The patch titled Subject: mm: treewide: clarify pgtable_page_{ctor,dtor}() naming has been removed from the -mm tree. Its filename was mm-treewide-clarify-pgtable_page_ctordtor-naming.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Mark Rutland <mark.rutland@xxxxxxx> Subject: mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 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. Link: http://lkml.kernel.org/r/20190722141133.3116-1-mark.rutland@xxxxxxx Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx> Reviewed-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> Acked-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> [m68k] Cc: Anshuman Khandual <anshuman.khandual@xxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Yu Zhao <yuzhao@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- 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/m68k/include/asm/mcf_pgalloc.h | 6 +++--- arch/m68k/include/asm/motorola_pgalloc.h | 6 +++--- 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 | 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 | 2 +- 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 ++-- 26 files changed, 48 insertions(+), 48 deletions(-) --- a/arch/arc/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/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(struc 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()); } --- a/arch/arm64/include/asm/tlb.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/arm64/include/asm/tlb.h @@ -44,7 +44,7 @@ static inline void tlb_flush(struct mmu_ 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); } --- a/arch/arm64/mm/mmu.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/arm64/mm/mmu.c @@ -384,7 +384,7 @@ static phys_addr_t pgd_pgtable_alloc(int * 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))); --- a/arch/arm/include/asm/tlb.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/arm/include/asm/tlb.h @@ -44,7 +44,7 @@ static inline void __tlb_remove_table(vo 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 /* --- a/arch/arm/mm/mmu.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/arm/mm/mmu.c @@ -731,7 +731,7 @@ static void *__init late_alloc(unsigned { 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; } --- a/arch/csky/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/csky/include/asm/pgalloc.h @@ -71,7 +71,7 @@ static inline pgd_t *pgd_alloc(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) --- a/arch/hexagon/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/hexagon/include/asm/pgalloc.h @@ -94,7 +94,7 @@ static inline void pmd_populate_kernel(s #define __pte_free_tlb(tlb, pte, addr) \ do { \ - pgtable_page_dtor((pte)); \ + pgtable_pte_page_dtor((pte)); \ tlb_remove_page((tlb), (pte)); \ } while (0) --- a/arch/m68k/include/asm/mcf_pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/m68k/include/asm/mcf_pgalloc.h @@ -41,7 +41,7 @@ extern inline pmd_t *pmd_alloc_kernel(pg 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 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 static inline void pte_free(struct mm_struct *mm, struct page *page) { - pgtable_page_dtor(page); + pgtable_pte_page_dtor(page); __free_page(page); } --- a/arch/m68k/include/asm/motorola_pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/m68k/include/asm/motorola_pgalloc.h @@ -36,7 +36,7 @@ static inline pgtable_t pte_alloc_one(st 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(st 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_st 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); --- a/arch/m68k/include/asm/sun3_pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/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) --- a/arch/mips/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/mips/include/asm/pgalloc.h @@ -54,7 +54,7 @@ static inline void pgd_free(struct mm_st #define __pte_free_tlb(tlb,pte,address) \ do { \ - pgtable_page_dtor(pte); \ + pgtable_pte_page_dtor(pte); \ tlb_remove_page((tlb), pte); \ } while (0) --- a/arch/nios2/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/nios2/include/asm/pgalloc.h @@ -41,7 +41,7 @@ static inline void pgd_free(struct mm_st #define __pte_free_tlb(tlb, pte, addr) \ do { \ - pgtable_page_dtor(pte); \ + pgtable_pte_page_dtor(pte); \ tlb_remove_page((tlb), (pte)); \ } while (0) --- a/arch/openrisc/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/openrisc/include/asm/pgalloc.h @@ -75,7 +75,7 @@ static inline struct page *pte_alloc_one 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(struc 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) --- a/arch/powerpc/mm/pgtable-frag.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/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(struc 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 *ta 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); } } --- a/arch/riscv/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/riscv/include/asm/pgalloc.h @@ -78,7 +78,7 @@ static inline void pmd_free(struct mm_st #define __pte_free_tlb(tlb, pte, buf) \ do { \ - pgtable_page_dtor(pte); \ + pgtable_pte_page_dtor(pte); \ tlb_remove_page((tlb), pte); \ } while (0) --- a/arch/s390/mm/pgalloc.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/s390/mm/pgalloc.c @@ -210,7 +210,7 @@ unsigned long *page_table_alloc(struct m 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; } @@ -256,7 +256,7 @@ void page_table_free(struct mm_struct *m atomic_xor_bits(&page->_refcount, 3U << 24); } - pgtable_page_dtor(page); + pgtable_pte_page_dtor(page); __free_page(page); } @@ -308,7 +308,7 @@ 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; } --- a/arch/sh/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/sh/include/asm/pgalloc.h @@ -29,7 +29,7 @@ static inline void pmd_populate(struct m #define __pte_free_tlb(tlb,pte,addr) \ do { \ - pgtable_page_dtor(pte); \ + pgtable_pte_page_dtor(pte); \ tlb_remove_page((tlb), (pte)); \ } while (0) --- a/arch/sparc/mm/init_64.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/sparc/mm/init_64.c @@ -2903,7 +2903,7 @@ pgtable_t pte_alloc_one(struct mm_struct 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); } --- a/arch/sparc/mm/srmmu.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/sparc/mm/srmmu.c @@ -378,7 +378,7 @@ pgtable_t pte_alloc_one(struct mm_struct 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, pgta { 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(); --- a/arch/um/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/um/include/asm/pgalloc.h @@ -29,7 +29,7 @@ extern void pgd_free(struct mm_struct *m #define __pte_free_tlb(tlb,pte, address) \ do { \ - pgtable_page_dtor(pte); \ + pgtable_pte_page_dtor(pte); \ tlb_remove_page((tlb),(pte)); \ } while (0) --- a/arch/unicore32/include/asm/tlb.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/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) --- a/arch/x86/mm/pgtable.c~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/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); } --- a/arch/xtensa/include/asm/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/arch/xtensa/include/asm/pgalloc.h @@ -55,7 +55,7 @@ static inline pgtable_t pte_alloc_one(st 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(struc 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) --- a/Documentation/vm/split_page_table_lock.rst~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/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 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. --- a/include/asm-generic/pgalloc.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/include/asm-generic/pgalloc.h @@ -49,7 +49,7 @@ static inline void pte_free_kernel(struc * @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( 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( * 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(st */ 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); } --- a/include/linux/mm.h~mm-treewide-clarify-pgtable_page_ctordtor-naming +++ a/include/linux/mm.h @@ -1949,7 +1949,7 @@ 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; @@ -1958,7 +1958,7 @@ static inline bool pgtable_page_ctor(str 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); _ Patches currently in -mm which might be from mark.rutland@xxxxxxx are