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Date: Tue, 23 Jul 2019 08:54:06 +0300
From: Mike Rapoport <rppt@...ux.ibm.com>
To: Mark Rutland <mark.rutland@....com>
Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
Anshuman Khandual <anshuman.khandual@....com>,
Matthew Wilcox <willy@...radead.org>,
Michal Hocko <mhocko@...e.com>, Yu Zhao <yuzhao@...gle.com>,
linux-mm@...ck.org
Subject: Re: [PATCHv2] mm: treewide: Clarify pgtable_page_{ctor,dtor}() naming
On Mon, Jul 22, 2019 at 03:11:33PM +0100, Mark Rutland wrote:
> The naming of pgtable_page_{ctor,dtor}() seems to have confused a few
> people, and until recently arm64 used these erroneously/pointlessly for
> other levels of page table.
>
> To make it incredibly clear that these only apply to the PTE level, and
> to align with the naming of pgtable_pmd_page_{ctor,dtor}(), let's rename
> them to pgtable_pte_page_{ctor,dtor}().
>
> These changes were generated with the following shell script:
>
> ----
> git grep -lw 'pgtable_page_.tor' | while read FILE; do
> sed -i '{s/pgtable_page_ctor/pgtable_pte_page_ctor/}' $FILE;
> sed -i '{s/pgtable_page_dtor/pgtable_pte_page_dtor/}' $FILE;
> done
> ----
>
> ... with the documentation re-flowed to remain under 80 columns, and
> whitespace fixed up in macros to keep backslashes aligned.
>
> There should be no functional change as a result of this patch.
>
> Signed-off-by: Mark Rutland <mark.rutland@....com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Anshuman Khandual <anshuman.khandual@....com>
> Cc: Matthew Wilcox <willy@...radead.org>
> Cc: Michal Hocko <mhocko@...e.com>
> Cc: Yu Zhao <yuzhao@...gle.com>
> Cc: linux-mm@...ck.org
Reviewed-by: Mike Rapoport <rppt@...ux.ibm.com>
> ---
> Documentation/vm/split_page_table_lock.rst | 10 +++++-----
> arch/arc/include/asm/pgalloc.h | 4 ++--
> arch/arm/include/asm/tlb.h | 2 +-
> arch/arm/mm/mmu.c | 2 +-
> arch/arm64/include/asm/tlb.h | 2 +-
> arch/arm64/mm/mmu.c | 2 +-
> arch/csky/include/asm/pgalloc.h | 2 +-
> arch/hexagon/include/asm/pgalloc.h | 2 +-
> arch/ia64/include/asm/pgalloc.h | 4 ++--
> arch/m68k/include/asm/mcf_pgalloc.h | 6 +++---
> arch/m68k/include/asm/motorola_pgalloc.h | 6 +++---
> arch/m68k/include/asm/sun3_pgalloc.h | 2 +-
> arch/microblaze/include/asm/pgalloc.h | 4 ++--
> arch/mips/include/asm/pgalloc.h | 2 +-
> arch/nios2/include/asm/pgalloc.h | 2 +-
> arch/openrisc/include/asm/pgalloc.h | 6 +++---
> arch/powerpc/mm/pgtable-frag.c | 6 +++---
> arch/riscv/include/asm/pgalloc.h | 2 +-
> arch/s390/mm/pgalloc.c | 6 +++---
> arch/sh/include/asm/pgalloc.h | 6 +++---
> arch/sparc/mm/init_64.c | 4 ++--
> arch/sparc/mm/srmmu.c | 4 ++--
> arch/um/include/asm/pgalloc.h | 2 +-
> arch/unicore32/include/asm/tlb.h | 2 +-
> arch/x86/mm/pgtable.c | 2 +-
> arch/xtensa/include/asm/pgalloc.h | 4 ++--
> include/asm-generic/pgalloc.h | 8 ++++----
> include/linux/mm.h | 4 ++--
> 28 files changed, 54 insertions(+), 54 deletions(-)
>
> Since v1 [1]:
> * Rebase to v5.3-rc1
> * Use shell rather than coccinelle
>
> [1] https://lore.kernel.org/r/20190610163354.24835-1-mark.rutland@arm.com
>
> diff --git a/Documentation/vm/split_page_table_lock.rst b/Documentation/vm/split_page_table_lock.rst
> index 889b00be469f..ff51f4a5494d 100644
> --- a/Documentation/vm/split_page_table_lock.rst
> +++ b/Documentation/vm/split_page_table_lock.rst
> @@ -54,9 +54,9 @@ Hugetlb-specific helpers:
> Support of split page table lock by an architecture
> ===================================================
>
> -There's no need in special enabling of PTE split page table lock:
> -everything required is done by pgtable_page_ctor() and pgtable_page_dtor(),
> -which must be called on PTE table allocation / freeing.
> +There's no need in special enabling of PTE split page table lock: everything
> +required is done by pgtable_pte_page_ctor() and pgtable_pte_page_dtor(), which
> +must be called on PTE table allocation / freeing.
>
> Make sure the architecture doesn't use slab allocator for page table
> allocation: slab uses page->slab_cache for its pages.
> @@ -74,7 +74,7 @@ paths: i.e X86_PAE preallocate few PMDs on pgd_alloc().
>
> With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK.
>
> -NOTE: pgtable_page_ctor() and pgtable_pmd_page_ctor() can fail -- it must
> +NOTE: pgtable_pte_page_ctor() and pgtable_pmd_page_ctor() can fail -- it must
> be handled properly.
>
> page->ptl
> @@ -94,7 +94,7 @@ trick:
> split lock with enabled DEBUG_SPINLOCK or DEBUG_LOCK_ALLOC, but costs
> one more cache line for indirect access;
>
> -The spinlock_t allocated in pgtable_page_ctor() for PTE table and in
> +The spinlock_t allocated in pgtable_pte_page_ctor() for PTE table and in
> pgtable_pmd_page_ctor() for PMD table.
>
> Please, never access page->ptl directly -- use appropriate helper.
> diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
> index 9bdb8ed5b0db..c2b754b63846 100644
> --- a/arch/arc/include/asm/pgalloc.h
> +++ b/arch/arc/include/asm/pgalloc.h
> @@ -108,7 +108,7 @@ pte_alloc_one(struct mm_struct *mm)
> return 0;
> memzero((void *)pte_pg, PTRS_PER_PTE * sizeof(pte_t));
> page = virt_to_page(pte_pg);
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return 0;
> }
> @@ -123,7 +123,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>
> static inline void pte_free(struct mm_struct *mm, pgtable_t ptep)
> {
> - pgtable_page_dtor(virt_to_page(ptep));
> + pgtable_pte_page_dtor(virt_to_page(ptep));
> free_pages((unsigned long)ptep, __get_order_pte());
> }
>
> diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
> index b75ea15b85c0..669474add486 100644
> --- a/arch/arm/include/asm/tlb.h
> +++ b/arch/arm/include/asm/tlb.h
> @@ -44,7 +44,7 @@ static inline void __tlb_remove_table(void *_table)
> static inline void
> __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
>
> #ifndef CONFIG_ARM_LPAE
> /*
> diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
> index d9a0038774a6..426d9085396b 100644
> --- a/arch/arm/mm/mmu.c
> +++ b/arch/arm/mm/mmu.c
> @@ -731,7 +731,7 @@ static void *__init late_alloc(unsigned long sz)
> {
> void *ptr = (void *)__get_free_pages(GFP_PGTABLE_KERNEL, get_order(sz));
>
> - if (!ptr || !pgtable_page_ctor(virt_to_page(ptr)))
> + if (!ptr || !pgtable_pte_page_ctor(virt_to_page(ptr)))
> BUG();
> return ptr;
> }
> diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
> index a95d1fcb7e21..b76df828e6b7 100644
> --- a/arch/arm64/include/asm/tlb.h
> +++ b/arch/arm64/include/asm/tlb.h
> @@ -44,7 +44,7 @@ static inline void tlb_flush(struct mmu_gather *tlb)
> static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
> unsigned long addr)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> tlb_remove_table(tlb, pte);
> }
>
> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
> index 750a69dde39b..63d730c5b7a9 100644
> --- a/arch/arm64/mm/mmu.c
> +++ b/arch/arm64/mm/mmu.c
> @@ -383,7 +383,7 @@ static phys_addr_t pgd_pgtable_alloc(int shift)
> * folded, and if so pgtable_pmd_page_ctor() becomes nop.
> */
> if (shift == PAGE_SHIFT)
> - BUG_ON(!pgtable_page_ctor(phys_to_page(pa)));
> + BUG_ON(!pgtable_pte_page_ctor(phys_to_page(pa)));
> else if (shift == PMD_SHIFT)
> BUG_ON(!pgtable_pmd_page_ctor(phys_to_page(pa)));
>
> diff --git a/arch/csky/include/asm/pgalloc.h b/arch/csky/include/asm/pgalloc.h
> index 98c5716708d6..6bfd5dcf04e1 100644
> --- a/arch/csky/include/asm/pgalloc.h
> +++ b/arch/csky/include/asm/pgalloc.h
> @@ -71,7 +71,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
>
> #define __pte_free_tlb(tlb, pte, address) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page(tlb, pte); \
> } while (0)
>
> diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
> index d6544dc71258..d82a83d0b436 100644
> --- a/arch/hexagon/include/asm/pgalloc.h
> +++ b/arch/hexagon/include/asm/pgalloc.h
> @@ -96,7 +96,7 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
>
> #define __pte_free_tlb(tlb, pte, addr) \
> do { \
> - pgtable_page_dtor((pte)); \
> + pgtable_pte_page_dtor((pte)); \
> tlb_remove_page((tlb), (pte)); \
> } while (0)
>
> diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
> index c9e481023c25..70db524b75a6 100644
> --- a/arch/ia64/include/asm/pgalloc.h
> +++ b/arch/ia64/include/asm/pgalloc.h
> @@ -92,7 +92,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
> if (!pg)
> return NULL;
> page = virt_to_page(pg);
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> quicklist_free(0, NULL, pg);
> return NULL;
> }
> @@ -106,7 +106,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>
> static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> quicklist_free_page(0, NULL, pte);
> }
>
> diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
> index 4399d712f6db..b34d44d666a4 100644
> --- a/arch/m68k/include/asm/mcf_pgalloc.h
> +++ b/arch/m68k/include/asm/mcf_pgalloc.h
> @@ -41,7 +41,7 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
> static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
> unsigned long address)
> {
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> }
>
> @@ -54,7 +54,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
>
> if (!page)
> return NULL;
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return NULL;
> }
> @@ -73,7 +73,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
>
> static inline void pte_free(struct mm_struct *mm, struct page *page)
> {
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> }
>
> diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
> index d04d9ba9b976..acab315c851f 100644
> --- a/arch/m68k/include/asm/motorola_pgalloc.h
> +++ b/arch/m68k/include/asm/motorola_pgalloc.h
> @@ -36,7 +36,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
> page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
> if(!page)
> return NULL;
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return NULL;
> }
> @@ -51,7 +51,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>
> static inline void pte_free(struct mm_struct *mm, pgtable_t page)
> {
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> cache_page(kmap(page));
> kunmap(page);
> __free_page(page);
> @@ -60,7 +60,7 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t page)
> static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
> unsigned long address)
> {
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> cache_page(kmap(page));
> kunmap(page);
> __free_page(page);
> diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
> index 1a8ddbd0d23c..856121122b91 100644
> --- a/arch/m68k/include/asm/sun3_pgalloc.h
> +++ b/arch/m68k/include/asm/sun3_pgalloc.h
> @@ -21,7 +21,7 @@ extern const char bad_pmd_string[];
>
> #define __pte_free_tlb(tlb,pte,addr) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), pte); \
> } while (0)
>
> diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
> index f4cc9ffc449e..4676ad76ff03 100644
> --- a/arch/microblaze/include/asm/pgalloc.h
> +++ b/arch/microblaze/include/asm/pgalloc.h
> @@ -124,7 +124,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
> if (!ptepage)
> return NULL;
> clear_highpage(ptepage);
> - if (!pgtable_page_ctor(ptepage)) {
> + if (!pgtable_pte_page_ctor(ptepage)) {
> __free_page(ptepage);
> return NULL;
> }
> @@ -150,7 +150,7 @@ static inline void pte_free_slow(struct page *ptepage)
>
> static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
> {
> - pgtable_page_dtor(ptepage);
> + pgtable_pte_page_dtor(ptepage);
> __free_page(ptepage);
> }
>
> diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
> index aa16b85ddffc..ff9c3cf87363 100644
> --- a/arch/mips/include/asm/pgalloc.h
> +++ b/arch/mips/include/asm/pgalloc.h
> @@ -54,7 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>
> #define __pte_free_tlb(tlb,pte,address) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), pte); \
> } while (0)
>
> diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h
> index 4bc8cf72067e..7dd264c3c539 100644
> --- a/arch/nios2/include/asm/pgalloc.h
> +++ b/arch/nios2/include/asm/pgalloc.h
> @@ -41,7 +41,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>
> #define __pte_free_tlb(tlb, pte, addr) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), (pte)); \
> } while (0)
>
> diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
> index 3d4b397c2d06..7a3185d87935 100644
> --- a/arch/openrisc/include/asm/pgalloc.h
> +++ b/arch/openrisc/include/asm/pgalloc.h
> @@ -75,7 +75,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
> if (!pte)
> return NULL;
> clear_page(page_address(pte));
> - if (!pgtable_page_ctor(pte)) {
> + if (!pgtable_pte_page_ctor(pte)) {
> __free_page(pte);
> return NULL;
> }
> @@ -89,13 +89,13 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>
> static inline void pte_free(struct mm_struct *mm, struct page *pte)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> __free_page(pte);
> }
>
> #define __pte_free_tlb(tlb, pte, addr) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), (pte)); \
> } while (0)
>
> diff --git a/arch/powerpc/mm/pgtable-frag.c b/arch/powerpc/mm/pgtable-frag.c
> index a7b05214760c..ee4bd6d38602 100644
> --- a/arch/powerpc/mm/pgtable-frag.c
> +++ b/arch/powerpc/mm/pgtable-frag.c
> @@ -25,7 +25,7 @@ void pte_frag_destroy(void *pte_frag)
> count = ((unsigned long)pte_frag & ~PAGE_MASK) >> PTE_FRAG_SIZE_SHIFT;
> /* We allow PTE_FRAG_NR fragments from a PTE page */
> if (atomic_sub_and_test(PTE_FRAG_NR - count, &page->pt_frag_refcount)) {
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> }
> }
> @@ -61,7 +61,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel)
> page = alloc_page(PGALLOC_GFP | __GFP_ACCOUNT);
> if (!page)
> return NULL;
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return NULL;
> }
> @@ -113,7 +113,7 @@ void pte_fragment_free(unsigned long *table, int kernel)
> BUG_ON(atomic_read(&page->pt_frag_refcount) <= 0);
> if (atomic_dec_and_test(&page->pt_frag_refcount)) {
> if (!kernel)
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> }
> }
> diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h
> index 56a67d66f72f..c1e2780f7352 100644
> --- a/arch/riscv/include/asm/pgalloc.h
> +++ b/arch/riscv/include/asm/pgalloc.h
> @@ -78,7 +78,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>
> #define __pte_free_tlb(tlb, pte, buf) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), pte); \
> } while (0)
>
> diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
> index 99e06213a22b..962d32497912 100644
> --- a/arch/s390/mm/pgalloc.c
> +++ b/arch/s390/mm/pgalloc.c
> @@ -212,7 +212,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
> page = alloc_page(GFP_KERNEL);
> if (!page)
> return NULL;
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return NULL;
> }
> @@ -258,7 +258,7 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
> atomic_xor_bits(&page->_refcount, 3U << 24);
> }
>
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> }
>
> @@ -310,7 +310,7 @@ void __tlb_remove_table(void *_table)
> case 3: /* 4K page table with pgstes */
> if (mask & 3)
> atomic_xor_bits(&page->_refcount, 3 << 24);
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> break;
> }
> diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
> index b56f908b1395..473a46fb78fe 100644
> --- a/arch/sh/include/asm/pgalloc.h
> +++ b/arch/sh/include/asm/pgalloc.h
> @@ -46,7 +46,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
> if (!pg)
> return NULL;
> page = virt_to_page(pg);
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> quicklist_free(QUICK_PT, NULL, pg);
> return NULL;
> }
> @@ -60,13 +60,13 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>
> static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> quicklist_free_page(QUICK_PT, NULL, pte);
> }
>
> #define __pte_free_tlb(tlb,pte,addr) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), (pte)); \
> } while (0)
>
> diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
> index 4b099dd7a767..e6d91819da92 100644
> --- a/arch/sparc/mm/init_64.c
> +++ b/arch/sparc/mm/init_64.c
> @@ -2903,7 +2903,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm)
> struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
> if (!page)
> return NULL;
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> free_unref_page(page);
> return NULL;
> }
> @@ -2919,7 +2919,7 @@ static void __pte_free(pgtable_t pte)
> {
> struct page *page = virt_to_page(pte);
>
> - pgtable_page_dtor(page);
> + pgtable_pte_page_dtor(page);
> __free_page(page);
> }
>
> diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
> index aaebbc00d262..cc3ad64479ac 100644
> --- a/arch/sparc/mm/srmmu.c
> +++ b/arch/sparc/mm/srmmu.c
> @@ -378,7 +378,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm)
> if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
> return NULL;
> page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return NULL;
> }
> @@ -389,7 +389,7 @@ void pte_free(struct mm_struct *mm, pgtable_t pte)
> {
> unsigned long p;
>
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> p = (unsigned long)page_address(pte); /* Cached address (for test) */
> if (p == 0)
> BUG();
> diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
> index d7b282e9c4d5..f70df6f5626d 100644
> --- a/arch/um/include/asm/pgalloc.h
> +++ b/arch/um/include/asm/pgalloc.h
> @@ -29,7 +29,7 @@ extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
>
> #define __pte_free_tlb(tlb,pte, address) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb),(pte)); \
> } while (0)
>
> diff --git a/arch/unicore32/include/asm/tlb.h b/arch/unicore32/include/asm/tlb.h
> index 10d2356bfddd..4663d8cc80ef 100644
> --- a/arch/unicore32/include/asm/tlb.h
> +++ b/arch/unicore32/include/asm/tlb.h
> @@ -15,7 +15,7 @@
>
> #define __pte_free_tlb(tlb, pte, addr) \
> do { \
> - pgtable_page_dtor(pte); \
> + pgtable_pte_page_dtor(pte); \
> tlb_remove_page((tlb), (pte)); \
> } while (0)
>
> diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
> index 44816ff6411f..73757bc0eb87 100644
> --- a/arch/x86/mm/pgtable.c
> +++ b/arch/x86/mm/pgtable.c
> @@ -45,7 +45,7 @@ early_param("userpte", setup_userpte);
>
> void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> paravirt_release_pte(page_to_pfn(pte));
> paravirt_tlb_remove_table(tlb, pte);
> }
> diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
> index dd744aa450fa..1d38f0e755ba 100644
> --- a/arch/xtensa/include/asm/pgalloc.h
> +++ b/arch/xtensa/include/asm/pgalloc.h
> @@ -55,7 +55,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
> if (!pte)
> return NULL;
> page = virt_to_page(pte);
> - if (!pgtable_page_ctor(page)) {
> + if (!pgtable_pte_page_ctor(page)) {
> __free_page(page);
> return NULL;
> }
> @@ -69,7 +69,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>
> static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
> {
> - pgtable_page_dtor(pte);
> + pgtable_pte_page_dtor(pte);
> __free_page(pte);
> }
> #define pmd_pgtable(pmd) pmd_page(pmd)
> diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h
> index 8476175c07e7..ef7ece04a336 100644
> --- a/include/asm-generic/pgalloc.h
> +++ b/include/asm-generic/pgalloc.h
> @@ -49,7 +49,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
> * @mm: the mm_struct of the current context
> * @gfp: GFP flags to use for the allocation
> *
> - * Allocates a page and runs the pgtable_page_ctor().
> + * Allocates a page and runs the pgtable_pte_page_ctor().
> *
> * This function is intended for architectures that need
> * anything beyond simple page allocation or must have custom GFP flags.
> @@ -63,7 +63,7 @@ static inline pgtable_t __pte_alloc_one(struct mm_struct *mm, gfp_t gfp)
> pte = alloc_page(gfp);
> if (!pte)
> return NULL;
> - if (!pgtable_page_ctor(pte)) {
> + if (!pgtable_pte_page_ctor(pte)) {
> __free_page(pte);
> return NULL;
> }
> @@ -76,7 +76,7 @@ static inline pgtable_t __pte_alloc_one(struct mm_struct *mm, gfp_t gfp)
> * pte_alloc_one - allocate a page for PTE-level user page table
> * @mm: the mm_struct of the current context
> *
> - * Allocates a page and runs the pgtable_page_ctor().
> + * Allocates a page and runs the pgtable_pte_page_ctor().
> *
> * Return: `struct page` initialized as page table or %NULL on error
> */
> @@ -98,7 +98,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
> */
> static inline void pte_free(struct mm_struct *mm, struct page *pte_page)
> {
> - pgtable_page_dtor(pte_page);
> + pgtable_pte_page_dtor(pte_page);
> __free_page(pte_page);
> }
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 0334ca97c584..662230704a05 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1972,7 +1972,7 @@ static inline void pgtable_init(void)
> pgtable_cache_init();
> }
>
> -static inline bool pgtable_page_ctor(struct page *page)
> +static inline bool pgtable_pte_page_ctor(struct page *page)
> {
> if (!ptlock_init(page))
> return false;
> @@ -1981,7 +1981,7 @@ static inline bool pgtable_page_ctor(struct page *page)
> return true;
> }
>
> -static inline void pgtable_page_dtor(struct page *page)
> +static inline void pgtable_pte_page_dtor(struct page *page)
> {
> ptlock_free(page);
> __ClearPageTable(page);
> --
> 2.11.0
>
--
Sincerely yours,
Mike.
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