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Message-ID: <20250103184415.2744423-1-kevin.brodsky@arm.com>
Date: Fri, 3 Jan 2025 18:44:09 +0000
From: Kevin Brodsky <kevin.brodsky@....com>
To: linux-mm@...ck.org
Cc: Kevin Brodsky <kevin.brodsky@....com>,
Andrew Morton <akpm@...ux-foundation.org>,
Catalin Marinas <catalin.marinas@....com>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Linus Walleij <linus.walleij@...aro.org>,
Andy Lutomirski <luto@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
"Mike Rapoport (IBM)" <rppt@...nel.org>,
Ryan Roberts <ryan.roberts@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Will Deacon <will@...nel.org>,
Matthew Wilcox <willy@...radead.org>,
Qi Zheng <zhengqi.arch@...edance.com>,
linux-alpha@...r.kernel.org,
linux-arch@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-csky@...r.kernel.org,
linux-hexagon@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-m68k@...ts.linux-m68k.org,
linux-mips@...r.kernel.org,
linux-openrisc@...r.kernel.org,
linux-parisc@...r.kernel.org,
linux-riscv@...ts.infradead.org,
linux-s390@...r.kernel.org,
linux-snps-arc@...ts.infradead.org,
linux-um@...ts.infradead.org,
loongarch@...ts.linux.dev,
x86@...nel.org
Subject: [PATCH v2 0/6] Account page tables at all levels
v1: https://lore.kernel.org/linux-mm/20241219164425.2277022-1-kevin.brodsky@arm.com/
This series should be considered in conjunction with Qi's series [1].
Together, they ensure that page table ctor/dtor are called at all levels
(PTE to PGD) and all architectures, where page tables are regular pages.
Besides the improvement in accounting and general cleanup, this also
create a single place where construction/destruction hooks can be called
for all page tables, namely the now-generic pagetable_dtor() introduced
by Qi, and __pagetable_ctor() introduced in this series.
v2 is essentially v1 rebased on top of mm-unstable, which includes Qi's
v4 series. A number of patches from v1 were dropped:
* v1 patch 4 is superseded by patch 6 in Qi's series.
* v1 patch 5 and 6 moved to Qi's series from v3 onwards.
* v1 patch 7 is superseded by patch 4 in Qi's series.
Changes from v1 in the remaining patches:
* Patch 1 only introduces __pagetable_ctor() as there is now a single
generic pagetable_dtor().
* Patch 3 and 6: in arch/m68k/mm/motorola.c, free_pointer_table() can
now unconditionally call pagetable_dtor() since it is the same for all
levels.
* Patch 6 just uses pagetable_dtor() instead of introducing
pagetable_pgd_dtor().
* Added Dave Hansen's Acked-by to all patches.
- Kevin
[1] https://lore.kernel.org/linux-mm/cover.1735549103.git.zhengqi.arch@bytedance.com/
---
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: "Mike Rapoport (IBM)" <rppt@...nel.org>
Cc: Ryan Roberts <ryan.roberts@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Will Deacon <will@...nel.org>
Cc: Matthew Wilcox <willy@...radead.org>
Cc: Qi Zheng <zhengqi.arch@...edance.com>
Cc: linux-alpha@...r.kernel.org
Cc: linux-arch@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-csky@...r.kernel.org
Cc: linux-hexagon@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-m68k@...ts.linux-m68k.org
Cc: linux-mips@...r.kernel.org
Cc: linux-openrisc@...r.kernel.org
Cc: linux-parisc@...r.kernel.org
Cc: linux-riscv@...ts.infradead.org
Cc: linux-s390@...r.kernel.org
Cc: linux-snps-arc@...ts.infradead.org
Cc: linux-um@...ts.infradead.org
Cc: loongarch@...ts.linux.dev
Cc: x86@...nel.org
---
Kevin Brodsky (6):
mm: Move common part of pagetable_*_ctor to helper
parisc: mm: Ensure pagetable_pmd_[cd]tor are called
m68k: mm: Add calls to pagetable_pmd_[cd]tor
ARM: mm: Rename PGD helpers
asm-generic: pgalloc: Provide generic __pgd_{alloc,free}
mm: Introduce ctor/dtor at PGD level
arch/alpha/mm/init.c | 2 +-
arch/arc/include/asm/pgalloc.h | 9 ++----
arch/arm/mm/pgd.c | 16 +++++-----
arch/arm64/mm/pgd.c | 4 +--
arch/csky/include/asm/pgalloc.h | 2 +-
arch/hexagon/include/asm/pgalloc.h | 2 +-
arch/loongarch/mm/pgtable.c | 7 ++---
arch/m68k/include/asm/mcf_pgalloc.h | 3 +-
arch/m68k/include/asm/motorola_pgalloc.h | 6 ++--
arch/m68k/include/asm/sun3_pgalloc.h | 2 +-
arch/m68k/mm/motorola.c | 21 +++++++++----
arch/microblaze/include/asm/pgalloc.h | 7 +----
arch/mips/include/asm/pgalloc.h | 6 ----
arch/mips/mm/pgtable.c | 8 ++---
arch/nios2/mm/pgtable.c | 3 +-
arch/openrisc/include/asm/pgalloc.h | 6 ++--
arch/parisc/include/asm/pgalloc.h | 39 ++++++++----------------
arch/riscv/include/asm/pgalloc.h | 3 +-
arch/s390/include/asm/pgalloc.h | 9 +++++-
arch/um/kernel/mem.c | 7 ++---
arch/x86/mm/pgtable.c | 24 +++++++--------
arch/xtensa/include/asm/pgalloc.h | 2 +-
include/asm-generic/pgalloc.h | 28 ++++++++++++++++-
include/linux/mm.h | 31 ++++++++++---------
24 files changed, 126 insertions(+), 121 deletions(-)
base-commit: e2ce19225db5818f5dc22864cd225f8c425c3775
--
2.47.0
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