From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <willy@infradead.org>
Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev,
linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org,
linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
linux-um@lists.infradead.org, xen-devel@lists.xenproject.org,
kvm@vger.kernel.org, Hugh Dickins <hughd@google.com>,
"Vishal Moola (Oracle)" <vishal.moola@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Huacai Chen <chenhuacai@kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Dinh Nguyen <dinguyen@kernel.org>,
Jonas Bonn <jonas@southpole.se>,
David Hildenbrand <david@redhat.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
"David S. Miller" <davem@davemloft.net>,
Richard Weinberger <richard@nod.at>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Dave Hansen <dave.hansen@linux.intel.com>,
Arnd Bergmann <arnd@arndb.de>,
Christophe Leroy <christophe.leroy@csgroup.eu>
Subject: [PATCH mm-unstable v8 00/31] Split ptdesc from struct page
Date: Mon, 31 Jul 2023 10:03:01 -0700 [thread overview]
Message-ID: <20230731170332.69404-1-vishal.moola@gmail.com> (raw)
The MM subsystem is trying to shrink struct page. This patchset
introduces a memory descriptor for page table tracking - struct ptdesc.
This patchset introduces ptdesc, splits ptdesc from struct page, and
converts many callers of page table constructor/destructors to use ptdescs.
Ptdesc is a foundation to further standardize page tables, and eventually
allow for dynamic allocation of page tables independent of struct page.
However, the use of pages for page table tracking is quite deeply
ingrained and varied across archictectures, so there is still a lot of
work to be done before that can happen.
This is rebased on mm-unstable.
v8:
Fix some compiler issues
v7:
Drop s390 gmap ptdesc conversions - gmap is unecessary complication
that can be dealt with later
Be more thorough with ptdesc struct sanity checks and comments
Rebase onto mm-unstable
Vishal Moola (Oracle) (31):
mm: Add PAGE_TYPE_OP folio functions
pgtable: Create struct ptdesc
mm: add utility functions for ptdesc
mm: Convert pmd_pgtable_page() callers to use pmd_ptdesc()
mm: Convert ptlock_alloc() to use ptdescs
mm: Convert ptlock_ptr() to use ptdescs
mm: Convert pmd_ptlock_init() to use ptdescs
mm: Convert ptlock_init() to use ptdescs
mm: Convert pmd_ptlock_free() to use ptdescs
mm: Convert ptlock_free() to use ptdescs
mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor}
powerpc: Convert various functions to use ptdescs
x86: Convert various functions to use ptdescs
s390: Convert various pgalloc functions to use ptdescs
mm: Remove page table members from struct page
pgalloc: Convert various functions to use ptdescs
arm: Convert various functions to use ptdescs
arm64: Convert various functions to use ptdescs
csky: Convert __pte_free_tlb() to use ptdescs
hexagon: Convert __pte_free_tlb() to use ptdescs
loongarch: Convert various functions to use ptdescs
m68k: Convert various functions to use ptdescs
mips: Convert various functions to use ptdescs
nios2: Convert __pte_free_tlb() to use ptdescs
openrisc: Convert __pte_free_tlb() to use ptdescs
riscv: Convert alloc_{pmd, pte}_late() to use ptdescs
sh: Convert pte_free_tlb() to use ptdescs
sparc64: Convert various functions to use ptdescs
sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents
um: Convert {pmd, pte}_free_tlb() to use ptdescs
mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers
Documentation/mm/split_page_table_lock.rst | 12 +-
.../zh_CN/mm/split_page_table_lock.rst | 14 +-
arch/arm/include/asm/tlb.h | 12 +-
arch/arm/mm/mmu.c | 7 +-
arch/arm64/include/asm/tlb.h | 14 +-
arch/arm64/mm/mmu.c | 7 +-
arch/csky/include/asm/pgalloc.h | 4 +-
arch/hexagon/include/asm/pgalloc.h | 8 +-
arch/loongarch/include/asm/pgalloc.h | 27 ++--
arch/loongarch/mm/pgtable.c | 7 +-
arch/m68k/include/asm/mcf_pgalloc.h | 47 +++---
arch/m68k/include/asm/sun3_pgalloc.h | 8 +-
arch/m68k/mm/motorola.c | 4 +-
arch/mips/include/asm/pgalloc.h | 32 ++--
arch/mips/mm/pgtable.c | 8 +-
arch/nios2/include/asm/pgalloc.h | 8 +-
arch/openrisc/include/asm/pgalloc.h | 8 +-
arch/powerpc/mm/book3s64/mmu_context.c | 10 +-
arch/powerpc/mm/book3s64/pgtable.c | 32 ++--
arch/powerpc/mm/pgtable-frag.c | 58 +++----
arch/riscv/include/asm/pgalloc.h | 8 +-
arch/riscv/mm/init.c | 16 +-
arch/s390/include/asm/pgalloc.h | 4 +-
arch/s390/include/asm/tlb.h | 4 +-
arch/s390/mm/pgalloc.c | 128 +++++++--------
arch/sh/include/asm/pgalloc.h | 9 +-
arch/sparc/mm/init_64.c | 17 +-
arch/sparc/mm/srmmu.c | 5 +-
arch/um/include/asm/pgalloc.h | 18 +--
arch/x86/mm/pgtable.c | 47 +++---
arch/x86/xen/mmu_pv.c | 2 +-
include/asm-generic/pgalloc.h | 88 +++++-----
include/asm-generic/tlb.h | 11 ++
include/linux/mm.h | 151 +++++++++++++-----
include/linux/mm_types.h | 18 ---
include/linux/page-flags.h | 30 +++-
include/linux/pgtable.h | 80 ++++++++++
mm/memory.c | 8 +-
38 files changed, 586 insertions(+), 385 deletions(-)
--
2.40.1
next reply other threads:[~2023-07-31 17:04 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-31 17:03 Vishal Moola (Oracle) [this message]
2023-07-31 17:03 ` [PATCH mm-unstable v8 01/31] mm: Add PAGE_TYPE_OP folio functions Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 02/31] pgtable: Create struct ptdesc Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 03/31] mm: add utility functions for ptdesc Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 04/31] mm: Convert pmd_pgtable_page() callers to use pmd_ptdesc() Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 05/31] mm: Convert ptlock_alloc() to use ptdescs Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 06/31] mm: Convert ptlock_ptr() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 07/31] mm: Convert pmd_ptlock_init() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 08/31] mm: Convert ptlock_init() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 09/31] mm: Convert pmd_ptlock_free() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 10/31] mm: Convert ptlock_free() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 11/31] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 12/31] powerpc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 13/31] x86: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 14/31] s390: Convert various pgalloc " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 15/31] mm: Remove page table members from struct page Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 16/31] pgalloc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 17/31] arm: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 18/31] arm64: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 19/31] csky: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 20/31] hexagon: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 21/31] loongarch: Convert various functions " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 22/31] m68k: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 23/31] mips: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 24/31] nios2: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 25/31] openrisc: " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 26/31] riscv: Convert alloc_{pmd, pte}_late() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 27/31] sh: Convert pte_free_tlb() " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 28/31] sparc64: Convert various functions " Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 29/31] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 30/31] um: Convert {pmd, pte}_free_tlb() to use ptdescs Vishal Moola (Oracle)
2023-07-31 17:03 ` [PATCH mm-unstable v8 31/31] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Vishal Moola (Oracle)
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