From: Minchan Kim <minchan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Michael Kerrisk <mtk.manpages@gmail.com>,
linux-api@vger.kernel.org, Hugh Dickins <hughd@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Jason Evans <je@fb.com>, Daniel Micay <danielmicay@gmail.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Shaohua Li <shli@kernel.org>, Michal Hocko <mhocko@suse.cz>,
yalin.wang2010@gmail.com, Andy Lutomirski <luto@amacapital.net>,
Minchan Kim <minchan@kernel.org>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>, Ralf Baechle <ralf@linux-mips.org>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>,
kbuild test robot <fengguang.wu@intel.com>
Subject: [PATCH v5 02/12] mm: define MADV_FREE for some arches
Date: Mon, 30 Nov 2015 15:39:33 +0900 [thread overview]
Message-ID: <1448865583-2446-3-git-send-email-minchan@kernel.org> (raw)
In-Reply-To: <1448865583-2446-1-git-send-email-minchan@kernel.org>
Most architectures use asm-generic, but alpha, mips, parisc, xtensa
need their own definitions.
This patch defines MADV_FREE for them so it should fix build break
for their architectures.
Maybe, I should split and feed piecies to arch maintainers but
included here for mmotm convenience.
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
---
arch/alpha/include/uapi/asm/mman.h | 1 +
arch/mips/include/uapi/asm/mman.h | 1 +
arch/parisc/include/uapi/asm/mman.h | 1 +
arch/xtensa/include/uapi/asm/mman.h | 1 +
4 files changed, 4 insertions(+)
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index f2f949671798..d828beb5e69b 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -47,6 +47,7 @@
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */
+#define MADV_FREE 7 /* free pages only if memory pressure */
/* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 97c03f468924..a6f8daff8e3b 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -73,6 +73,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
+#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index dd4d1876a020..bda94f0d0b94 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -43,6 +43,7 @@
#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
+#define MADV_FREE 8 /* free pages only if memory pressure */
/* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 360944e1da52..83c5150b06f9 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -86,6 +86,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
+#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
--
1.9.1
next prev parent reply other threads:[~2015-11-30 6:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-30 6:39 [PATCH v5 00/12] MADV_FREE support Minchan Kim
2015-11-30 6:39 ` [PATCH v5 01/12] mm: support madvise(MADV_FREE) Minchan Kim
2015-11-30 8:20 ` Mika Penttilä
2015-11-30 9:22 ` Minchan Kim
2015-11-30 6:39 ` Minchan Kim [this message]
2015-11-30 6:39 ` [PATCH v5 03/12] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures Minchan Kim
2015-11-30 6:39 ` [PATCH v5 04/12] mm: free swp_entry in madvise_free Minchan Kim
2015-11-30 6:39 ` [PATCH v5 05/12] mm: move lazily freed pages to inactive list Minchan Kim
2015-11-30 6:39 ` [PATCH v5 06/12] mm: mark stable page dirty in KSM Minchan Kim
2015-11-30 6:39 ` [PATCH v5 07/12] x86: add pmd_[dirty|mkclean] for THP Minchan Kim
2015-11-30 6:39 ` [PATCH v5 08/12] sparc: " Minchan Kim
2015-11-30 6:39 ` [PATCH v5 09/12] powerpc: " Minchan Kim
2015-11-30 6:39 ` [PATCH v5 10/12] arm: add pmd_mkclean " Minchan Kim
2015-11-30 6:39 ` [PATCH v5 11/12] arm64: " Minchan Kim
2015-11-30 6:39 ` [PATCH v5 12/12] mm: don't split THP page when syscall is called Minchan Kim
2016-01-28 7:16 ` [PATCH v5 00/12] MADV_FREE support Michael Kerrisk (man-pages)
2016-01-29 7:32 ` Minchan Kim
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