* + mm-pgtable-remove-tlb_remove_page_ptdesc.patch added to mm-unstable branch
@ 2025-02-26 2:36 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2025-02-26 2:36 UTC (permalink / raw)
To: mm-commits, yuzhao, willy, will, vishal.moola, rppt, riel, peterz,
npiggin, muchun.song, kevin.brodsky, jannh, hughd, david,
dave.hansen, arnd, aneesh.kumar, alexghiti, zhengqi.arch, akpm
The patch titled
Subject: mm: pgtable: remove tlb_remove_page_ptdesc()
has been added to the -mm mm-unstable branch. Its filename is
mm-pgtable-remove-tlb_remove_page_ptdesc.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-pgtable-remove-tlb_remove_page_ptdesc.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Qi Zheng <zhengqi.arch@bytedance.com>
Subject: mm: pgtable: remove tlb_remove_page_ptdesc()
Date: Tue, 25 Feb 2025 11:45:56 +0800
The tlb_remove_ptdesc()/tlb_remove_table() is specially designed for page
table pages, and now all architectures have been converted to use it to
remove page table pages. So let's remove tlb_remove_page_ptdesc(), it
currently has no users and should not be used for page table pages.
Link: https://lkml.kernel.org/r/3df04c8494339073b71be4acb2d92e108ecd1b60.1740454179.git.zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickens <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Matthew Wilcow (Oracle) <willy@infradead.org>
Cc: "Mike Rapoport (IBM)" <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/asm-generic/tlb.h | 6 ------
1 file changed, 6 deletions(-)
--- a/include/asm-generic/tlb.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/include/asm-generic/tlb.h
@@ -511,12 +511,6 @@ static inline void tlb_remove_ptdesc(str
tlb_remove_table(tlb, pt);
}
-/* Like tlb_remove_ptdesc, but for page-like page directories. */
-static inline void tlb_remove_page_ptdesc(struct mmu_gather *tlb, struct ptdesc *pt)
-{
- tlb_remove_page(tlb, ptdesc_page(pt));
-}
-
static inline void tlb_change_page_size(struct mmu_gather *tlb,
unsigned int page_size)
{
_
Patches currently in -mm which might be from zhengqi.arch@bytedance.com are
arm-pgtable-fix-null-pointer-dereference-issue.patch
mm-pgtable-make-generic-tlb_remove_table-use-struct-ptdesc.patch
mm-pgtable-change-pt-parameter-of-tlb_remove_ptdesc-to-struct-ptdesc.patch
mm-pgtable-convert-some-architectures-to-use-tlb_remove_ptdesc.patch
riscv-pgtable-unconditionally-use-tlb_remove_ptdesc.patch
x86-pgtable-convert-to-use-tlb_remove_ptdesc.patch
mm-pgtable-remove-tlb_remove_page_ptdesc.patch
^ permalink raw reply [flat|nested] 2+ messages in thread* + mm-pgtable-remove-tlb_remove_page_ptdesc.patch added to mm-unstable branch
@ 2024-12-24 0:45 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-12-24 0:45 UTC (permalink / raw)
To: mm-commits, yuzhao, willy, will, vishal.moola, tglx, ryan.roberts,
rppt, rientjes, peterz, npiggin, muchun.song, lorenzo.stoakes,
kevin.brodsky, jannh, hughd, david, dave.hansen, arnd,
aneesh.kumar, agordeev, zhengqi.arch, akpm
The patch titled
Subject: mm: pgtable: remove tlb_remove_page_ptdesc()
has been added to the -mm mm-unstable branch. Its filename is
mm-pgtable-remove-tlb_remove_page_ptdesc.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-pgtable-remove-tlb_remove_page_ptdesc.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Qi Zheng <zhengqi.arch@bytedance.com>
Subject: mm: pgtable: remove tlb_remove_page_ptdesc()
Date: Mon, 23 Dec 2024 17:41:01 +0800
Here we are explicitly dealing with struct page, and the following logic
semms strange:
tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte)));
tlb_remove_page_ptdesc
--> tlb_remove_page(tlb, ptdesc_page(pt));
So remove tlb_remove_page_ptdesc() and make callers call tlb_remove_page()
directly.
Link: https://lkml.kernel.org/r/b37435768345e0fcf7ea358f69b4a71767f0f530.1734945104.git.zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Originally-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/csky/include/asm/pgalloc.h | 2 +-
arch/hexagon/include/asm/pgalloc.h | 2 +-
arch/loongarch/include/asm/pgalloc.h | 2 +-
arch/m68k/include/asm/sun3_pgalloc.h | 2 +-
arch/mips/include/asm/pgalloc.h | 2 +-
arch/nios2/include/asm/pgalloc.h | 2 +-
arch/openrisc/include/asm/pgalloc.h | 2 +-
arch/riscv/include/asm/pgalloc.h | 2 +-
arch/sh/include/asm/pgalloc.h | 2 +-
arch/um/include/asm/pgalloc.h | 8 ++++----
include/asm-generic/tlb.h | 6 ------
11 files changed, 13 insertions(+), 19 deletions(-)
--- a/arch/csky/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/csky/include/asm/pgalloc.h
@@ -64,7 +64,7 @@ static inline pgd_t *pgd_alloc(struct mm
#define __pte_free_tlb(tlb, pte, address) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc(tlb, page_ptdesc(pte)); \
+ tlb_remove_page(tlb, (pte)); \
} while (0)
extern void pagetable_init(void);
--- a/arch/hexagon/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/hexagon/include/asm/pgalloc.h
@@ -90,7 +90,7 @@ static inline void pmd_populate_kernel(s
#define __pte_free_tlb(tlb, pte, addr) \
do { \
pagetable_dtor((page_ptdesc(pte))); \
- tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#endif
--- a/arch/loongarch/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/loongarch/include/asm/pgalloc.h
@@ -58,7 +58,7 @@ static inline pte_t *pte_alloc_one_kerne
#define __pte_free_tlb(tlb, pte, address) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#ifndef __PAGETABLE_PMD_FOLDED
--- a/arch/m68k/include/asm/sun3_pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/m68k/include/asm/sun3_pgalloc.h
@@ -20,7 +20,7 @@ extern const char bad_pmd_string[];
#define __pte_free_tlb(tlb, pte, addr) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
--- a/arch/mips/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/mips/include/asm/pgalloc.h
@@ -57,7 +57,7 @@ static inline void pgd_free(struct mm_st
#define __pte_free_tlb(tlb, pte, address) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#ifndef __PAGETABLE_PMD_FOLDED
--- a/arch/nios2/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/nios2/include/asm/pgalloc.h
@@ -31,7 +31,7 @@ extern pgd_t *pgd_alloc(struct mm_struct
#define __pte_free_tlb(tlb, pte, addr) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#endif /* _ASM_NIOS2_PGALLOC_H */
--- a/arch/openrisc/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/openrisc/include/asm/pgalloc.h
@@ -69,7 +69,7 @@ extern pte_t *pte_alloc_one_kernel(struc
#define __pte_free_tlb(tlb, pte, addr) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#endif
--- a/arch/riscv/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/riscv/include/asm/pgalloc.h
@@ -29,7 +29,7 @@ static inline void riscv_tlb_remove_ptde
tlb_remove_ptdesc(tlb, pt);
} else {
pagetable_dtor(pt);
- tlb_remove_page_ptdesc(tlb, pt);
+ tlb_remove_page(tlb, ptdesc_page((struct ptdesc *)pt));
}
}
--- a/arch/sh/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/sh/include/asm/pgalloc.h
@@ -35,7 +35,7 @@ static inline void pmd_populate(struct m
#define __pte_free_tlb(tlb, pte, addr) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#endif /* __ASM_SH_PGALLOC_H */
--- a/arch/um/include/asm/pgalloc.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/arch/um/include/asm/pgalloc.h
@@ -28,7 +28,7 @@ extern pgd_t *pgd_alloc(struct mm_struct
#define __pte_free_tlb(tlb, pte, address) \
do { \
pagetable_dtor(page_ptdesc(pte)); \
- tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \
+ tlb_remove_page((tlb), (pte)); \
} while (0)
#if CONFIG_PGTABLE_LEVELS > 2
@@ -36,15 +36,15 @@ do { \
#define __pmd_free_tlb(tlb, pmd, address) \
do { \
pagetable_dtor(virt_to_ptdesc(pmd)); \
- tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pmd)); \
+ tlb_remove_page((tlb), virt_to_page(pmd)); \
} while (0)
#if CONFIG_PGTABLE_LEVELS > 3
#define __pud_free_tlb(tlb, pud, address) \
do { \
- pagetable_dtor(virt_to_ptdesc(pud)); \
- tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pud)); \
+ pagetable_dtor(virt_to_ptdesc(pud)); \
+ tlb_remove_page((tlb), virt_to_page(pud)); \
} while (0)
#endif
--- a/include/asm-generic/tlb.h~mm-pgtable-remove-tlb_remove_page_ptdesc
+++ a/include/asm-generic/tlb.h
@@ -504,12 +504,6 @@ static inline void tlb_remove_ptdesc(str
tlb_remove_table(tlb, pt);
}
-/* Like tlb_remove_ptdesc, but for page-like page directories. */
-static inline void tlb_remove_page_ptdesc(struct mmu_gather *tlb, struct ptdesc *pt)
-{
- tlb_remove_page(tlb, ptdesc_page(pt));
-}
-
static inline void tlb_change_page_size(struct mmu_gather *tlb,
unsigned int page_size)
{
_
Patches currently in -mm which might be from zhengqi.arch@bytedance.com are
mm-pgtable-make-ptep_clear-non-atomic.patch
mm-khugepaged-recheck-pmd-state-in-retract_page_tables.patch
mm-userfaultfd-recheck-dst_pmd-entry-in-move_pages_pte.patch
mm-userfaultfd-recheck-dst_pmd-entry-in-move_pages_pte-fix.patch
mm-introduce-zap_nonpresent_ptes.patch
mm-introduce-do_zap_pte_range.patch
mm-skip-over-all-consecutive-none-ptes-in-do_zap_pte_range.patch
mm-zap_install_uffd_wp_if_needed-return-whether-uffd-wp-pte-has-been-re-installed.patch
mm-do_zap_pte_range-return-any_skipped-information-to-the-caller.patch
mm-make-zap_pte_range-handle-full-within-pmd-range.patch
mm-pgtable-reclaim-empty-pte-page-in-madvisemadv_dontneed.patch
mm-pgtable-reclaim-empty-pte-page-in-madvisemadv_dontneed-fix.patch
x86-mm-free-page-table-pages-by-rcu-instead-of-semi-rcu.patch
mm-pgtable-make-ptlock-be-freed-by-rcu.patch
x86-select-arch_supports_pt_reclaim-if-x86_64.patch
revert-mm-pgtable-make-ptlock-be-freed-by-rcu.patch
mm-pgtable-add-statistics-for-p4d-level-page-table.patch
arm64-pgtable-use-mmu-gather-to-free-p4d-level-page-table.patch
s390-pgtable-add-statistics-for-pud-and-p4d-level-page-table.patch
mm-pgtable-introduce-pagetable_dtor.patch
arm-pgtable-move-pagetable_dtor-to-__tlb_remove_table.patch
arm64-pgtable-move-pagetable_dtor-to-__tlb_remove_table.patch
riscv-pgtable-move-pagetable_dtor-to-__tlb_remove_table.patch
x86-pgtable-move-pagetable_dtor-to-__tlb_remove_table.patch
s390-pgtable-also-move-pagetable_dtor-of-pxd-to-__tlb_remove_table.patch
mm-pgtable-introduce-generic-__tlb_remove_table.patch
mm-pgtable-move-__tlb_remove_table_one-in-x86-to-generic-file.patch
mm-pgtable-remove-tlb_remove_page_ptdesc.patch
mm-pgtable-remove-tlb_remove_ptdesc.patch
mm-pgtable-introduce-generic-pagetable_dtor_free.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-12-24 0:45 Andrew Morton
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