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>
Subject: [PATCH v6 00/33] Split ptdesc from struct page
Date: Mon, 26 Jun 2023 20:13:58 -0700 [thread overview]
Message-ID: <20230627031431.29653-1-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 next-20230626.
There is a minor conflict with patch 24 and the mm-unstable tree in
arch/m68k/mm/motorola.c - The end result of applying the patch should
be the same.
v6:
Fix compiler warnings/errors
v5:
More Acked-bys :)
Cleanup some documentation wording and formatting
Add pt_rcu_head to ptdesc
Add memcg to ptdesc (and align it with struct page)
Ensure all get_free_page() callers prohibit HIGHMEM for 32 bit support.
Renamed folio_{set, clear}_table() to folio_{set, clear}_pgtable()
Removed pagetable_clear() as it is not necessary right now
Dropped s390 _refcount to _pt_frag_refcount conversion
Vishal Moola (Oracle) (33):
mm: Add PAGE_TYPE_OP folio functions
s390: Use _pt_s390_gaddr for gmap address tracking
pgtable: Create struct ptdesc
mm: add utility functions for ptdesc
mm: Convert pmd_pgtable_page() to 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 gmap 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 | 46 ++--
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/gmap.c | 207 ++++++++++--------
arch/s390/mm/pgalloc.c | 108 ++++-----
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 | 153 +++++++++----
include/linux/mm_types.h | 14 --
include/linux/page-flags.h | 30 ++-
include/linux/pgtable.h | 77 +++++++
mm/memory.c | 8 +-
39 files changed, 686 insertions(+), 455 deletions(-)
--
2.40.1
next reply other threads:[~2023-06-27 3:13 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-27 3:13 Vishal Moola (Oracle) [this message]
2023-06-27 3:13 ` [PATCH v6 01/33] mm: Add PAGE_TYPE_OP folio functions Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 02/33] s390: Use _pt_s390_gaddr for gmap address tracking Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 03/33] pgtable: Create struct ptdesc Vishal Moola (Oracle)
2023-06-27 16:07 ` Peter Xu
2023-06-27 17:51 ` Vishal Moola
2023-06-27 3:14 ` [PATCH v6 04/33] mm: add utility functions for ptdesc Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 05/33] mm: Convert pmd_pgtable_page() to pmd_ptdesc() Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 06/33] mm: Convert ptlock_alloc() to use ptdescs Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 07/33] mm: Convert ptlock_ptr() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 08/33] mm: Convert pmd_ptlock_init() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 09/33] mm: Convert ptlock_init() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 10/33] mm: Convert pmd_ptlock_free() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 11/33] mm: Convert ptlock_free() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 12/33] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 13/33] powerpc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 14/33] x86: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 15/33] s390: Convert various gmap " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 16/33] s390: Convert various pgalloc " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 17/33] mm: Remove page table members from struct page Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 18/33] pgalloc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 19/33] arm: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 20/33] arm64: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 21/33] csky: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 22/33] hexagon: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 23/33] loongarch: Convert various functions " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 24/33] m68k: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 25/33] mips: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 26/33] nios2: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 27/33] openrisc: " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 28/33] riscv: Convert alloc_{pmd, pte}_late() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 29/33] sh: Convert pte_free_tlb() " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 30/33] sparc64: Convert various functions " Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 31/33] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 32/33] um: Convert {pmd, pte}_free_tlb() to use ptdescs Vishal Moola (Oracle)
2023-06-27 3:14 ` [PATCH v6 33/33] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Vishal Moola (Oracle)
2023-06-27 4:44 ` [PATCH v6 00/33] Split ptdesc from struct page Hugh Dickins
2023-06-27 7:14 ` David Hildenbrand
2023-06-27 20:13 ` Hugh Dickins
2023-06-28 7:41 ` David Hildenbrand
2023-06-28 18:51 ` Matthew Wilcox
2023-06-27 15:57 ` Matthew Wilcox
2023-06-27 20:25 ` Hugh Dickins
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