continue;
+ if (test_bit(BTRFS_ORDERED_LOGGED, &ordered->flags))
+ continue;
list_add_tail(&ordered->log_list, logged_list);
atomic_inc(&ordered->refs);
}
@@ -472,7 +475,8 @@ void btrfs_submit_logged_extents(struct list_head *logged_list,
spin_unlock_irq(&log->log_extents_lock[index]);
}
-void btrfs_wait_logged_extents(struct btrfs_root *log, u64 transid)
+void btrfs_wait_logged_extents(struct btrfs_trans_handle *trans,
+ struct btrfs_root *log, u64 transid)
{
struct btrfs_ordered_extent *ordered;
int index = transid % 2;
@@ -497,7 +501,8 @@ void btrfs_wait_logged_extents(struct btrfs_root *log, u64 transid)
wait_event(ordered->wait, test_bit(BTRFS_ORDERED_IO_DONE,
&ordered->flags));
- btrfs_put_ordered_extent(ordered);
+ if (!test_and_set_bit(BTRFS_ORDERED_LOGGED, &ordered->flags))
+ list_add_tail(&ordered->trans_list, &trans->ordered);
spin_lock_irq(&log->log_extents_lock[index]);
}
spin_unlock_irq(&log->log_extents_lock[index]);
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index d81a274d621e..0124bffc775f 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -71,6 +71,8 @@ struct btrfs_ordered_sum {
ordered extent */
#define BTRFS_ORDERED_TRUNCATED 9 /* Set when we have to truncate an extent */
+#define BTRFS_ORDERED_LOGGED 10 /* Set when we've waited on this ordered extent
+ * in the logging code. */
struct btrfs_ordered_extent {
/* logical offset in the file */
u64 file_offset;
@@ -121,6 +123,9 @@ struct btrfs_ordered_extent {
/* If we need to wait on this to be done */
struct list_head log_list;
+ /* If the transaction needs to wait on this ordered extent */
+ struct list_head trans_list;
+
/* used to wait for the BTRFS_ORDERED_COMPLETE bit */
wait_queue_head_t wait;
@@ -197,7 +202,8 @@ void btrfs_get_logged_extents(struct inode *inode,
void btrfs_put_logged_extents(struct list_head *logged_list);
void btrfs_submit_logged_extents(struct list_head *logged_list,
struct btrfs_root *log);
-void btrfs_wait_logged_extents(struct btrfs_root *log, u64 transid);
+void btrfs_wait_logged_extents(struct btrfs_trans_handle *trans,
+ struct btrfs_root *log, u64 transid);
void btrfs_free_logged_extents(struct btrfs_root *log, u64 transid);
int __init ordered_data_init(void);
void ordered_data_exit(void);
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 3eec914710b2..0e32f21e0868 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -551,9 +551,15 @@ static int add_qgroup_item(struct btrfs_trans_handle *trans,
key.type = BTRFS_QGROUP_INFO_KEY;
key.offset = qgroupid;
+ /*
+ * Avoid a transaction abort by catching -EEXIST here. In that
+ * case, we proceed by re-initializing the existing structure
+ * on disk.
+ */
+
ret = btrfs_insert_empty_item(trans, quota_root, path, &key,
sizeof(*qgroup_info));
- if (ret)
+ if (ret && ret != -EEXIST)
goto out;
leaf = path->nodes[0];
@@ -572,7 +578,7 @@ static int add_qgroup_item(struct btrfs_trans_handle *trans,
key.type = BTRFS_QGROUP_LIMIT_KEY;
ret = btrfs_insert_empty_item(trans, quota_root, path, &key,
sizeof(*qgroup_limit));
- if (ret)
+ if (ret && ret != -EEXIST)
goto out;
leaf = path->nodes[0];
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 98a25df1c430..6c4a9cdef79b 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -220,6 +220,7 @@ loop:
INIT_LIST_HEAD(&cur_trans->pending_snapshots);
INIT_LIST_HEAD(&cur_trans->pending_chunks);
INIT_LIST_HEAD(&cur_trans->switch_commits);
+ INIT_LIST_HEAD(&cur_trans->pending_ordered);
list_add_tail(&cur_trans->list, &fs_info->trans_list);
extent_io_tree_init(&cur_trans->dirty_pages,
fs_info->btree_inode->i_mapping);
@@ -488,6 +489,7 @@ again:
h->sync = false;
INIT_LIST_HEAD(&h->qgroup_ref_list);
INIT_LIST_HEAD(&h->new_bgs);
+ INIT_LIST_HEAD(&h->ordered);
smp_mb();
if (cur_trans->state >= TRANS_STATE_BLOCKED &&
@@ -719,6 +721,12 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
if (!list_empty(&trans->new_bgs))
btrfs_create_pending_block_groups(trans, root);
+ if (!list_empty(&trans->ordered)) {
+ spin_lock(&info->trans_lock);
+ list_splice(&trans->ordered, &cur_trans->pending_ordered);
+ spin_unlock(&info->trans_lock);
+ }
+
trans->delayed_ref_updates = 0;
if (!trans->sync) {
must_run_delayed_refs =
@@ -1630,6 +1638,28 @@ static inline void btrfs_wait_delalloc_flush(struct btrfs_fs_info *fs_info)
btrfs_wait_ordered_roots(fs_info, -1);
}
+static inline void
+btrfs_wait_pending_ordered(struct btrfs_transaction *cur_trans,
+ struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_ordered_extent *ordered;
+
+ spin_lock(&fs_info->trans_lock);
+ while (!list_empty(&cur_trans->pending_ordered)) {
+ ordered = list_first_entry(&cur_trans->pending_ordered,
+ struct btrfs_ordered_extent,
+ trans_list);
+ list_del_init(&ordered->trans_list);
+ spin_unlock(&fs_info->trans_lock);
+
+ wait_event(ordered->wait, test_bit(BTRFS_ORDERED_COMPLETE,
+ &ordered->flags));
+ btrfs_put_ordered_extent(ordered);
+ spin_lock(&fs_info->trans_lock);
+ }
+ spin_unlock(&fs_info->trans_lock);
+}
+
int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
@@ -1679,6 +1709,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
}
spin_lock(&root->fs_info->trans_lock);
+ list_splice(&trans->ordered, &cur_trans->pending_ordered);
if (cur_trans->state >= TRANS_STATE_COMMIT_START) {
spin_unlock(&root->fs_info->trans_lock);
atomic_inc(&cur_trans->use_count);
@@ -1731,6 +1762,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
btrfs_wait_delalloc_flush(root->fs_info);
+ btrfs_wait_pending_ordered(cur_trans, root->fs_info);
+
btrfs_scrub_pause(root);
/*
* Ok now we need to make sure to block out any other joins while we
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 579be51b27e5..25bd9abc60e6 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -56,6 +56,7 @@ struct btrfs_transaction {
wait_queue_head_t commit_wait;
struct list_head pending_snapshots;
struct list_head pending_chunks;
+ struct list_head pending_ordered;
struct list_head switch_commits;
struct btrfs_delayed_ref_root delayed_refs;
int aborted;
@@ -105,6 +106,7 @@ struct btrfs_trans_handle {
*/
struct btrfs_root *root;
struct seq_list delayed_ref_elem;
+ struct list_head ordered;
struct list_head qgroup_ref_list;
struct list_head new_bgs;
};
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 9e1f2cd5e67a..4347890fa71d 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2596,9 +2596,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
if (atomic_read(&log_root_tree->log_commit[index2])) {
blk_finish_plug(&plug);
btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
+ btrfs_wait_logged_extents(trans, log, log_transid);
wait_log_commit(trans, log_root_tree,
root_log_ctx.log_transid);
- btrfs_free_logged_extents(log, log_transid);
mutex_unlock(&log_root_tree->log_mutex);
ret = root_log_ctx.log_ret;
goto out;
@@ -2641,7 +2641,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
btrfs_wait_marked_extents(log_root_tree,
&log_root_tree->dirty_log_pages,
EXTENT_NEW | EXTENT_DIRTY);
- btrfs_wait_logged_extents(log, log_transid);
+ btrfs_wait_logged_extents(trans, log, log_transid);
btrfs_set_super_log_root(root->fs_info->super_for_commit,
log_root_tree->node->start);
@@ -3607,7 +3607,7 @@ static int log_one_extent(struct btrfs_trans_handle *trans,
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
- btrfs_set_token_file_extent_generation(leaf, fi, em->generation,
+ btrfs_set_token_file_extent_generation(leaf, fi, trans->transid,
&token);
if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) {
skip_csum = true;
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 90b3954d48ed..9bfd1af53b08 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -673,7 +673,7 @@ static int ceph_writepages_start(struct address_space *mapping,
int rc = 0;
unsigned wsize = 1 << inode->i_blkbits;
struct ceph_osd_request *req = NULL;
- int do_sync;
+ int do_sync = 0;
u64 truncate_size, snap_size;
u32 truncate_seq;
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index c29d6ae68874..51ea03313df9 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -111,7 +111,7 @@ static int fpos_cmp(loff_t l, loff_t r)
/*
* When possible, we try to satisfy a readdir by peeking at the
* dcache. We make this work by carefully ordering dentries on
- * d_u.d_child when we initially get results back from the MDS, and
+ * d_child when we initially get results back from the MDS, and
* falling back to a "normal" sync readdir if any dentries in the dir
* are dropped.
*
@@ -147,11 +147,11 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx,
p = parent->d_subdirs.prev;
dout(" initial p %p/%p\n", p->prev, p->next);
} else {
- p = last->d_u.d_child.prev;
+ p = last->d_child.prev;
}
more:
- dentry = list_entry(p, struct dentry, d_u.d_child);
+ dentry = list_entry(p, struct dentry, d_child);
di = ceph_dentry(dentry);
while (1) {
dout(" p %p/%p %s d_subdirs %p/%p\n", p->prev, p->next,
@@ -174,7 +174,7 @@ more:
!dentry->d_inode ? " null" : "");
spin_unlock(&dentry->d_lock);
p = p->prev;
- dentry = list_entry(p, struct dentry, d_u.d_child);
+ dentry = list_entry(p, struct dentry, d_child);
di = ceph_dentry(dentry);
}
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 04c89c266cec..c3e103ff18bd 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1399,7 +1399,7 @@ retry_lookup:
/* reorder parent's d_subdirs */
spin_lock(&parent->d_lock);
spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED);
- list_move(&dn->d_u.d_child, &parent->d_subdirs);
+ list_move(&dn->d_child, &parent->d_subdirs);
spin_unlock(&dn->d_lock);
spin_unlock(&parent->d_lock);
}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index d322e7d4e123..888f2ce646e1 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -887,7 +887,7 @@ inode_has_hashed_dentries(struct inode *inode)
struct dentry *dentry;
spin_lock(&inode->i_lock);
- hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
if (!d_unhashed(dentry) || IS_ROOT(dentry)) {
spin_unlock(&inode->i_lock);
return true;
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 1da168c61d35..9bc1147a6c5d 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -92,7 +92,7 @@ static void coda_flag_children(struct dentry *parent, int flag)
struct dentry *de;
spin_lock(&parent->d_lock);
- list_for_each_entry(de, &parent->d_subdirs, d_u.d_child) {
+ list_for_each_entry(de, &parent->d_subdirs, d_child) {
/* don't know what to do with negative dentries */
if (de->d_inode )
coda_flag_inode(de->d_inode, flag);
diff --git a/fs/dcache.c b/fs/dcache.c
index 1d8b6a310822..e2dc0874a1f0 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -44,7 +44,7 @@
/*
* Usage:
* dcache->d_inode->i_lock protects:
- * - i_dentry, d_alias, d_inode of aliases
+ * - i_dentry, d_u.d_alias, d_inode of aliases
* dcache_hash_bucket lock protects:
* - the dcache hash table
* s_anon bl list spinlock protects:
@@ -59,7 +59,7 @@
* - d_unhashed()
* - d_parent and d_subdirs
* - childrens' d_child and d_parent
- * - d_alias, d_inode
+ * - d_u.d_alias, d_inode
*
* Ordering:
* dentry->d_inode->i_lock
@@ -239,7 +239,6 @@ static void __d_free(struct rcu_head *head)
{
struct dentry *dentry = container_of(head, struct dentry, d_u.d_rcu);
- WARN_ON(!hlist_unhashed(&dentry->d_alias));
if (dname_external(dentry))
kfree(dentry->d_name.name);
kmem_cache_free(dentry_cache, dentry);
@@ -247,6 +246,8 @@ static void __d_free(struct rcu_head *head)
static void dentry_free(struct dentry *dentry)
{
+ WARN_ON(!hlist_unhashed(&dentry->d_u.d_alias));
+
/* if dentry was never visible to RCU, immediate free is OK */
if (!(dentry->d_flags & DCACHE_RCUACCESS))
__d_free(&dentry->d_u.d_rcu);
@@ -280,7 +281,7 @@ static void dentry_iput(struct dentry * dentry)
struct inode *inode = dentry->d_inode;
if (inode) {
dentry->d_inode = NULL;
- hlist_del_init(&dentry->d_alias);
+ hlist_del_init(&dentry->d_u.d_alias);
spin_unlock(&dentry->d_lock);
spin_unlock(&inode->i_lock);
if (!inode->i_nlink)
@@ -305,7 +306,7 @@ static void dentry_unlink_inode(struct dentry * dentry)
struct inode *inode = dentry->d_inode;
__d_clear_type(dentry);
dentry->d_inode = NULL;
- hlist_del_init(&dentry->d_alias);
+ hlist_del_init(&dentry->d_u.d_alias);
dentry_rcuwalk_barrier(dentry);
spin_unlock(&dentry->d_lock);
spin_unlock(&inode->i_lock);
@@ -465,7 +466,7 @@ static void __dentry_kill(struct dentry *dentry)
}
/* if it was on the hash then remove it */
__d_drop(dentry);
- list_del(&dentry->d_u.d_child);
+ __list_del_entry(&dentry->d_child);
/*
* Inform d_walk() that we are no longer attached to the
* dentry tree
@@ -749,7 +750,7 @@ static struct dentry *__d_find_alias(struct inode *inode, int want_discon)
again:
discon_alias = NULL;
- hlist_for_each_entry(alias, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
spin_lock(&alias->d_lock);
if (S_ISDIR(inode->i_mode) || !d_unhashed(alias)) {
if (IS_ROOT(alias) &&
@@ -802,7 +803,7 @@ void d_prune_aliases(struct inode *inode)
struct dentry *dentry;
restart:
spin_lock(&inode->i_lock);
- hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
spin_lock(&dentry->d_lock);
if (!dentry->d_lockref.count) {
/*
@@ -1087,7 +1088,7 @@ repeat:
resume:
while (next != &this_parent->d_subdirs) {
struct list_head *tmp = next;
- struct dentry *dentry = list_entry(tmp, struct dentry, d_u.d_child);
+ struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
next = tmp->next;
spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
@@ -1119,33 +1120,31 @@ resume:
/*
* All done at this level ... ascend and resume the search.
*/
+ rcu_read_lock();
+ascend:
if (this_parent != parent) {
struct dentry *child = this_parent;
this_parent = child->d_parent;
- rcu_read_lock();
spin_unlock(&child->d_lock);
spin_lock(&this_parent->d_lock);
- /*
- * might go back up the wrong parent if we have had a rename
- * or deletion
- */
- if (this_parent != child->d_parent ||
- (child->d_flags & DCACHE_DENTRY_KILLED) ||
- need_seqretry(&rename_lock, seq)) {
- spin_unlock(&this_parent->d_lock);
- rcu_read_unlock();
+ /* might go back up the wrong parent if we have had a rename. */
+ if (need_seqretry(&rename_lock, seq))
goto rename_retry;
+ next = child->d_child.next;
+ while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED)) {
+ if (next == &this_parent->d_subdirs)
+ goto ascend;
+ child = list_entry(next, struct dentry, d_child);
+ next = next->next;
}
rcu_read_unlock();
- next = child->d_u.d_child.next;
goto resume;
}
- if (need_seqretry(&rename_lock, seq)) {
- spin_unlock(&this_parent->d_lock);
+ if (need_seqretry(&rename_lock, seq))
goto rename_retry;
- }
+ rcu_read_unlock();
if (finish)
finish(data);
@@ -1155,6 +1154,9 @@ out_unlock:
return;
rename_retry:
+ spin_unlock(&this_parent->d_lock);
+ rcu_read_unlock();
+ BUG_ON(seq & 1);
if (!retry)
return;
seq = 1;
@@ -1474,8 +1476,8 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
INIT_HLIST_BL_NODE(&dentry->d_hash);
INIT_LIST_HEAD(&dentry->d_lru);
INIT_LIST_HEAD(&dentry->d_subdirs);
- INIT_HLIST_NODE(&dentry->d_alias);
- INIT_LIST_HEAD(&dentry->d_u.d_child);
+ INIT_HLIST_NODE(&dentry->d_u.d_alias);
+ INIT_LIST_HEAD(&dentry->d_child);
d_set_d_op(dentry, dentry->d_sb->s_d_op);
this_cpu_inc(nr_dentry);
@@ -1505,7 +1507,7 @@ struct dentry *d_alloc(struct dentry * parent, const struct qstr *name)
*/
__dget_dlock(parent);
dentry->d_parent = parent;
- list_add(&dentry->d_u.d_child, &parent->d_subdirs);
+ list_add(&dentry->d_child, &parent->d_subdirs);
spin_unlock(&parent->d_lock);
return dentry;
@@ -1598,7 +1600,7 @@ static void __d_instantiate(struct dentry *dentry, struct inode *inode)
spin_lock(&dentry->d_lock);
__d_set_type(dentry, add_flags);
if (inode)
- hlist_add_head(&dentry->d_alias, &inode->i_dentry);
+ hlist_add_head(&dentry->d_u.d_alias, &inode->i_dentry);
dentry->d_inode = inode;
dentry_rcuwalk_barrier(dentry);
spin_unlock(&dentry->d_lock);
@@ -1622,7 +1624,7 @@ static void __d_instantiate(struct dentry *dentry, struct inode *inode)
void d_instantiate(struct dentry *entry, struct inode * inode)
{
- BUG_ON(!hlist_unhashed(&entry->d_alias));
+ BUG_ON(!hlist_unhashed(&entry->d_u.d_alias));
if (inode)
spin_lock(&inode->i_lock);
__d_instantiate(entry, inode);
@@ -1661,7 +1663,7 @@ static struct dentry *__d_instantiate_unique(struct dentry *entry,
return NULL;
}
- hlist_for_each_entry(alias, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
/*
* Don't need alias->d_lock here, because aliases with
* d_parent == entry->d_parent are not subject to name or
@@ -1687,7 +1689,7 @@ struct dentry *d_instantiate_unique(struct dentry *entry, struct inode *inode)
{
struct dentry *result;
- BUG_ON(!hlist_unhashed(&entry->d_alias));
+ BUG_ON(!hlist_unhashed(&entry->d_u.d_alias));
if (inode)
spin_lock(&inode->i_lock);
@@ -1718,7 +1720,7 @@ EXPORT_SYMBOL(d_instantiate_unique);
*/
int d_instantiate_no_diralias(struct dentry *entry, struct inode *inode)
{
- BUG_ON(!hlist_unhashed(&entry->d_alias));
+ BUG_ON(!hlist_unhashed(&entry->d_u.d_alias));
spin_lock(&inode->i_lock);
if (S_ISDIR(inode->i_mode) && !hlist_empty(&inode->i_dentry)) {
@@ -1757,7 +1759,7 @@ static struct dentry * __d_find_any_alias(struct inode *inode)
if (hlist_empty(&inode->i_dentry))
return NULL;
- alias = hlist_entry(inode->i_dentry.first, struct dentry, d_alias);
+ alias = hlist_entry(inode->i_dentry.first, struct dentry, d_u.d_alias);
__dget(alias);
return alias;
}
@@ -1834,7 +1836,7 @@ struct dentry *d_obtain_alias(struct inode *inode)
spin_lock(&tmp->d_lock);
tmp->d_inode = inode;
tmp->d_flags |= add_flags;
- hlist_add_head(&tmp->d_alias, &inode->i_dentry);
+ hlist_add_head(&tmp->d_u.d_alias, &inode->i_dentry);
hlist_bl_lock(&tmp->d_sb->s_anon);
hlist_bl_add_head(&tmp->d_hash, &tmp->d_sb->s_anon);
hlist_bl_unlock(&tmp->d_sb->s_anon);
@@ -2277,7 +2279,7 @@ int d_validate(struct dentry *dentry, struct dentry *dparent)
struct dentry *child;
spin_lock(&dparent->d_lock);
- list_for_each_entry(child, &dparent->d_subdirs, d_u.d_child) {
+ list_for_each_entry(child, &dparent->d_subdirs, d_child) {
if (dentry == child) {
spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
__dget_dlock(dentry);
@@ -2436,6 +2438,8 @@ static void switch_names(struct dentry *dentry, struct dentry *target,
*/
unsigned int i;
BUILD_BUG_ON(!IS_ALIGNED(DNAME_INLINE_LEN, sizeof(long)));
+ kmemcheck_mark_initialized(dentry->d_iname, DNAME_INLINE_LEN);
+ kmemcheck_mark_initialized(target->d_iname, DNAME_INLINE_LEN);
if (!exchange) {
memcpy(dentry->d_iname, target->d_name.name,
target->d_name.len + 1);
@@ -2545,8 +2549,8 @@ static void __d_move(struct dentry *dentry, struct dentry *target,
d_hash(dentry->d_parent, dentry->d_name.hash));
}
- list_del(&dentry->d_u.d_child);
- list_del(&target->d_u.d_child);
+ list_del(&dentry->d_child);
+ list_del(&target->d_child);
/* Switch the names.. */
switch_names(dentry, target, exchange);
@@ -2555,15 +2559,15 @@ static void __d_move(struct dentry *dentry, struct dentry *target,
if (IS_ROOT(dentry)) {
dentry->d_parent = target->d_parent;
target->d_parent = target;
- INIT_LIST_HEAD(&target->d_u.d_child);
+ INIT_LIST_HEAD(&target->d_child);
} else {
swap(dentry->d_parent, target->d_parent);
/* And add them back to the (new) parent lists */
- list_add(&target->d_u.d_child, &target->d_parent->d_subdirs);
+ list_add(&target->d_child, &target->d_parent->d_subdirs);
}
- list_add(&dentry->d_u.d_child, &dentry->d_parent->d_subdirs);
+ list_add(&dentry->d_child, &dentry->d_parent->d_subdirs);
write_seqcount_end(&target->d_seq);
write_seqcount_end(&dentry->d_seq);
@@ -2690,9 +2694,9 @@ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon)
switch_names(dentry, anon, false);
dentry->d_parent = dentry;
- list_del_init(&dentry->d_u.d_child);
+ list_del_init(&dentry->d_child);
anon->d_parent = dparent;
- list_move(&anon->d_u.d_child, &dparent->d_subdirs);
+ list_move(&anon->d_child, &dparent->d_subdirs);
write_seqcount_end(&dentry->d_seq);
write_seqcount_end(&anon->d_seq);
@@ -3324,7 +3328,7 @@ void d_tmpfile(struct dentry *dentry, struct inode *inode)
{
inode_dec_link_count(inode);
BUG_ON(dentry->d_name.name != dentry->d_iname ||
- !hlist_unhashed(&dentry->d_alias) ||
+ !hlist_unhashed(&dentry->d_u.d_alias) ||
!d_unlinked(dentry));
spin_lock(&dentry->d_parent->d_lock);
spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 16a46b6a6fee..dc240009e8ec 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -553,7 +553,7 @@ void debugfs_remove_recursive(struct dentry *dentry)
* use the d_u.d_child as the rcu head and corrupt this list.
*/
spin_lock(&parent->d_lock);
- list_for_each_entry(child, &parent->d_subdirs, d_u.d_child) {
+ list_for_each_entry(child, &parent->d_subdirs, d_child) {
if (!debugfs_positive(child))
continue;
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 2f6735dbf1a9..31b148f3e772 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1917,7 +1917,6 @@ ecryptfs_decode_from_filename(unsigned char *dst, size_t *dst_size,
break;
case 2:
dst[dst_byte_offset++] |= (src_byte);
- dst[dst_byte_offset] = 0;
current_bit_offset = 0;
break;
}
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index db0fad3269c0..a06ad2f7ed80 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -190,23 +190,11 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
{
int rc = 0;
struct ecryptfs_crypt_stat *crypt_stat = NULL;
- struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
struct dentry *ecryptfs_dentry = file->f_path.dentry;
/* Private value of ecryptfs_dentry allocated in
* ecryptfs_lookup() */
struct ecryptfs_file_info *file_info;
- mount_crypt_stat = &ecryptfs_superblock_to_private(
- ecryptfs_dentry->d_sb)->mount_crypt_stat;
- if ((mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
- && ((file->f_flags & O_WRONLY) || (file->f_flags & O_RDWR)
- || (file->f_flags & O_CREAT) || (file->f_flags & O_TRUNC)
- || (file->f_flags & O_APPEND))) {
- printk(KERN_WARNING "Mount has encrypted view enabled; "
- "files may only be read\n");
- rc = -EPERM;
- goto out;
- }
/* Released in ecryptfs_release or end of function if failure */
file_info = kmem_cache_zalloc(ecryptfs_file_info_cache, GFP_KERNEL);
ecryptfs_set_file_private(file, file_info);
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 1b119d3bf924..34eb8433d93f 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -493,6 +493,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
{
struct super_block *s;
struct ecryptfs_sb_info *sbi;
+ struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
struct ecryptfs_dentry_info *root_info;
const char *err = "Getting sb failed";
struct inode *inode;
@@ -511,6 +512,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
err = "Error parsing options";
goto out;
}
+ mount_crypt_stat = &sbi->mount_crypt_stat;
s = sget(fs_type, NULL, set_anon_super, flags, NULL);
if (IS_ERR(s)) {
@@ -557,11 +559,19 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
/**
* Set the POSIX ACL flag based on whether they're enabled in the lower
- * mount. Force a read-only eCryptfs mount if the lower mount is ro.
- * Allow a ro eCryptfs mount even when the lower mount is rw.
+ * mount.
*/
s->s_flags = flags & ~MS_POSIXACL;
- s->s_flags |= path.dentry->d_sb->s_flags & (MS_RDONLY | MS_POSIXACL);
+ s->s_flags |= path.dentry->d_sb->s_flags & MS_POSIXACL;
+
+ /**
+ * Force a read-only eCryptfs mount when:
+ * 1) The lower mount is ro
+ * 2) The ecryptfs_encrypted_view mount option is specified
+ */
+ if (path.dentry->d_sb->s_flags & MS_RDONLY ||
+ mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
+ s->s_flags |= MS_RDONLY;
s->s_maxbytes = path.dentry->d_sb->s_maxbytes;
s->s_blocksize = path.dentry->d_sb->s_blocksize;
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index b01fbfb51f43..a3aa6baad1a1 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -50,7 +50,7 @@ find_acceptable_alias(struct dentry *result,
inode = result->d_inode;
spin_lock(&inode->i_lock);
- hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
dget(dentry);
spin_unlock(&inode->i_lock);
if (toput)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index be568b7311d6..cd4fd8aa3c80 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -478,12 +478,28 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
* write_inode()
*/
spin_lock(&inode->i_lock);
- /* Clear I_DIRTY_PAGES if we've written out all dirty pages */
- if (!mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
- inode->i_state &= ~I_DIRTY_PAGES;
+
dirty = inode->i_state & I_DIRTY;
- inode->i_state &= ~(I_DIRTY_SYNC | I_DIRTY_DATASYNC);
+ inode->i_state &= ~I_DIRTY;
+
+ /*
+ * Paired with smp_mb() in __mark_inode_dirty(). This allows
+ * __mark_inode_dirty() to test i_state without grabbing i_lock -
+ * either they see the I_DIRTY bits cleared or we see the dirtied
+ * inode.
+ *
+ * I_DIRTY_PAGES is always cleared together above even if @mapping
+ * still has dirty pages. The flag is reinstated after smp_mb() if
+ * necessary. This guarantees that either __mark_inode_dirty()
+ * sees clear I_DIRTY_PAGES or we see PAGECACHE_TAG_DIRTY.
+ */
+ smp_mb();
+
+ if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
+ inode->i_state |= I_DIRTY_PAGES;
+
spin_unlock(&inode->i_lock);
+
/* Don't write the inode if only I_DIRTY_PAGES was set */
if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) {
int err = write_inode(inode, wbc);
@@ -1147,12 +1163,11 @@ void __mark_inode_dirty(struct inode *inode, int flags)
}
/*
- * make sure that changes are seen by all cpus before we test i_state
- * -- mikulas
+ * Paired with smp_mb() in __writeback_single_inode() for the
+ * following lockless i_state test. See there for details.
*/
smp_mb();
- /* avoid the locking if we can */
if ((inode->i_state & flags) == flags)
return;
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index f488bbae541a..735d7522a3a9 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -30,6 +30,7 @@ struct rock_state {
int cont_size;
int cont_extent;
int cont_offset;
+ int cont_loops;
struct inode *inode;
};
@@ -73,6 +74,9 @@ static void init_rock_state(struct rock_state *rs, struct inode *inode)
rs->inode = inode;
}
+/* Maximum number of Rock Ridge continuation entries */
+#define RR_MAX_CE_ENTRIES 32
+
/*
* Returns 0 if the caller should continue scanning, 1 if the scan must end
* and -ve on error.
@@ -105,6 +109,8 @@ static int rock_continue(struct rock_state *rs)
goto out;
}
ret = -EIO;
+ if (++rs->cont_loops >= RR_MAX_CE_ENTRIES)
+ goto out;
bh = sb_bread(rs->inode->i_sb, rs->cont_extent);
if (bh) {
memcpy(rs->buffer, bh->b_data + rs->cont_offset,
@@ -356,6 +362,9 @@ repeat:
rs.cont_size = isonum_733(rr->u.CE.size);
break;
case SIG('E', 'R'):
+ /* Invalid length of ER tag id? */
+ if (rr->u.ER.len_id + offsetof(struct rock_ridge, u.ER.data) > rr->len)
+ goto out;
ISOFS_SB(inode->i_sb)->s_rock = 1;
printk(KERN_DEBUG "ISO 9660 Extensions: ");
{
diff --git a/fs/libfs.c b/fs/libfs.c
index 88e3e00e2eca..e801b983b46b 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -114,18 +114,18 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
spin_lock(&dentry->d_lock);
/* d_lock not required for cursor */
- list_del(&cursor->d_u.d_child);
+ list_del(&cursor->d_child);
p = dentry->d_subdirs.next;
while (n && p != &dentry->d_subdirs) {
struct dentry *next;
- next = list_entry(p, struct dentry, d_u.d_child);
+ next = list_entry(p, struct dentry, d_child);
spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
if (simple_positive(next))
n--;
spin_unlock(&next->d_lock);
p = p->next;
}
- list_add_tail(&cursor->d_u.d_child, p);
+ list_add_tail(&cursor->d_child, p);
spin_unlock(&dentry->d_lock);
}
}
@@ -150,7 +150,7 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
{
struct dentry *dentry = file->f_path.dentry;
struct dentry *cursor = file->private_data;
- struct list_head *p, *q = &cursor->d_u.d_child;
+ struct list_head *p, *q = &cursor->d_child;
if (!dir_emit_dots(file, ctx))
return 0;
@@ -159,7 +159,7 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
list_move(q, &dentry->d_subdirs);
for (p = q->next; p != &dentry->d_subdirs; p = p->next) {
- struct dentry *next = list_entry(p, struct dentry, d_u.d_child);
+ struct dentry *next = list_entry(p, struct dentry, d_child);
spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
if (!simple_positive(next)) {
spin_unlock(&next->d_lock);
@@ -287,7 +287,7 @@ int simple_empty(struct dentry *dentry)
int ret = 0;
spin_lock(&dentry->d_lock);
- list_for_each_entry(child, &dentry->d_subdirs, d_u.d_child) {
+ list_for_each_entry(child, &dentry->d_subdirs, d_child) {
spin_lock_nested(&child->d_lock, DENTRY_D_LOCK_NESTED);
if (simple_positive(child)) {
spin_unlock(&child->d_lock);
diff --git a/fs/namespace.c b/fs/namespace.c
index f24161a45b06..b1a14ad2ca01 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1304,6 +1304,8 @@ void umount_tree(struct mount *mnt, int how)
}
if (last) {
last->mnt_hash.next = unmounted.first;
+ if (unmounted.first)
+ unmounted.first->pprev = &last->mnt_hash.next;
unmounted.first = tmp_list.first;
unmounted.first->pprev = &unmounted.first;
}
@@ -1448,6 +1450,9 @@ SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
goto dput_and_out;
if (mnt->mnt.mnt_flags & MNT_LOCKED)
goto dput_and_out;
+ retval = -EPERM;
+ if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))
+ goto dput_and_out;
retval = do_umount(mnt, flags);
dput_and_out:
@@ -1973,7 +1978,13 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
}
if ((mnt->mnt.mnt_flags & MNT_LOCK_NODEV) &&
!(mnt_flags & MNT_NODEV)) {
- return -EPERM;
+ /* Was the nodev implicitly added in mount? */
+ if ((mnt->mnt_ns->user_ns != &init_user_ns) &&
+ !(sb->s_type->fs_flags & FS_USERNS_DEV_MOUNT)) {
+ mnt_flags |= MNT_NODEV;
+ } else {
+ return -EPERM;
+ }
}
if ((mnt->mnt.mnt_flags & MNT_LOCK_NOSUID) &&
!(mnt_flags & MNT_NOSUID)) {
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 08b8ea8c353e..3a8ed0fb07be 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -406,7 +406,7 @@ ncp_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos)
spin_lock(&parent->d_lock);
next = parent->d_subdirs.next;
while (next != &parent->d_subdirs) {
- dent = list_entry(next, struct dentry, d_u.d_child);
+ dent = list_entry(next, struct dentry, d_child);
if ((unsigned long)dent->d_fsdata == fpos) {
if (dent->d_inode)
dget(dent);
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index d5659d96ee7f..cf7e043a9447 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -447,7 +447,6 @@ static long __ncp_ioctl(struct inode *inode, unsigned int cmd, unsigned long arg
result = -EIO;
}
}
- result = 0;
}
mutex_unlock(&server->root_setup_lock);
diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
index 32c06587351a..6d5e7c56c79d 100644
--- a/fs/ncpfs/ncplib_kernel.h
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -194,7 +194,7 @@ ncp_renew_dentries(struct dentry *parent)
spin_lock(&parent->d_lock);
next = parent->d_subdirs.next;
while (next != &parent->d_subdirs) {
- dentry = list_entry(next, struct dentry, d_u.d_child);
+ dentry = list_entry(next, struct dentry, d_child);
if (dentry->d_fsdata == NULL)
ncp_age_dentry(server, dentry);
@@ -216,7 +216,7 @@ ncp_invalidate_dircache_entries(struct dentry *parent)
spin_lock(&parent->d_lock);
next = parent->d_subdirs.next;
while (next != &parent->d_subdirs) {
- dentry = list_entry(next, struct dentry, d_u.d_child);
+ dentry = list_entry(next, struct dentry, d_child);
dentry->d_fsdata = NULL;
ncp_age_dentry(server, dentry);
next = next->next;
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index b94f80420a58..40f36b421df9 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -58,7 +58,7 @@ static int nfs_superblock_set_dummy_root(struct super_block *sb, struct inode *i
*/
spin_lock(&sb->s_root->d_inode->i_lock);
spin_lock(&sb->s_root->d_lock);
- hlist_del_init(&sb->s_root->d_alias);
+ hlist_del_init(&sb->s_root->d_u.d_alias);
spin_unlock(&sb->s_root->d_lock);
spin_unlock(&sb->s_root->d_inode->i_lock);
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2768d382a4d1..c401b4de6b01 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7581,6 +7581,9 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
dprintk("--> %s\n", __func__);
+ /* nfs4_layoutget_release calls pnfs_put_layout_hdr */
+ pnfs_get_layout_hdr(NFS_I(inode)->layout);
+
lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
if (!lgp->args.layout.pages) {
nfs4_layoutget_release(lgp);
@@ -7593,9 +7596,6 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
lgp->res.seq_res.sr_slot = NULL;
nfs4_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0);
- /* nfs4_layoutget_release calls pnfs_put_layout_hdr */
- pnfs_get_layout_hdr(NFS_I(inode)->layout);
-
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return ERR_CAST(task);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2204e1fe5725..e34d9842be3e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1310,15 +1310,14 @@ static int copy_cred(struct svc_cred *target, struct svc_cred *source)
return 0;
}
-static long long
+static int
compare_blob(const struct xdr_netobj *o1, const struct xdr_netobj *o2)
{
- long long res;
-
- res = o1->len - o2->len;
- if (res)
- return res;
- return (long long)memcmp(o1->data, o2->data, o1->len);
+ if (o1->len < o2->len)
+ return -1;
+ if (o1->len > o2->len)
+ return 1;
+ return memcmp(o1->data, o2->data, o1->len);
}
static int same_name(const char *n1, const char *n2)
@@ -1502,7 +1501,7 @@ add_clp_to_name_tree(struct nfs4_client *new_clp, struct rb_root *root)
static struct nfs4_client *
find_clp_in_name_tree(struct xdr_netobj *name, struct rb_root *root)
{
- long long cmp;
+ int cmp;
struct rb_node *node = root->rb_node;
struct nfs4_client *clp;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 96338175a2fe..dda2e4d91a25 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1777,9 +1777,12 @@ static __be32 nfsd4_encode_components_esc(struct xdr_stream *xdr, char sep,
}
else
end++;
+ if (found_esc)
+ end = next;
+
str = end;
}
- pathlen = htonl(xdr->buf->len - pathlen_offset);
+ pathlen = htonl(count);
write_bytes_to_xdr_buf(xdr->buf, pathlen_offset, &pathlen, 4);
return 0;
}
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 9d3e9c50066a..700129940c6e 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -63,14 +63,14 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode)
spin_lock(&inode->i_lock);
/* run all of the dentries associated with this inode. Since this is a
* directory, there damn well better only be one item on this list */
- hlist_for_each_entry(alias, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
struct dentry *child;
/* run all of the children of the original inode and fix their
* d_flags to indicate parental interest (their parent is the
* original inode) */
spin_lock(&alias->d_lock);
- list_for_each_entry(child, &alias->d_subdirs, d_u.d_child) {
+ list_for_each_entry(child, &alias->d_subdirs, d_child) {
if (!child->d_inode)
continue;
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 4a231a166cf8..c04183b008da 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -894,7 +894,7 @@ void ocfs2_unlock_and_free_pages(struct page **pages, int num_pages)
}
}
-static void ocfs2_free_write_ctxt(struct ocfs2_write_ctxt *wc)
+static void ocfs2_unlock_pages(struct ocfs2_write_ctxt *wc)
{
int i;
@@ -915,7 +915,11 @@ static void ocfs2_free_write_ctxt(struct ocfs2_write_ctxt *wc)
page_cache_release(wc->w_target_page);
}
ocfs2_unlock_and_free_pages(wc->w_pages, wc->w_num_pages);
+}
+static void ocfs2_free_write_ctxt(struct ocfs2_write_ctxt *wc)
+{
+ ocfs2_unlock_pages(wc);
brelse(wc->w_di_bh);
kfree(wc);
}
@@ -2041,11 +2045,19 @@ out_write_size:
ocfs2_update_inode_fsync_trans(handle, inode, 1);
ocfs2_journal_dirty(handle, wc->w_di_bh);
+ /* unlock pages before dealloc since it needs acquiring j_trans_barrier
+ * lock, or it will cause a deadlock since journal commit threads holds
+ * this lock and will ask for the page lock when flushing the data.
+ * put it here to preserve the unlock order.
+ */
+ ocfs2_unlock_pages(wc);
+
ocfs2_commit_trans(osb, handle);
ocfs2_run_deallocs(osb, &wc->w_dealloc);
- ocfs2_free_write_ctxt(wc);
+ brelse(wc->w_di_bh);
+ kfree(wc);
return copied;
}
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index e2e05a106beb..92edcfc23c1c 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -172,7 +172,7 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
struct dentry *dentry;
spin_lock(&inode->i_lock);
- hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
spin_lock(&dentry->d_lock);
if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
trace_ocfs2_find_local_alias(dentry->d_name.len,
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 2d696b0c93bf..71d855747fe8 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2526,6 +2526,57 @@ static const struct file_operations proc_projid_map_operations = {
.llseek = seq_lseek,
.release = proc_id_map_release,
};
+
+static int proc_setgroups_open(struct inode *inode, struct file *file)
+{
+ struct user_namespace *ns = NULL;
+ struct task_struct *task;
+ int ret;
+
+ ret = -ESRCH;
+ task = get_proc_task(inode);
+ if (task) {
+ rcu_read_lock();
+ ns = get_user_ns(task_cred_xxx(task, user_ns));
+ rcu_read_unlock();
+ put_task_struct(task);
+ }
+ if (!ns)
+ goto err;
+
+ if (file->f_mode & FMODE_WRITE) {
+ ret = -EACCES;
+ if (!ns_capable(ns, CAP_SYS_ADMIN))
+ goto err_put_ns;
+ }
+
+ ret = single_open(file, &proc_setgroups_show, ns);
+ if (ret)
+ goto err_put_ns;
+
+ return 0;
+err_put_ns:
+ put_user_ns(ns);
+err:
+ return ret;
+}
+
+static int proc_setgroups_release(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq = file->private_data;
+ struct user_namespace *ns = seq->private;
+ int ret = single_release(inode, file);
+ put_user_ns(ns);
+ return ret;
+}
+
+static const struct file_operations proc_setgroups_operations = {
+ .open = proc_setgroups_open,
+ .write = proc_setgroups_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = proc_setgroups_release,
+};
#endif /* CONFIG_USER_NS */
static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns,
@@ -2634,6 +2685,7 @@ static const struct pid_entry tgid_base_stuff[] = {
REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
REG("projid_map", S_IRUGO|S_IWUSR, proc_projid_map_operations),
+ REG("setgroups", S_IRUGO|S_IWUSR, proc_setgroups_operations),
#endif
#ifdef CONFIG_CHECKPOINT_RESTORE
REG("timers", S_IRUGO, proc_timers_operations),
@@ -2969,6 +3021,7 @@ static const struct pid_entry tid_base_stuff[] = {
REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
REG("projid_map", S_IRUGO|S_IWUSR, proc_projid_map_operations),
+ REG("setgroups", S_IRUGO|S_IWUSR, proc_setgroups_operations),
#endif
};
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index bf2d03f8fd3e..510413eb25b8 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -159,7 +159,7 @@ static int show_stat(struct seq_file *p, void *v)
/* sum again ? it could be updated? */
for_each_irq_nr(j)
- seq_put_decimal_ull(p, ' ', kstat_irqs(j));
+ seq_put_decimal_ull(p, ' ', kstat_irqs_usr(j));
seq_printf(p,
"\nctxt %llu\n"
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 3b5744306ed8..5fa34243b1ae 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -61,6 +61,11 @@ module_param(mem_size, ulong, 0400);
MODULE_PARM_DESC(mem_size,
"size of reserved RAM used to store oops/panic logs");
+static unsigned int mem_type;
+module_param(mem_type, uint, 0600);
+MODULE_PARM_DESC(mem_type,
+ "set to 1 to try to use unbuffered memory (default 0)");
+
static int dump_oops = 1;
module_param(dump_oops, int, 0600);
MODULE_PARM_DESC(dump_oops,
@@ -79,6 +84,7 @@ struct ramoops_context {
struct persistent_ram_zone *fprz;
phys_addr_t phys_addr;
unsigned long size;
+ unsigned int memtype;
size_t record_size;
size_t console_size;
size_t ftrace_size;
@@ -358,7 +364,8 @@ static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
size_t sz = cxt->record_size;
cxt->przs[i] = persistent_ram_new(*paddr, sz, 0,
- &cxt->ecc_info);
+ &cxt->ecc_info,
+ cxt->memtype);
if (IS_ERR(cxt->przs[i])) {
err = PTR_ERR(cxt->przs[i]);
dev_err(dev, "failed to request mem region (0x%zx@0x%llx): %d\n",
@@ -388,7 +395,7 @@ static int ramoops_init_prz(struct device *dev, struct ramoops_context *cxt,
return -ENOMEM;
}
- *prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info);
+ *prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info, cxt->memtype);
if (IS_ERR(*prz)) {
int err = PTR_ERR(*prz);
@@ -435,6 +442,7 @@ static int ramoops_probe(struct platform_device *pdev)
cxt->size = pdata->mem_size;
cxt->phys_addr = pdata->mem_address;
+ cxt->memtype = pdata->mem_type;
cxt->record_size = pdata->record_size;
cxt->console_size = pdata->console_size;
cxt->ftrace_size = pdata->ftrace_size;
@@ -564,6 +572,7 @@ static void ramoops_register_dummy(void)
dummy_data->mem_size = mem_size;
dummy_data->mem_address = mem_address;
+ dummy_data->mem_type = 0;
dummy_data->record_size = record_size;
dummy_data->console_size = ramoops_console_size;
dummy_data->ftrace_size = ramoops_ftrace_size;
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index 34a1e5aa848c..8475def65880 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -380,7 +380,8 @@ void persistent_ram_zap(struct persistent_ram_zone *prz)
persistent_ram_update_header_ecc(prz);
}
-static void *persistent_ram_vmap(phys_addr_t start, size_t size)
+static void *persistent_ram_vmap(phys_addr_t start, size_t size,
+ unsigned int memtype)
{
struct page **pages;
phys_addr_t page_start;
@@ -392,7 +393,10 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size)
page_start = start - offset_in_page(start);
page_count = DIV_ROUND_UP(size + offset_in_page(start), PAGE_SIZE);
- prot = pgprot_noncached(PAGE_KERNEL);
+ if (memtype)
+ prot = pgprot_noncached(PAGE_KERNEL);
+ else
+ prot = pgprot_writecombine(PAGE_KERNEL);
pages = kmalloc(sizeof(struct page *) * page_count, GFP_KERNEL);
if (!pages) {
@@ -411,8 +415,11 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size)
return vaddr;
}
-static void *persistent_ram_iomap(phys_addr_t start, size_t size)
+static void *persistent_ram_iomap(phys_addr_t start, size_t size,
+ unsigned int memtype)
{
+ void *va;
+
if (!request_mem_region(start, size, "persistent_ram")) {
pr_err("request mem region (0x%llx@0x%llx) failed\n",
(unsigned long long)size, (unsigned long long)start);
@@ -422,19 +429,24 @@ static void *persistent_ram_iomap(phys_addr_t start, size_t size)
buffer_start_add = buffer_start_add_locked;
buffer_size_add = buffer_size_add_locked;
- return ioremap(start, size);
+ if (memtype)
+ va = ioremap(start, size);
+ else
+ va = ioremap_wc(start, size);
+
+ return va;
}
static int persistent_ram_buffer_map(phys_addr_t start, phys_addr_t size,
- struct persistent_ram_zone *prz)
+ struct persistent_ram_zone *prz, int memtype)
{
prz->paddr = start;
prz->size = size;
if (pfn_valid(start >> PAGE_SHIFT))
- prz->vaddr = persistent_ram_vmap(start, size);
+ prz->vaddr = persistent_ram_vmap(start, size, memtype);
else
- prz->vaddr = persistent_ram_iomap(start, size);
+ prz->vaddr = persistent_ram_iomap(start, size, memtype);
if (!prz->vaddr) {
pr_err("%s: Failed to map 0x%llx pages at 0x%llx\n", __func__,
@@ -500,7 +512,8 @@ void persistent_ram_free(struct persistent_ram_zone *prz)
}
struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
- u32 sig, struct persistent_ram_ecc_info *ecc_info)
+ u32 sig, struct persistent_ram_ecc_info *ecc_info,
+ unsigned int memtype)
{
struct persistent_ram_zone *prz;
int ret = -ENOMEM;
@@ -511,7 +524,7 @@ struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
goto err;
}
- ret = persistent_ram_buffer_map(start, size, prz);
+ ret = persistent_ram_buffer_map(start, size, prz, memtype);
if (ret)
goto err;
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 5fd8f57e07fc..27575041bea3 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2161,6 +2161,9 @@ error_unlocked:
reiserfs_write_unlock(s);
}
+ if (sbi->commit_wq)
+ destroy_workqueue(sbi->commit_wq);
+
cancel_delayed_work_sync(&REISERFS_SB(s)->old_work);
reiserfs_free_bitmap_cache(s);
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index a012c51caffd..a7690b46ce0a 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -167,7 +167,8 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
continue;
}
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ flen = udf_get_filename(dir->i_sb, nameptr, lfi, fname,
+ UDF_NAME_LEN);
if (!flen)
continue;
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index a932f7740b51..bf08a9fbb97e 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1496,6 +1496,24 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint);
}
+ /* Sanity checks for files in ICB so that we don't get confused later */
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+ /*
+ * For file in ICB data is stored in allocation descriptor
+ * so sizes should match
+ */
+ if (iinfo->i_lenAlloc != inode->i_size) {
+ make_bad_inode(inode);
+ return;
+ }
+ /* File in ICB has to fit in there... */
+ if (inode->i_size > inode->i_sb->s_blocksize -
+ udf_file_entry_alloc_offset(inode)) {
+ make_bad_inode(inode);
+ return;
+ }
+ }
+
switch (fe->icbTag.fileType) {
case ICBTAG_FILE_TYPE_DIRECTORY:
inode->i_op = &udf_dir_inode_operations;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 9737cba1357d..fd6bfa153f49 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -233,7 +233,8 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
if (!lfi)
continue;
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ flen = udf_get_filename(dir->i_sb, nameptr, lfi, fname,
+ UDF_NAME_LEN);
if (flen && udf_match(flen, fname, child->len, child->name))
goto out_ok;
}
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index d7c6dbe4194b..0422b7b8369f 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -30,49 +30,73 @@
#include <linux/buffer_head.h>
#include "udf_i.h"
-static void udf_pc_to_char(struct super_block *sb, unsigned char *from,
- int fromlen, unsigned char *to)
+static int udf_pc_to_char(struct super_block *sb, unsigned char *from,
+ int fromlen, unsigned char *to, int tolen)
{
struct pathComponent *pc;
int elen = 0;
+ int comp_len;
unsigned char *p = to;
+ /* Reserve one byte for terminating \0 */
+ tolen--;
while (elen < fromlen) {
pc = (struct pathComponent *)(from + elen);
+ elen += sizeof(struct pathComponent);
switch (pc->componentType) {
case 1:
/*
* Symlink points to some place which should be agreed
* upon between originator and receiver of the media. Ignore.
*/
- if (pc->lengthComponentIdent > 0)
+ if (pc->lengthComponentIdent > 0) {
+ elen += pc->lengthComponentIdent;
break;
+ }
/* Fall through */
case 2:
+ if (tolen == 0)
+ return -ENAMETOOLONG;
p = to;
*p++ = '/';
+ tolen--;
break;
case 3:
+ if (tolen < 3)
+ return -ENAMETOOLONG;
memcpy(p, "../", 3);
p += 3;
+ tolen -= 3;
break;
case 4:
+ if (tolen < 2)
+ return -ENAMETOOLONG;
memcpy(p, "./", 2);
p += 2;
+ tolen -= 2;
/* that would be . - just ignore */
break;
case 5:
- p += udf_get_filename(sb, pc->componentIdent, p,
- pc->lengthComponentIdent);
+ elen += pc->lengthComponentIdent;
+ if (elen > fromlen)
+ return -EIO;
+ comp_len = udf_get_filename(sb, pc->componentIdent,
+ pc->lengthComponentIdent,
+ p, tolen);
+ p += comp_len;
+ tolen -= comp_len;
+ if (tolen == 0)
+ return -ENAMETOOLONG;
*p++ = '/';
+ tolen--;
break;
}
- elen += sizeof(struct pathComponent) + pc->lengthComponentIdent;
}
if (p > to + 1)
p[-1] = '\0';
else
p[0] = '\0';
+ return 0;
}
static int udf_symlink_filler(struct file *file, struct page *page)
@@ -80,11 +104,17 @@ static int udf_symlink_filler(struct file *file, struct page *page)
struct inode *inode = page->mapping->host;
struct buffer_head *bh = NULL;
unsigned char *symlink;
- int err = -EIO;
+ int err;
unsigned char *p = kmap(page);
struct udf_inode_info *iinfo;
uint32_t pos;
+ /* We don't support symlinks longer than one block */
+ if (inode->i_size > inode->i_sb->s_blocksize) {
+ err = -ENAMETOOLONG;
+ goto out_unmap;
+ }
+
iinfo = UDF_I(inode);
pos = udf_block_map(inode, 0);
@@ -94,14 +124,18 @@ static int udf_symlink_filler(struct file *file, struct page *page)
} else {
bh = sb_bread(inode->i_sb, pos);
- if (!bh)
- goto out;
+ if (!bh) {
+ err = -EIO;
+ goto out_unlock_inode;
+ }
symlink = bh->b_data;
}
- udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p);
+ err = udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p, PAGE_SIZE);
brelse(bh);
+ if (err)
+ goto out_unlock_inode;
up_read(&iinfo->i_data_sem);
SetPageUptodate(page);
@@ -109,9 +143,10 @@ static int udf_symlink_filler(struct file *file, struct page *page)
unlock_page(page);
return 0;
-out:
+out_unlock_inode:
up_read(&iinfo->i_data_sem);
SetPageError(page);
+out_unmap:
kunmap(page);
unlock_page(page);
return err;
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index be7dabbbcb49..55d1d194d472 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -201,7 +201,8 @@ udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
}
/* unicode.c */
-extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
+extern int udf_get_filename(struct super_block *, uint8_t *, int, uint8_t *,
+ int);
extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
int);
extern int udf_build_ustr(struct ustr *, dstring *, int);
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index 44b815e57f94..d29c06fbf4ce 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -28,7 +28,8 @@
#include "udf_sb.h"
-static int udf_translate_to_linux(uint8_t *, uint8_t *, int, uint8_t *, int);
+static int udf_translate_to_linux(uint8_t *, int, uint8_t *, int, uint8_t *,
+ int);
static int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen)
{
@@ -333,8 +334,8 @@ try_again:
return u_len + 1;
}
-int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
- int flen)
+int udf_get_filename(struct super_block *sb, uint8_t *sname, int slen,
+ uint8_t *dname, int dlen)
{
struct ustr *filename, *unifilename;
int len = 0;
@@ -347,7 +348,7 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
if (!unifilename)
goto out1;
- if (udf_build_ustr_exact(unifilename, sname, flen))
+ if (udf_build_ustr_exact(unifilename, sname, slen))
goto out2;
if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
@@ -366,7 +367,8 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
} else
goto out2;
- len = udf_translate_to_linux(dname, filename->u_name, filename->u_len,
+ len = udf_translate_to_linux(dname, dlen,
+ filename->u_name, filename->u_len,
unifilename->u_name, unifilename->u_len);
out2:
kfree(unifilename);
@@ -403,10 +405,12 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
#define EXT_MARK '.'
#define CRC_MARK '#'
#define EXT_SIZE 5
+/* Number of chars we need to store generated CRC to make filename unique */
+#define CRC_LEN 5
-static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
- int udfLen, uint8_t *fidName,
- int fidNameLen)
+static int udf_translate_to_linux(uint8_t *newName, int newLen,
+ uint8_t *udfName, int udfLen,
+ uint8_t *fidName, int fidNameLen)
{
int index, newIndex = 0, needsCRC = 0;
int extIndex = 0, newExtIndex = 0, hasExt = 0;
@@ -440,7 +444,7 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
newExtIndex = newIndex;
}
}
- if (newIndex < 256)
+ if (newIndex < newLen)
newName[newIndex++] = curr;
else
needsCRC = 1;
@@ -468,13 +472,13 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
}
ext[localExtIndex++] = curr;
}
- maxFilenameLen = 250 - localExtIndex;
+ maxFilenameLen = newLen - CRC_LEN - localExtIndex;
if (newIndex > maxFilenameLen)
newIndex = maxFilenameLen;
else
newIndex = newExtIndex;
- } else if (newIndex > 250)
- newIndex = 250;
+ } else if (newIndex > newLen - CRC_LEN)
+ newIndex = newLen - CRC_LEN;
newName[newIndex++] = CRC_MARK;
valueCRC = crc_itu_t(0, fidName, fidNameLen);
newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 22cfddb75566..1e4676e7bf63 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -47,6 +47,7 @@ struct sk_buff;
struct audit_krule {
int vers_ops;
+ u32 pflags;
u32 flags;
u32 listnr;
u32 action;
@@ -64,6 +65,9 @@ struct audit_krule {
u64 prio;
};
+/* Flag to indicate legacy AUDIT_LOGINUID unset usage */
+#define AUDIT_LOGINUID_LEGACY 0x1
+
struct audit_field {
u32 type;
u32 val;
diff --git a/include/linux/cred.h b/include/linux/cred.h
index f61d6c8f5ef3..e88316355c66 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -68,6 +68,7 @@ extern void groups_free(struct group_info *);
extern int set_current_groups(struct group_info *);
extern void set_groups(struct cred *, struct group_info *);
extern int groups_search(const struct group_info *, kgid_t);
+extern bool may_setgroups(void);
/* access the groups "array" with this macro */
#define GROUP_AT(gi, i) \
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 3c7ec327ebd2..6cddc8708a95 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -124,15 +124,15 @@ struct dentry {
void *d_fsdata; /* fs-specific data */
struct list_head d_lru; /* LRU list */
+ struct list_head d_child; /* child of parent list */
+ struct list_head d_subdirs; /* our children */
/*
- * d_child and d_rcu can share memory
+ * d_alias and d_rcu can share memory
*/
union {
- struct list_head d_child; /* child of parent list */
+ struct hlist_node d_alias; /* inode alias list */
struct rcu_head d_rcu;
} d_u;
- struct list_head d_subdirs; /* our children */
- struct hlist_node d_alias; /* inode alias list */
};
/*
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index ecbc52f9ff77..a6a8c409bbc3 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -68,6 +68,7 @@ static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
* Number of interrupts per specific IRQ source, since bootup
*/
extern unsigned int kstat_irqs(unsigned int irq);
+extern unsigned int kstat_irqs_usr(unsigned int irq);
/*
* Number of interrupts per cpu, since bootup
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index 9974975d40db..4af3fdc85b01 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -53,7 +53,8 @@ struct persistent_ram_zone {
};
struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
- u32 sig, struct persistent_ram_ecc_info *ecc_info);
+ u32 sig, struct persistent_ram_ecc_info *ecc_info,
+ unsigned int memtype);
void persistent_ram_free(struct persistent_ram_zone *prz);
void persistent_ram_zap(struct persistent_ram_zone *prz);
@@ -76,6 +77,7 @@ ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
struct ramoops_platform_data {
unsigned long mem_size;
unsigned long mem_address;
+ unsigned int mem_type;
unsigned long record_size;
unsigned long console_size;
unsigned long ftrace_size;
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 4836ba3c1cd8..e92abf9e796f 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -17,6 +17,10 @@ struct uid_gid_map { /* 64 bytes -- 1 cache line */
} extent[UID_GID_MAP_MAX_EXTENTS];
};
+#define USERNS_SETGROUPS_ALLOWED 1UL
+
+#define USERNS_INIT_FLAGS USERNS_SETGROUPS_ALLOWED
+
struct user_namespace {
struct uid_gid_map uid_map;
struct uid_gid_map gid_map;
@@ -27,6 +31,7 @@ struct user_namespace {
kuid_t owner;
kgid_t group;
unsigned int proc_inum;
+ unsigned long flags;
/* Register of per-UID persistent keyrings for this namespace */
#ifdef CONFIG_PERSISTENT_KEYRINGS
@@ -63,6 +68,9 @@ extern struct seq_operations proc_projid_seq_operations;
extern ssize_t proc_uid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_gid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_projid_map_write(struct file *, const char __user *, size_t, loff_t *);
+extern ssize_t proc_setgroups_write(struct file *, const char __user *, size_t, loff_t *);
+extern int proc_setgroups_show(struct seq_file *m, void *v);
+extern bool userns_may_setgroups(const struct user_namespace *ns);
#else
static inline struct user_namespace *get_user_ns(struct user_namespace *ns)
@@ -87,6 +95,10 @@ static inline void put_user_ns(struct user_namespace *ns)
{
}
+static inline bool userns_may_setgroups(const struct user_namespace *ns)
+{
+ return true;
+}
#endif
#endif /* _LINUX_USER_H */
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 0a68d5ae584e..a7d67bc14906 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -100,7 +100,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p)
/*
* For all intents and purposes a preempted task is a running task.
*/
- if (task_preempt_count(p) & PREEMPT_ACTIVE)
+ if (preempt_count() & PREEMPT_ACTIVE)
state = TASK_RUNNING | TASK_STATE_MAX;
#endif
diff --git a/include/uapi/linux/hyperv.h b/include/uapi/linux/hyperv.h
index 0a8e6badb29b..bb1cb73c927a 100644
--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -134,6 +134,7 @@ struct hv_start_fcopy {
struct hv_do_fcopy {
struct hv_fcopy_hdr hdr;
+ __u32 pad;
__u64 offset;
__u32 size;
__u8 data[DATA_FRAGMENT];
diff --git a/kernel/audit.c b/kernel/audit.c
index 6726aa6f82be..a0918e23d647 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -429,7 +429,7 @@ static void kauditd_send_skb(struct sk_buff *skb)
* This function doesn't consume an skb as might be expected since it has to
* copy it anyways.
*/
-static void kauditd_send_multicast_skb(struct sk_buff *skb)
+static void kauditd_send_multicast_skb(struct sk_buff *skb, gfp_t gfp_mask)
{
struct sk_buff *copy;
struct audit_net *aunet = net_generic(&init_net, audit_net_id);
@@ -448,11 +448,11 @@ static void kauditd_send_multicast_skb(struct sk_buff *skb)
* no reason for new multicast clients to continue with this
* non-compliance.
*/
- copy = skb_copy(skb, GFP_KERNEL);
+ copy = skb_copy(skb, gfp_mask);
if (!copy)
return;
- nlmsg_multicast(sock, copy, 0, AUDIT_NLGRP_READLOG, GFP_KERNEL);
+ nlmsg_multicast(sock, copy, 0, AUDIT_NLGRP_READLOG, gfp_mask);
}
/*
@@ -1959,7 +1959,7 @@ void audit_log_end(struct audit_buffer *ab)
} else {
struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
- kauditd_send_multicast_skb(ab->skb);
+ kauditd_send_multicast_skb(ab->skb, ab->gfp_mask);
/*
* The original kaudit unicast socket sends up messages with
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 8e9bc9c3dbb7..58200abb8d63 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -431,19 +431,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
if ((f->type == AUDIT_LOGINUID) && (f->val == AUDIT_UID_UNSET)) {
f->type = AUDIT_LOGINUID_SET;
f->val = 0;
- }
-
- if ((f->type == AUDIT_PID) || (f->type == AUDIT_PPID)) {
- struct pid *pid;
- rcu_read_lock();
- pid = find_vpid(f->val);
- if (!pid) {
- rcu_read_unlock();
- err = -ESRCH;
- goto exit_free;
- }
- f->val = pid_nr(pid);
- rcu_read_unlock();
+ entry->rule.pflags |= AUDIT_LOGINUID_LEGACY;
}
err = audit_field_valid(entry, f);
@@ -619,6 +607,13 @@ static struct audit_rule_data *audit_krule_to_data(struct audit_krule *krule)
data->buflen += data->values[i] =
audit_pack_string(&bufp, krule->filterkey);
break;
+ case AUDIT_LOGINUID_SET:
+ if (krule->pflags & AUDIT_LOGINUID_LEGACY && !f->val) {
+ data->fields[i] = AUDIT_LOGINUID;
+ data->values[i] = AUDIT_UID_UNSET;
+ break;
+ }
+ /* fallthrough if set */
default:
data->values[i] = f->val;
}
@@ -635,6 +630,7 @@ static int audit_compare_rule(struct audit_krule *a, struct audit_krule *b)
int i;
if (a->flags != b->flags ||
+ a->pflags != b->pflags ||
a->listnr != b->listnr ||
a->action != b->action ||
a->field_count != b->field_count)
@@ -753,6 +749,7 @@ struct audit_entry *audit_dupe_rule(struct audit_krule *old)
new = &entry->rule;
new->vers_ops = old->vers_ops;
new->flags = old->flags;
+ new->pflags = old->pflags;
new->listnr = old->listnr;
new->action = old->action;
for (i = 0; i < AUDIT_BITMASK_SIZE; i++)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6bc75223aaa7..cfaeffaefc75 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7329,11 +7329,11 @@ SYSCALL_DEFINE5(perf_event_open,
if (move_group) {
synchronize_rcu();
- perf_install_in_context(ctx, group_leader, event->cpu);
+ perf_install_in_context(ctx, group_leader, group_leader->cpu);
get_ctx(ctx);
list_for_each_entry(sibling, &group_leader->sibling_list,
group_entry) {
- perf_install_in_context(ctx, sibling, event->cpu);
+ perf_install_in_context(ctx, sibling, sibling->cpu);
get_ctx(ctx);
}
}
diff --git a/kernel/groups.c b/kernel/groups.c
index 451698f86cfa..664411f171b5 100644
--- a/kernel/groups.c
+++ b/kernel/groups.c
@@ -6,6 +6,7 @@
#include <linux/slab.h>
#include <linux/security.h>
#include <linux/syscalls.h>
+#include <linux/user_namespace.h>
#include <asm/uaccess.h>
/* init to 2 - one for init_task, one to ensure it is never freed */
@@ -213,6 +214,14 @@ out:
return i;
}
+bool may_setgroups(void)
+{
+ struct user_namespace *user_ns = current_user_ns();
+
+ return ns_capable(user_ns, CAP_SETGID) &&
+ userns_may_setgroups(user_ns);
+}
+
/*
* SMP: Our groups are copy-on-write. We can set them safely
* without another task interfering.
@@ -223,7 +232,7 @@ SYSCALL_DEFINE2(setgroups, int, gidsetsize, gid_t __user *, grouplist)
struct group_info *group_info;
int retval;
- if (!ns_capable(current_user_ns(), CAP_SETGID))
+ if (!may_setgroups())
return -EPERM;
if ((unsigned)gidsetsize > NGROUPS_MAX)
return -EINVAL;
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 099ea2e0eb88..08122140576f 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -78,8 +78,12 @@ extern void unmask_threaded_irq(struct irq_desc *desc);
#ifdef CONFIG_SPARSE_IRQ
static inline void irq_mark_irq(unsigned int irq) { }
+extern void irq_lock_sparse(void);
+extern void irq_unlock_sparse(void);
#else
extern void irq_mark_irq(unsigned int irq);
+static inline void irq_lock_sparse(void) { }
+static inline void irq_unlock_sparse(void) { }
#endif
extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 1487a123db5c..3922869d927a 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -131,6 +131,16 @@ static void free_masks(struct irq_desc *desc)
static inline void free_masks(struct irq_desc *desc) { }
#endif
+void irq_lock_sparse(void)
+{
+ mutex_lock(&sparse_irq_lock);
+}
+
+void irq_unlock_sparse(void)
+{
+ mutex_unlock(&sparse_irq_lock);
+}
+
static struct irq_desc *alloc_desc(int irq, int node, struct module *owner)
{
struct irq_desc *desc;
@@ -167,6 +177,12 @@ static void free_desc(unsigned int irq)
unregister_irq_proc(irq, desc);
+ /*
+ * sparse_irq_lock protects also show_interrupts() and
+ * kstat_irq_usr(). Once we deleted the descriptor from the
+ * sparse tree we can free it. Access in proc will fail to
+ * lookup the descriptor.
+ */
mutex_lock(&sparse_irq_lock);
delete_irq_desc(irq);
mutex_unlock(&sparse_irq_lock);
@@ -532,6 +548,15 @@ void kstat_incr_irq_this_cpu(unsigned int irq)
kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
}
+/**
+ * kstat_irqs_cpu - Get the statistics for an interrupt on a cpu
+ * @irq: The interrupt number
+ * @cpu: The cpu number
+ *
+ * Returns the sum of interrupt counts on @cpu since boot for
+ * @irq. The caller must ensure that the interrupt is not removed
+ * concurrently.
+ */
unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
struct irq_desc *desc = irq_to_desc(irq);
@@ -540,6 +565,14 @@ unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
*per_cpu_ptr(desc->kstat_irqs, cpu) : 0;
}
+/**
+ * kstat_irqs - Get the statistics for an interrupt
+ * @irq: The interrupt number
+ *
+ * Returns the sum of interrupt counts on all cpus since boot for
+ * @irq. The caller must ensure that the interrupt is not removed
+ * concurrently.
+ */
unsigned int kstat_irqs(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
@@ -552,3 +585,22 @@ unsigned int kstat_irqs(unsigned int irq)
sum += *per_cpu_ptr(desc->kstat_irqs, cpu);
return sum;
}
+
+/**
+ * kstat_irqs_usr - Get the statistics for an interrupt
+ * @irq: The interrupt number
+ *
+ * Returns the sum of interrupt counts on all cpus since boot for
+ * @irq. Contrary to kstat_irqs() this can be called from any
+ * preemptible context. It's protected against concurrent removal of
+ * an interrupt descriptor when sparse irqs are enabled.
+ */
+unsigned int kstat_irqs_usr(unsigned int irq)
+{
+ int sum;
+
+ irq_lock_sparse();
+ sum = kstat_irqs(irq);
+ irq_unlock_sparse();
+ return sum;
+}
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index ac1ba2f11032..9dc9bfd8a678 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -15,6 +15,23 @@
#include "internals.h"
+/*
+ * Access rules:
+ *
+ * procfs protects read/write of /proc/irq/N/ files against a
+ * concurrent free of the interrupt descriptor. remove_proc_entry()
+ * immediately prevents new read/writes to happen and waits for
+ * already running read/write functions to complete.
+ *
+ * We remove the proc entries first and then delete the interrupt
+ * descriptor from the radix tree and free it. So it is guaranteed
+ * that irq_to_desc(N) is valid as long as the read/writes are
+ * permitted by procfs.
+ *
+ * The read from /proc/interrupts is a different problem because there
+ * is no protection. So the lookup and the access to irqdesc
+ * information must be protected by sparse_irq_lock.
+ */
static struct proc_dir_entry *root_irq_dir;
#ifdef CONFIG_SMP
@@ -437,9 +454,10 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
}
+ irq_lock_sparse();
desc = irq_to_desc(i);
if (!desc)
- return 0;
+ goto outsparse;
raw_spin_lock_irqsave(&desc->lock, flags);
for_each_online_cpu(j)
@@ -479,6 +497,8 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
out:
raw_spin_unlock_irqrestore(&desc->lock, flags);
+outsparse:
+ irq_unlock_sparse();
return 0;
}
#endif
diff --git a/kernel/pid.c b/kernel/pid.c
index 9b9a26698144..82430c858d69 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -341,6 +341,8 @@ out:
out_unlock:
spin_unlock_irq(&pidmap_lock);
+ put_pid_ns(ns);
+
out_free:
while (++i <= ns->level)
free_pidmap(pid->numbers + i);
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 6558b7ac112d..8c08a6f9cca0 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -807,7 +807,6 @@ void tick_nohz_idle_enter(void)
local_irq_enable();
}
-EXPORT_SYMBOL_GPL(tick_nohz_idle_enter);
/**
* tick_nohz_irq_exit - update next tick event from interrupt exit
@@ -934,7 +933,6 @@ void tick_nohz_idle_exit(void)
local_irq_enable();
}
-EXPORT_SYMBOL_GPL(tick_nohz_idle_exit);
static int tick_nohz_reprogram(struct tick_sched *ts, ktime_t now)
{
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index bbf1381c2201..01603e48742e 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6384,7 +6384,7 @@ static int instance_mkdir (struct inode *inode, struct dentry *dentry, umode_t m
int ret;
/* Paranoid: Make sure the parent is the "instances" directory */
- parent = hlist_entry(inode->i_dentry.first, struct dentry, d_alias);
+ parent = hlist_entry(inode->i_dentry.first, struct dentry, d_u.d_alias);
if (WARN_ON_ONCE(parent != trace_instance_dir))
return -ENOENT;
@@ -6411,7 +6411,7 @@ static int instance_rmdir(struct inode *inode, struct dentry *dentry)
int ret;
/* Paranoid: Make sure the parent is the "instances" directory */
- parent = hlist_entry(inode->i_dentry.first, struct dentry, d_alias);
+ parent = hlist_entry(inode->i_dentry.first, struct dentry, d_u.d_alias);
if (WARN_ON_ONCE(parent != trace_instance_dir))
return -ENOENT;
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 2de53628689f..41c56b7e882c 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -459,7 +459,7 @@ static void remove_event_file_dir(struct ftrace_event_file *file)
if (dir) {
spin_lock(&dir->d_lock); /* probably unneeded */
- list_for_each_entry(child, &dir->d_subdirs, d_u.d_child) {
+ list_for_each_entry(child, &dir->d_subdirs, d_child) {
if (child->d_inode) /* probably unneeded */
child->d_inode->i_private = NULL;
}
diff --git a/kernel/uid16.c b/kernel/uid16.c
index 602e5bbbceff..d58cc4d8f0d1 100644
--- a/kernel/uid16.c
+++ b/kernel/uid16.c
@@ -176,7 +176,7 @@ SYSCALL_DEFINE2(setgroups16, int, gidsetsize, old_gid_t __user *, grouplist)
struct group_info *group_info;
int retval;
- if (!ns_capable(current_user_ns(), CAP_SETGID))
+ if (!may_setgroups())
return -EPERM;
if ((unsigned)gidsetsize > NGROUPS_MAX)
return -EINVAL;
diff --git a/kernel/user.c b/kernel/user.c
index 4efa39350e44..2d09940c9632 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -51,6 +51,7 @@ struct user_namespace init_user_ns = {
.owner = GLOBAL_ROOT_UID,
.group = GLOBAL_ROOT_GID,
.proc_inum = PROC_USER_INIT_INO,
+ .flags = USERNS_INIT_FLAGS,
#ifdef CONFIG_PERSISTENT_KEYRINGS
.persistent_keyring_register_sem =
__RWSEM_INITIALIZER(init_user_ns.persistent_keyring_register_sem),
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index fcc02560fd6b..a4017e14a5b0 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -24,6 +24,7 @@
#include <linux/fs_struct.h>
static struct kmem_cache *user_ns_cachep __read_mostly;
+static DEFINE_MUTEX(userns_state_mutex);
static bool new_idmap_permitted(const struct file *file,
struct user_namespace *ns, int cap_setid,
@@ -99,6 +100,11 @@ int create_user_ns(struct cred *new)
ns->owner = owner;
ns->group = group;
+ /* Inherit USERNS_SETGROUPS_ALLOWED from our parent */
+ mutex_lock(&userns_state_mutex);
+ ns->flags = parent_ns->flags;
+ mutex_unlock(&userns_state_mutex);
+
set_cred_user_ns(new, ns);
#ifdef CONFIG_PERSISTENT_KEYRINGS
@@ -583,9 +589,6 @@ static bool mappings_overlap(struct uid_gid_map *new_map,
return false;
}
-
-static DEFINE_MUTEX(id_map_mutex);
-
static ssize_t map_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos,
int cap_setid,
@@ -602,7 +605,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
ssize_t ret = -EINVAL;
/*
- * The id_map_mutex serializes all writes to any given map.
+ * The userns_state_mutex serializes all writes to any given map.
*
* Any map is only ever written once.
*
@@ -620,7 +623,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
* order and smp_rmb() is guaranteed that we don't have crazy
* architectures returning stale data.
*/
- mutex_lock(&id_map_mutex);
+ mutex_lock(&userns_state_mutex);
ret = -EPERM;
/* Only allow one successful write to the map */
@@ -750,7 +753,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
*ppos = count;
ret = count;
out:
- mutex_unlock(&id_map_mutex);
+ mutex_unlock(&userns_state_mutex);
if (page)
free_page(page);
return ret;
@@ -812,16 +815,21 @@ static bool new_idmap_permitted(const struct file *file,
struct user_namespace *ns, int cap_setid,
struct uid_gid_map *new_map)
{
- /* Allow mapping to your own filesystem ids */
- if ((new_map->nr_extents == 1) && (new_map->extent[0].count == 1)) {
+ const struct cred *cred = file->f_cred;
+ /* Don't allow mappings that would allow anything that wouldn't
+ * be allowed without the establishment of unprivileged mappings.
+ */
+ if ((new_map->nr_extents == 1) && (new_map->extent[0].count == 1) &&
+ uid_eq(ns->owner, cred->euid)) {
u32 id = new_map->extent[0].lower_first;
if (cap_setid == CAP_SETUID) {
kuid_t uid = make_kuid(ns->parent, id);
- if (uid_eq(uid, file->f_cred->fsuid))
+ if (uid_eq(uid, cred->euid))
return true;
} else if (cap_setid == CAP_SETGID) {
kgid_t gid = make_kgid(ns->parent, id);
- if (gid_eq(gid, file->f_cred->fsgid))
+ if (!(ns->flags & USERNS_SETGROUPS_ALLOWED) &&
+ gid_eq(gid, cred->egid))
return true;
}
}
@@ -841,6 +849,100 @@ static bool new_idmap_permitted(const struct file *file,
return false;
}
+int proc_setgroups_show(struct seq_file *seq, void *v)
+{
+ struct user_namespace *ns = seq->private;
+ unsigned long userns_flags = ACCESS_ONCE(ns->flags);
+
+ seq_printf(seq, "%s\n",
+ (userns_flags & USERNS_SETGROUPS_ALLOWED) ?
+ "allow" : "deny");
+ return 0;
+}
+
+ssize_t proc_setgroups_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *seq = file->private_data;
+ struct user_namespace *ns = seq->private;
+ char kbuf[8], *pos;
+ bool setgroups_allowed;
+ ssize_t ret;
+
+ /* Only allow a very narrow range of strings to be written */
+ ret = -EINVAL;
+ if ((*ppos != 0) || (count >= sizeof(kbuf)))
+ goto out;
+
+ /* What was written? */
+ ret = -EFAULT;
+ if (copy_from_user(kbuf, buf, count))
+ goto out;
+ kbuf[count] = '\0';
+ pos = kbuf;
+
+ /* What is being requested? */
+ ret = -EINVAL;
+ if (strncmp(pos, "allow", 5) == 0) {
+ pos += 5;
+ setgroups_allowed = true;
+ }
+ else if (strncmp(pos, "deny", 4) == 0) {
+ pos += 4;
+ setgroups_allowed = false;
+ }
+ else
+ goto out;
+
+ /* Verify there is not trailing junk on the line */
+ pos = skip_spaces(pos);
+ if (*pos != '\0')
+ goto out;
+
+ ret = -EPERM;
+ mutex_lock(&userns_state_mutex);
+ if (setgroups_allowed) {
+ /* Enabling setgroups after setgroups has been disabled
+ * is not allowed.
+ */
+ if (!(ns->flags & USERNS_SETGROUPS_ALLOWED))
+ goto out_unlock;
+ } else {
+ /* Permanently disabling setgroups after setgroups has
+ * been enabled by writing the gid_map is not allowed.
+ */
+ if (ns->gid_map.nr_extents != 0)
+ goto out_unlock;
+ ns->flags &= ~USERNS_SETGROUPS_ALLOWED;
+ }
+ mutex_unlock(&userns_state_mutex);
+
+ /* Report a successful write */
+ *ppos = count;
+ ret = count;
+out:
+ return ret;
+out_unlock:
+ mutex_unlock(&userns_state_mutex);
+ goto out;
+}
+
+bool userns_may_setgroups(const struct user_namespace *ns)
+{
+ bool allowed;
+
+ mutex_lock(&userns_state_mutex);
+ /* It is not safe to use setgroups until a gid mapping in
+ * the user namespace has been established.
+ */
+ allowed = ns->gid_map.nr_extents != 0;
+ /* Is setgroups allowed? */
+ allowed = allowed && (ns->flags & USERNS_SETGROUPS_ALLOWED);
+ mutex_unlock(&userns_state_mutex);
+
+ return allowed;
+}
+
static void *userns_get(struct task_struct *task)
{
struct user_namespace *user_ns;
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index 022d18ab27a6..57dd88db6bb7 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -251,7 +251,7 @@ batadv_frag_merge_packets(struct hlist_head *chain, struct sk_buff *skb)
kfree(entry);
/* Make room for the rest of the fragments. */
- if (pskb_expand_head(skb_out, 0, size - skb->len, GFP_ATOMIC) < 0) {
+ if (pskb_expand_head(skb_out, 0, size - skb_out->len, GFP_ATOMIC) < 0) {
kfree_skb(skb_out);
skb_out = NULL;
goto free;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index a7a27bc2c0b1..1cb6405e4429 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -484,7 +484,7 @@ int hci_conn_del(struct hci_conn *conn)
/* Unacked frames */
hdev->acl_cnt += conn->sent;
} else if (conn->type == LE_LINK) {
- cancel_delayed_work_sync(&conn->le_conn_timeout);
+ cancel_delayed_work(&conn->le_conn_timeout);
if (hdev->le_pkts)
hdev->le_cnt += conn->sent;
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 16d97f044a20..947daa9d3346 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -653,7 +653,7 @@ void ieee80211_free_sta_keys(struct ieee80211_local *local,
int i;
mutex_lock(&local->key_mtx);
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ for (i = 0; i < ARRAY_SIZE(sta->gtk); i++) {
key = key_mtx_dereference(local, sta->gtk[i]);
if (!key)
continue;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e3f758a14387..dfa42b016992 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1646,14 +1646,14 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
sc = le16_to_cpu(hdr->seq_ctrl);
frag = sc & IEEE80211_SCTL_FRAG;
- if (likely(!ieee80211_has_morefrags(fc) && frag == 0))
- goto out;
-
if (is_multicast_ether_addr(hdr->addr1)) {
rx->local->dot11MulticastReceivedFrameCount++;
- goto out;
+ goto out_no_led;
}
+ if (likely(!ieee80211_has_morefrags(fc) && frag == 0))
+ goto out;
+
I802_DEBUG_INC(rx->local->rx_handlers_fragments);
if (skb_linearize(rx->skb))
@@ -1744,9 +1744,10 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
status->rx_flags |= IEEE80211_RX_FRAGMENTED;
out:
+ ieee80211_led_rx(rx->local);
+ out_no_led:
if (rx->sta)
rx->sta->rx_packets++;
- ieee80211_led_rx(rx->local);
return RX_CONTINUE;
}
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 992b34070bcb..0add995d5bae 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -601,7 +601,7 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
{
struct ieee80211_sta_ht_cap *ht_cap;
struct ieee80211_sta_vht_cap *vht_cap;
- u32 width, control_freq;
+ u32 width, control_freq, cap;
if (WARN_ON(!cfg80211_chandef_valid(chandef)))
return false;
@@ -641,7 +641,8 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
return false;
break;
case NL80211_CHAN_WIDTH_80P80:
- if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ))
+ cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
+ if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
return false;
case NL80211_CHAN_WIDTH_80:
if (!vht_cap->vht_supported)
@@ -652,7 +653,9 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
case NL80211_CHAN_WIDTH_160:
if (!vht_cap->vht_supported)
return false;
- if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ))
+ cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
+ if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ &&
+ cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
return false;
prohibited_flags |= IEEE80211_CHAN_NO_160MHZ;
width = 160;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d702af40ddea..e3251a634446 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5754,7 +5754,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
}
/* there was no other matchset, so the RSSI one is alone */
- if (i == 0)
+ if (i == 0 && n_match_sets)
request->match_sets[0].rssi_thold = default_match_rssi;
request->min_rssi_thold = INT_MAX;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 1afdf45db38f..20ccc79d53a2 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1720,7 +1720,7 @@ static enum reg_request_treatment
reg_process_hint_driver(struct wiphy *wiphy,
struct regulatory_request *driver_request)
{
- const struct ieee80211_regdomain *regd;
+ const struct ieee80211_regdomain *regd, *tmp;
enum reg_request_treatment treatment;
treatment = __reg_process_hint_driver(driver_request);
@@ -1740,7 +1740,10 @@ reg_process_hint_driver(struct wiphy *wiphy,
reg_free_request(driver_request);
return REG_REQ_IGNORE;
}
+
+ tmp = get_wiphy_regdom(wiphy);
rcu_assign_pointer(wiphy->regd, regd);
+ rcu_free_regdom(tmp);
}
@@ -1799,11 +1802,8 @@ __reg_process_hint_country_ie(struct wiphy *wiphy,
return REG_REQ_IGNORE;
return REG_REQ_ALREADY_SET;
}
- /*
- * Two consecutive Country IE hints on the same wiphy.
- * This should be picked up early by the driver/stack
- */
- if (WARN_ON(regdom_changes(country_ie_request->alpha2)))
+
+ if (regdom_changes(country_ie_request->alpha2))
return REG_REQ_OK;
return REG_REQ_ALREADY_SET;
}
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 5fe443d120af..556c43df6636 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -1018,10 +1018,13 @@ static int __init init_encrypted(void)
ret = encrypted_shash_alloc();
if (ret < 0)
return ret;
+ ret = aes_get_sizes();
+ if (ret < 0)
+ goto out;
ret = register_key_type(&key_type_encrypted);
if (ret < 0)
goto out;
- return aes_get_sizes();
+ return 0;
out:
encrypted_shash_release();
return ret;
diff --git a/security/keys/gc.c b/security/keys/gc.c
index d3222b6d7d59..009d9370c8fd 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -157,12 +157,12 @@ static noinline void key_gc_unused_keys(struct list_head *keys)
if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags))
atomic_dec(&key->user->nikeys);
- key_user_put(key->user);
-
/* now throw away the key memory */
if (key->type->destroy)
key->type->destroy(key);
+ key_user_put(key->user);
+
kfree(key->description);
#ifdef KEY_DEBUGGING
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index c71737f6d1cc..33db1ad4fd10 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1200,7 +1200,7 @@ static void sel_remove_entries(struct dentry *de)
spin_lock(&de->d_lock);
node = de->d_subdirs.next;
while (node != &de->d_subdirs) {
- struct dentry *d = list_entry(node, struct dentry, d_u.d_child);
+ struct dentry *d = list_entry(node, struct dentry, d_child);
spin_lock_nested(&d->d_lock, DENTRY_D_LOCK_NESTED);
list_del_init(node);
@@ -1674,12 +1674,12 @@ static void sel_remove_classes(void)
list_for_each(class_node, &class_dir->d_subdirs) {
struct dentry *class_subdir = list_entry(class_node,
- struct dentry, d_u.d_child);
+ struct dentry, d_child);
struct list_head *class_subdir_node;
list_for_each(class_subdir_node, &class_subdir->d_subdirs) {
struct dentry *d = list_entry(class_subdir_node,
- struct dentry, d_u.d_child);
+ struct dentry, d_child);
if (d->d_inode)
if (d->d_inode->i_mode & S_IFDIR)
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 06275f8807a8..4714ff92f15e 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -332,6 +332,7 @@ static const struct hda_fixup ad1986a_fixups[] = {
static const struct snd_pci_quirk ad1986a_fixup_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x30af, "HP B2800", AD1986A_FIXUP_LAPTOP_IMIC),
+ SND_PCI_QUIRK(0x1043, 0x1443, "ASUS Z99He", AD1986A_FIXUP_EAPD),
SND_PCI_QUIRK(0x1043, 0x1447, "ASUS A8JN", AD1986A_FIXUP_EAPD),
SND_PCI_QUIRK_MASK(0x1043, 0xff00, 0x8100, "ASUS P5", AD1986A_FIXUP_3STACK),
SND_PCI_QUIRK_MASK(0x1043, 0xff00, 0x8200, "ASUS M2", AD1986A_FIXUP_3STACK),
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e517902cbd66..2cc27a08905b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4787,6 +4787,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1028, 0x063f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x064a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x064b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
+ SND_PCI_QUIRK(0x1028, 0x06c7, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x0668, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x0669, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x0684, "Dell", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
@@ -4906,6 +4907,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad T440", ALC292_FIXUP_TPT440_DOCK),
SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad X240", ALC292_FIXUP_TPT440_DOCK),
SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+ SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index d97f1ce7ff7d..39124f43faa1 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -1403,8 +1403,8 @@ static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
{"STENL Mux", "Sidetone Left", "DMICL"},
{"STENR Mux", "Sidetone Right", "ADCR"},
{"STENR Mux", "Sidetone Right", "DMICR"},
- {"DACL", "NULL", "STENL Mux"},
- {"DACR", "NULL", "STENL Mux"},
+ {"DACL", NULL, "STENL Mux"},
+ {"DACR", NULL, "STENL Mux"},
{"AIFINL", NULL, "SHDN"},
{"AIFINR", NULL, "SHDN"},
diff --git a/sound/soc/codecs/pcm512x-i2c.c b/sound/soc/codecs/pcm512x-i2c.c
index 4d62230bd378..d0547fa275fc 100644
--- a/sound/soc/codecs/pcm512x-i2c.c
+++ b/sound/soc/codecs/pcm512x-i2c.c
@@ -24,8 +24,13 @@ static int pcm512x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct regmap *regmap;
+ struct regmap_config config = pcm512x_regmap;
- regmap = devm_regmap_init_i2c(i2c, &pcm512x_regmap);
+ /* msb needs to be set to enable auto-increment of addresses */
+ config.read_flag_mask = 0x80;
+ config.write_flag_mask = 0x80;
+
+ regmap = devm_regmap_init_i2c(i2c, &config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
diff --git a/sound/soc/codecs/sigmadsp.c b/sound/soc/codecs/sigmadsp.c
index f2de7e049bc6..81a38dd9af1f 100644
--- a/sound/soc/codecs/sigmadsp.c
+++ b/sound/soc/codecs/sigmadsp.c
@@ -159,6 +159,13 @@ int _process_sigma_firmware(struct device *dev,
goto done;
}
+ if (ssfw_head->version != 1) {
+ dev_err(dev,
+ "Failed to load firmware: Invalid version %d. Supported firmware versions: 1\n",
+ ssfw_head->version);
+ goto done;
+ }
+
crc = crc32(0, fw->data + sizeof(*ssfw_head),
fw->size - sizeof(*ssfw_head));
pr_debug("%s: crc=%x\n", __func__, crc);
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 9da74d2e8eee..76747806dc67 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -364,6 +364,8 @@ static void snd_usbmidi_error_timer(unsigned long data)
if (in && in->error_resubmit) {
in->error_resubmit = 0;
for (j = 0; j < INPUT_URBS; ++j) {
+ if (atomic_read(&in->urbs[j]->use_count))
+ continue;
in->urbs[j]->dev = umidi->dev;
snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC);
}
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index d1d72ff50347..621bc9ebb55e 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -328,8 +328,11 @@ static struct usbmix_name_map gamecom780_map[] = {
{}
};
-static const struct usbmix_name_map kef_x300a_map[] = {
- { 10, NULL }, /* firmware locks up (?) when we try to access this FU */
+/* some (all?) SCMS USB3318 devices are affected by a firmware lock up
+ * when anything attempts to access FU 10 (control)
+ */
+static const struct usbmix_name_map scms_usb3318_map[] = {
+ { 10, NULL },
{ 0 }
};
@@ -425,8 +428,14 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
.map = ebox44_map,
},
{
+ /* KEF X300A */
.id = USB_ID(0x27ac, 0x1000),
- .map = kef_x300a_map,
+ .map = scms_usb3318_map,
+ },
+ {
+ /* Arcam rPAC */
+ .id = USB_ID(0x25c4, 0x0003),
+ .map = scms_usb3318_map,
},
{ 0 } /* terminator */
};
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index c657752a420c..83bddbdb90e9 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -2804,133 +2804,45 @@ YAMAHA_DEVICE(0x7010, "UB99"),
}
},
-/* Hauppauge HVR-950Q and HVR-850 */
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x7200),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x7210),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x7217),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x721b),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x721e),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x721f),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x7240),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-850",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x2040, 0x7280),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
-{
- USB_DEVICE_VENDOR_SPEC(0x0fd9, 0x0008),
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .bInterfaceClass = USB_CLASS_AUDIO,
- .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
- .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
- .vendor_name = "Hauppauge",
- .product_name = "HVR-950Q",
- .ifnum = QUIRK_ANY_INTERFACE,
- .type = QUIRK_AUDIO_ALIGN_TRANSFER,
- }
-},
+/*
+ * Auvitek au0828 devices with audio interface.
+ * This should be kept in sync with drivers/media/usb/au0828/au0828-cards.c
+ * Please notice that some drivers are DVB only, and don't need to be
+ * here. That's the case, for example, of DVICO_FUSIONHDTV7.
+ */
+
+#define AU0828_DEVICE(vid, pid, vname, pname) { \
+ USB_DEVICE_VENDOR_SPEC(vid, pid), \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_INT_CLASS | \
+ USB_DEVICE_ID_MATCH_INT_SUBCLASS, \
+ .bInterfaceClass = USB_CLASS_AUDIO, \
+ .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL, \
+ .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { \
+ .vendor_name = vname, \
+ .product_name = pname, \
+ .ifnum = QUIRK_ANY_INTERFACE, \
+ .type = QUIRK_AUDIO_ALIGN_TRANSFER, \
+ } \
+}
+
+AU0828_DEVICE(0x2040, 0x7200, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x7240, "Hauppauge", "HVR-850"),
+AU0828_DEVICE(0x2040, 0x7210, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x7217, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x721b, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x721e, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x721f, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x7280, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x0fd9, 0x0008, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x7201, "Hauppauge", "HVR-950Q-MXL"),
+AU0828_DEVICE(0x2040, 0x7211, "Hauppauge", "HVR-950Q-MXL"),
+AU0828_DEVICE(0x2040, 0x7281, "Hauppauge", "HVR-950Q-MXL"),
+AU0828_DEVICE(0x05e1, 0x0480, "Hauppauge", "Woodbury"),
+AU0828_DEVICE(0x2040, 0x8200, "Hauppauge", "Woodbury"),
+AU0828_DEVICE(0x2040, 0x7260, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x7213, "Hauppauge", "HVR-950Q"),
+AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
/* Digidesign Mbox */
{
diff --git a/tools/testing/selftests/mount/unprivileged-remount-test.c b/tools/testing/selftests/mount/unprivileged-remount-test.c
index 1b3ff2fda4d0..517785052f1c 100644
--- a/tools/testing/selftests/mount/unprivileged-remount-test.c
+++ b/tools/testing/selftests/mount/unprivileged-remount-test.c
@@ -6,6 +6,8 @@
#include <sys/types.h>
#include <sys/mount.h>
#include <sys/wait.h>
+#include <sys/vfs.h>
+#include <sys/statvfs.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
@@ -32,11 +34,14 @@
# define CLONE_NEWPID 0x20000000
#endif
+#ifndef MS_REC
+# define MS_REC 16384
+#endif
#ifndef MS_RELATIME
-#define MS_RELATIME (1 << 21)
+# define MS_RELATIME (1 << 21)
#endif
#ifndef MS_STRICTATIME
-#define MS_STRICTATIME (1 << 24)
+# define MS_STRICTATIME (1 << 24)
#endif
static void die(char *fmt, ...)
@@ -48,17 +53,14 @@ static void die(char *fmt, ...)
exit(EXIT_FAILURE);
}
-static void write_file(char *filename, char *fmt, ...)
+static void vmaybe_write_file(bool enoent_ok, char *filename, char *fmt, va_list ap)
{
char buf[4096];
int fd;
ssize_t written;
int buf_len;
- va_list ap;
- va_start(ap, fmt);
buf_len = vsnprintf(buf, sizeof(buf), fmt, ap);
- va_end(ap);
if (buf_len < 0) {
die("vsnprintf failed: %s\n",
strerror(errno));
@@ -69,6 +71,8 @@ static void write_file(char *filename, char *fmt, ...)
fd = open(filename, O_WRONLY);
if (fd < 0) {
+ if ((errno == ENOENT) && enoent_ok)
+ return;
die("open of %s failed: %s\n",
filename, strerror(errno));
}
@@ -87,6 +91,65 @@ static void write_file(char *filename, char *fmt, ...)
}
}
+static void maybe_write_file(char *filename, char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vmaybe_write_file(true, filename, fmt, ap);
+ va_end(ap);
+
+}
+
+static void write_file(char *filename, char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vmaybe_write_file(false, filename, fmt, ap);
+ va_end(ap);
+
+}
+
+static int read_mnt_flags(const char *path)
+{
+ int ret;
+ struct statvfs stat;
+ int mnt_flags;
+
+ ret = statvfs(path, &stat);
+ if (ret != 0) {
+ die("statvfs of %s failed: %s\n",
+ path, strerror(errno));
+ }
+ if (stat.f_flag & ~(ST_RDONLY | ST_NOSUID | ST_NODEV | \
+ ST_NOEXEC | ST_NOATIME | ST_NODIRATIME | ST_RELATIME | \
+ ST_SYNCHRONOUS | ST_MANDLOCK)) {
+ die("Unrecognized mount flags\n");
+ }
+ mnt_flags = 0;
+ if (stat.f_flag & ST_RDONLY)
+ mnt_flags |= MS_RDONLY;
+ if (stat.f_flag & ST_NOSUID)
+ mnt_flags |= MS_NOSUID;
+ if (stat.f_flag & ST_NODEV)
+ mnt_flags |= MS_NODEV;
+ if (stat.f_flag & ST_NOEXEC)
+ mnt_flags |= MS_NOEXEC;
+ if (stat.f_flag & ST_NOATIME)
+ mnt_flags |= MS_NOATIME;
+ if (stat.f_flag & ST_NODIRATIME)
+ mnt_flags |= MS_NODIRATIME;
+ if (stat.f_flag & ST_RELATIME)
+ mnt_flags |= MS_RELATIME;
+ if (stat.f_flag & ST_SYNCHRONOUS)
+ mnt_flags |= MS_SYNCHRONOUS;
+ if (stat.f_flag & ST_MANDLOCK)
+ mnt_flags |= ST_MANDLOCK;
+
+ return mnt_flags;
+}
+
static void create_and_enter_userns(void)
{
uid_t uid;
@@ -100,13 +163,10 @@ static void create_and_enter_userns(void)
strerror(errno));
}
+ maybe_write_file("/proc/self/setgroups", "deny");
write_file("/proc/self/uid_map", "0 %d 1", uid);
write_file("/proc/self/gid_map", "0 %d 1", gid);
- if (setgroups(0, NULL) != 0) {
- die("setgroups failed: %s\n",
- strerror(errno));
- }
if (setgid(0) != 0) {
die ("setgid(0) failed %s\n",
strerror(errno));
@@ -118,7 +178,8 @@ static void create_and_enter_userns(void)
}
static
-bool test_unpriv_remount(int mount_flags, int remount_flags, int invalid_flags)
+bool test_unpriv_remount(const char *fstype, const char *mount_options,
+ int mount_flags, int remount_flags, int invalid_flags)
{
pid_t child;
@@ -151,9 +212,11 @@ bool test_unpriv_remount(int mount_flags, int remount_flags, int invalid_flags)
strerror(errno));
}
- if (mount("testing", "/tmp", "ramfs", mount_flags, NULL) != 0) {
- die("mount of /tmp failed: %s\n",
- strerror(errno));
+ if (mount("testing", "/tmp", fstype, mount_flags, mount_options) != 0) {
+ die("mount of %s with options '%s' on /tmp failed: %s\n",
+ fstype,
+ mount_options? mount_options : "",
+ strerror(errno));
}
create_and_enter_userns();
@@ -181,62 +244,127 @@ bool test_unpriv_remount(int mount_flags, int remount_flags, int invalid_flags)
static bool test_unpriv_remount_simple(int mount_flags)
{
- return test_unpriv_remount(mount_flags, mount_flags, 0);
+ return test_unpriv_remount("ramfs", NULL, mount_flags, mount_flags, 0);
}
static bool test_unpriv_remount_atime(int mount_flags, int invalid_flags)
{
- return test_unpriv_remount(mount_flags, mount_flags, invalid_flags);
+ return test_unpriv_remount("ramfs", NULL, mount_flags, mount_flags,
+ invalid_flags);
+}
+
+static bool test_priv_mount_unpriv_remount(void)
+{
+ pid_t child;
+ int ret;
+ const char *orig_path = "/dev";
+ const char *dest_path = "/tmp";
+ int orig_mnt_flags, remount_mnt_flags;
+
+ child = fork();
+ if (child == -1) {
+ die("fork failed: %s\n",
+ strerror(errno));
+ }
+ if (child != 0) { /* parent */
+ pid_t pid;
+ int status;
+ pid = waitpid(child, &status, 0);
+ if (pid == -1) {
+ die("waitpid failed: %s\n",
+ strerror(errno));
+ }
+ if (pid != child) {
+ die("waited for %d got %d\n",
+ child, pid);
+ }
+ if (!WIFEXITED(status)) {
+ die("child did not terminate cleanly\n");
+ }
+ return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false;
+ }
+
+ orig_mnt_flags = read_mnt_flags(orig_path);
+
+ create_and_enter_userns();
+ ret = unshare(CLONE_NEWNS);
+ if (ret != 0) {
+ die("unshare(CLONE_NEWNS) failed: %s\n",
+ strerror(errno));
+ }
+
+ ret = mount(orig_path, dest_path, "bind", MS_BIND | MS_REC, NULL);
+ if (ret != 0) {
+ die("recursive bind mount of %s onto %s failed: %s\n",
+ orig_path, dest_path, strerror(errno));
+ }
+
+ ret = mount(dest_path, dest_path, "none",
+ MS_REMOUNT | MS_BIND | orig_mnt_flags , NULL);
+ if (ret != 0) {
+ /* system("cat /proc/self/mounts"); */
+ die("remount of /tmp failed: %s\n",
+ strerror(errno));
+ }
+
+ remount_mnt_flags = read_mnt_flags(dest_path);
+ if (orig_mnt_flags != remount_mnt_flags) {
+ die("Mount flags unexpectedly changed during remount of %s originally mounted on %s\n",
+ dest_path, orig_path);
+ }
+ exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
- if (!test_unpriv_remount_simple(MS_RDONLY|MS_NODEV)) {
+ if (!test_unpriv_remount_simple(MS_RDONLY)) {
die("MS_RDONLY malfunctions\n");
}
- if (!test_unpriv_remount_simple(MS_NODEV)) {
+ if (!test_unpriv_remount("devpts", "newinstance", MS_NODEV, MS_NODEV, 0)) {
die("MS_NODEV malfunctions\n");
}
- if (!test_unpriv_remount_simple(MS_NOSUID|MS_NODEV)) {
+ if (!test_unpriv_remount_simple(MS_NOSUID)) {
die("MS_NOSUID malfunctions\n");
}
- if (!test_unpriv_remount_simple(MS_NOEXEC|MS_NODEV)) {
+ if (!test_unpriv_remount_simple(MS_NOEXEC)) {
die("MS_NOEXEC malfunctions\n");
}
- if (!test_unpriv_remount_atime(MS_RELATIME|MS_NODEV,
- MS_NOATIME|MS_NODEV))
+ if (!test_unpriv_remount_atime(MS_RELATIME,
+ MS_NOATIME))
{
die("MS_RELATIME malfunctions\n");
}
- if (!test_unpriv_remount_atime(MS_STRICTATIME|MS_NODEV,
- MS_NOATIME|MS_NODEV))
+ if (!test_unpriv_remount_atime(MS_STRICTATIME,
+ MS_NOATIME))
{
die("MS_STRICTATIME malfunctions\n");
}
- if (!test_unpriv_remount_atime(MS_NOATIME|MS_NODEV,
- MS_STRICTATIME|MS_NODEV))
+ if (!test_unpriv_remount_atime(MS_NOATIME,
+ MS_STRICTATIME))
{
- die("MS_RELATIME malfunctions\n");
+ die("MS_NOATIME malfunctions\n");
}
- if (!test_unpriv_remount_atime(MS_RELATIME|MS_NODIRATIME|MS_NODEV,
- MS_NOATIME|MS_NODEV))
+ if (!test_unpriv_remount_atime(MS_RELATIME|MS_NODIRATIME,
+ MS_NOATIME))
{
- die("MS_RELATIME malfunctions\n");
+ die("MS_RELATIME|MS_NODIRATIME malfunctions\n");
}
- if (!test_unpriv_remount_atime(MS_STRICTATIME|MS_NODIRATIME|MS_NODEV,
- MS_NOATIME|MS_NODEV))
+ if (!test_unpriv_remount_atime(MS_STRICTATIME|MS_NODIRATIME,
+ MS_NOATIME))
{
- die("MS_RELATIME malfunctions\n");
+ die("MS_STRICTATIME|MS_NODIRATIME malfunctions\n");
}
- if (!test_unpriv_remount_atime(MS_NOATIME|MS_NODIRATIME|MS_NODEV,
- MS_STRICTATIME|MS_NODEV))
+ if (!test_unpriv_remount_atime(MS_NOATIME|MS_NODIRATIME,
+ MS_STRICTATIME))
{
- die("MS_RELATIME malfunctions\n");
+ die("MS_NOATIME|MS_DIRATIME malfunctions\n");
}
- if (!test_unpriv_remount(MS_STRICTATIME|MS_NODEV, MS_NODEV,
- MS_NOATIME|MS_NODEV))
+ if (!test_unpriv_remount("ramfs", NULL, MS_STRICTATIME, 0, MS_NOATIME))
{
die("Default atime malfunctions\n");
}
+ if (!test_priv_mount_unpriv_remount()) {
+ die("Mount flags unexpectedly changed after remount\n");
+ }
return EXIT_SUCCESS;
}
prev parent reply other threads:[~2015-01-15 22:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-15 22:45 [3.16.y-ckt stable] Linux 3.16.7-ckt4 Luis Henriques
2015-01-15 22:45 ` Luis Henriques [this message]
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