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V" , Kemeng Shi , Lance Yang , Peter Xu , Barry Song , linux-s390@vger.kernel.org Cc: Guo Ren , Christophe Leroy , Palmer Dabbelt , Mike Rapoport , Oscar Salvador , Alexandre Ghiti , Jisheng Zhang , Samuel Holland , Anup Patel , Josh Poimboeuf , Breno Leitao , Alexander Gordeev , Gerald Schaefer , Hugh Dickins , David Hildenbrand , Ryan Roberts , Matthew Wilcox , Alex Shi , nvdimm@lists.linux.dev, linux-fsdevel@vger.kernel.org, sparclinux@vger.kernel.org, Dawei Li , Arnd Bergmann , Christian Brauner , Alexander Viro , Jan Kara , Dan Williams , Max Filippov , Chris Zankel , "David S . Miller" , "Naveen N . Rao" , Bjorn Helgaas , Sam Ravnborg , Jason Gunthorpe Subject: [RFC PATCH 09/18] mm/pgtable: fully use ptdesc in pte_alloc_one series functions Date: Tue, 30 Jul 2024 14:47:03 +0800 Message-ID: <20240730064712.3714387-10-alexs@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240730064712.3714387-1-alexs@kernel.org> References: <20240730064712.3714387-1-alexs@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240729_234453_676995_67C1A611 X-CRM114-Status: GOOD ( 21.55 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Alex Shi Replace pgtable_t and struct page by ptdesc in pte_alloc_one series functions. Signed-off-by: Alex Shi Cc: linux-mm@kvack.org Cc: linux-arch@vger.kernel.org Cc: nvdimm@lists.linux.dev Cc: linux-fsdevel@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: Dawei Li Cc: Vishal Moola Cc: Arnd Bergmann Cc: Christian Brauner Cc: Alexander Viro Cc: Jan Kara Cc: Matthew Wilcox Cc: Dan Williams Cc: Max Filippov Cc: Chris Zankel Cc: Peter Zijlstra Cc: Andy Lutomirski Cc: H. Peter Anvin Cc: x86@kernel.org Cc: Dave Hansen Cc: Borislav Petkov Cc: Thomas Gleixner Cc: David S. Miller Cc: Naveen N. Rao Cc: Christophe Leroy Cc: Nicholas Piggin Cc: Michael Ellerman Cc: Russell King Cc: Breno Leitao Cc: Josh Poimboeuf Cc: Bjorn Helgaas Cc: Sam Ravnborg Cc: Peter Xu Cc: Jason Gunthorpe Cc: Mike Rapoport Cc: Hugh Dickins --- arch/arm/include/asm/pgalloc.h | 9 ++++----- arch/powerpc/include/asm/pgalloc.h | 4 ++-- arch/s390/include/asm/pgalloc.h | 2 +- arch/sparc/include/asm/pgalloc_32.h | 2 +- arch/sparc/include/asm/pgalloc_64.h | 2 +- arch/sparc/mm/init_64.c | 2 +- arch/sparc/mm/srmmu.c | 4 ++-- arch/x86/include/asm/pgalloc.h | 2 +- arch/x86/mm/pgtable.c | 2 +- arch/xtensa/include/asm/pgalloc.h | 12 ++++++------ fs/dax.c | 2 +- include/asm-generic/pgalloc.h | 6 +++--- mm/huge_memory.c | 8 ++++---- mm/memory.c | 8 ++++---- 14 files changed, 32 insertions(+), 33 deletions(-) diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h index a17f01235c29..e8501a6c3336 100644 --- a/arch/arm/include/asm/pgalloc.h +++ b/arch/arm/include/asm/pgalloc.h @@ -91,16 +91,15 @@ pte_alloc_one_kernel(struct mm_struct *mm) #define PGTABLE_HIGHMEM 0 #endif -static inline pgtable_t -pte_alloc_one(struct mm_struct *mm) +static inline struct ptdesc *pte_alloc_one(struct mm_struct *mm) { - struct page *pte; + struct ptdesc *pte; pte = __pte_alloc_one(mm, GFP_PGTABLE_USER | PGTABLE_HIGHMEM); if (!pte) return NULL; - if (!PageHighMem(pte)) - clean_pte_table(page_address(pte)); + if (!PageHighMem(ptdesc_page(pte))) + clean_pte_table(ptdesc_address(pte)); return pte; } diff --git a/arch/powerpc/include/asm/pgalloc.h b/arch/powerpc/include/asm/pgalloc.h index 3a971e2a8c73..37512f344b37 100644 --- a/arch/powerpc/include/asm/pgalloc.h +++ b/arch/powerpc/include/asm/pgalloc.h @@ -27,9 +27,9 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) return (pte_t *)pte_fragment_alloc(mm, 1); } -static inline pgtable_t pte_alloc_one(struct mm_struct *mm) +static inline struct ptdesc *pte_alloc_one(struct mm_struct *mm) { - return (pgtable_t)pte_fragment_alloc(mm, 0); + return (struct ptdesc *)pte_fragment_alloc(mm, 0); } void pte_frag_destroy(void *pte_frag); diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 7b84ef6dc4b6..771494526f6e 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -137,7 +137,7 @@ static inline void pmd_populate(struct mm_struct *mm, * page table entry allocation/free routines. */ #define pte_alloc_one_kernel(mm) ((pte_t *)page_table_alloc(mm)) -#define pte_alloc_one(mm) ((pte_t *)page_table_alloc(mm)) +#define pte_alloc_one(mm) ((struct ptdesc *)page_table_alloc(mm)) #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte) #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte) diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h index 4f73e87b22a3..bc3ef54d9564 100644 --- a/arch/sparc/include/asm/pgalloc_32.h +++ b/arch/sparc/include/asm/pgalloc_32.h @@ -55,7 +55,7 @@ static inline void free_pmd_fast(pmd_t * pmd) void pmd_set(pmd_t *pmdp, pte_t *ptep); #define pmd_populate_kernel pmd_populate -pgtable_t pte_alloc_one(struct mm_struct *mm); +struct ptdesc *pte_alloc_one(struct mm_struct *mm); static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) { diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h index caa7632be4c2..285aa7958912 100644 --- a/arch/sparc/include/asm/pgalloc_64.h +++ b/arch/sparc/include/asm/pgalloc_64.h @@ -61,7 +61,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) } pte_t *pte_alloc_one_kernel(struct mm_struct *mm); -pgtable_t pte_alloc_one(struct mm_struct *mm); +struct ptdesc *pte_alloc_one(struct mm_struct *mm); void pte_free_kernel(struct mm_struct *mm, pte_t *pte); void pte_free(struct mm_struct *mm, pgtable_t ptepage); diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 53d7cb5bbffe..e1b33f996469 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2900,7 +2900,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm) return pte; } -pgtable_t pte_alloc_one(struct mm_struct *mm) +struct ptdesc *pte_alloc_one(struct mm_struct *mm) { struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL | __GFP_ZERO, 0); diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 9df51a62333d..60bb8628bb1f 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -346,7 +346,7 @@ pgd_t *get_pgd_fast(void) * Alignments up to the page size are the same for physical and virtual * addresses of the nocache area. */ -pgtable_t pte_alloc_one(struct mm_struct *mm) +struct ptdesc *pte_alloc_one(struct mm_struct *mm) { pte_t *ptep; struct page *page; @@ -362,7 +362,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm) } spin_unlock(&mm->page_table_lock); - return ptep; + return (struct ptdesc *)ptep; } void pte_free(struct mm_struct *mm, pgtable_t ptep) diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h index dcd836b59beb..497c757b5b98 100644 --- a/arch/x86/include/asm/pgalloc.h +++ b/arch/x86/include/asm/pgalloc.h @@ -51,7 +51,7 @@ extern gfp_t __userpte_alloc_gfp; extern pgd_t *pgd_alloc(struct mm_struct *); extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); -extern pgtable_t pte_alloc_one(struct mm_struct *); +extern struct ptdesc *pte_alloc_one(struct mm_struct *); extern void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte); diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 93e54ba91fbf..c27d15cd01b9 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -28,7 +28,7 @@ void paravirt_tlb_remove_table(struct mmu_gather *tlb, void *table) gfp_t __userpte_alloc_gfp = GFP_PGTABLE_USER | PGTABLE_HIGHMEM; -pgtable_t pte_alloc_one(struct mm_struct *mm) +struct ptdesc *pte_alloc_one(struct mm_struct *mm) { return __pte_alloc_one(mm, __userpte_alloc_gfp); } diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h index 7fc0f9126dd3..a9206c02956e 100644 --- a/arch/xtensa/include/asm/pgalloc.h +++ b/arch/xtensa/include/asm/pgalloc.h @@ -51,15 +51,15 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) return ptep; } -static inline pgtable_t pte_alloc_one(struct mm_struct *mm) +static inline struct ptdesc *pte_alloc_one(struct mm_struct *mm) { - struct page *page; + struct ptdesc *ptdesc; - page = __pte_alloc_one(mm, GFP_PGTABLE_USER); - if (!page) + ptdesc = __pte_alloc_one(mm, GFP_PGTABLE_USER); + if (!ptdesc) return NULL; - ptes_clear(page_address(page)); - return page; + ptes_clear(ptdesc_address(ptdesc)); + return ptdesc; } #endif /* CONFIG_MMU */ diff --git a/fs/dax.c b/fs/dax.c index 6f7cea248206..51cbc08b22e7 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1222,7 +1222,7 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, struct vm_fault *vmf, DAX_PMD | DAX_ZERO_PAGE); if (arch_needs_pgtable_deposit()) { - ptdesc = page_ptdesc(pte_alloc_one(vma->vm_mm)); + ptdesc = pte_alloc_one(vma->vm_mm); if (!ptdesc) return VM_FAULT_OOM; } diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h index 7c48f5fbf8aa..1a4070f8d5dd 100644 --- a/include/asm-generic/pgalloc.h +++ b/include/asm-generic/pgalloc.h @@ -63,7 +63,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) * * Return: `struct page` referencing the ptdesc or %NULL on error */ -static inline pgtable_t __pte_alloc_one_noprof(struct mm_struct *mm, gfp_t gfp) +static inline struct ptdesc *__pte_alloc_one_noprof(struct mm_struct *mm, gfp_t gfp) { struct ptdesc *ptdesc; @@ -75,7 +75,7 @@ static inline pgtable_t __pte_alloc_one_noprof(struct mm_struct *mm, gfp_t gfp) return NULL; } - return ptdesc_page(ptdesc); + return ptdesc; } #define __pte_alloc_one(...) alloc_hooks(__pte_alloc_one_noprof(__VA_ARGS__)) @@ -88,7 +88,7 @@ static inline pgtable_t __pte_alloc_one_noprof(struct mm_struct *mm, gfp_t gfp) * * Return: `struct page` referencing the ptdesc or %NULL on error */ -static inline pgtable_t pte_alloc_one_noprof(struct mm_struct *mm) +static inline struct ptdesc *pte_alloc_one_noprof(struct mm_struct *mm) { return __pte_alloc_one_noprof(mm, GFP_PGTABLE_USER); } diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 236e1582d97e..6274eb7559ac 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -959,7 +959,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf, } folio_throttle_swaprate(folio, gfp); - ptdesc = page_ptdesc(pte_alloc_one(vma->vm_mm)); + ptdesc = pte_alloc_one(vma->vm_mm); if (unlikely(!ptdesc)) { ret = VM_FAULT_OOM; goto release; @@ -1091,7 +1091,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf) struct folio *zero_folio; vm_fault_t ret; - ptdesc = page_ptdesc(pte_alloc_one(vma->vm_mm)); + ptdesc = pte_alloc_one(vma->vm_mm); if (unlikely(!ptdesc)) return VM_FAULT_OOM; zero_folio = mm_get_huge_zero_folio(vma->vm_mm); @@ -1213,7 +1213,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write) return VM_FAULT_SIGBUS; if (arch_needs_pgtable_deposit()) { - ptdesc = page_ptdesc(pte_alloc_one(vma->vm_mm)); + ptdesc = pte_alloc_one(vma->vm_mm); if (!ptdesc) return VM_FAULT_OOM; } @@ -1376,7 +1376,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm, if (!vma_is_anonymous(dst_vma)) return 0; - ptdesc = page_ptdesc(pte_alloc_one(dst_mm)); + ptdesc = pte_alloc_one(dst_mm); if (unlikely(!ptdesc)) goto out; diff --git a/mm/memory.c b/mm/memory.c index 5b01d94a0b5f..37529e0a9ce2 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -445,7 +445,7 @@ void pmd_install(struct mm_struct *mm, pmd_t *pmd, pgtable_t *pte) int __pte_alloc(struct mm_struct *mm, pmd_t *pmd) { - struct ptdesc *ptdesc = page_ptdesc(pte_alloc_one(mm)); + struct ptdesc *ptdesc = pte_alloc_one(mm); if (!ptdesc) return -ENOMEM; @@ -4647,7 +4647,7 @@ static vm_fault_t __do_fault(struct vm_fault *vmf) * # flush A, B to clear the writeback */ if (pmd_none(*vmf->pmd) && !vmf->prealloc_pte) { - vmf->prealloc_pte = pte_alloc_one(vma->vm_mm); + vmf->prealloc_pte = ptdesc_page(pte_alloc_one(vma->vm_mm)); if (!vmf->prealloc_pte) return VM_FAULT_OOM; } @@ -4725,7 +4725,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) * related to pte entry. Use the preallocated table for that. */ if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) { - vmf->prealloc_pte = pte_alloc_one(vma->vm_mm); + vmf->prealloc_pte = ptdesc_page(pte_alloc_one(vma->vm_mm)); if (!vmf->prealloc_pte) return VM_FAULT_OOM; } @@ -5010,7 +5010,7 @@ static vm_fault_t do_fault_around(struct vm_fault *vmf) pte_off + vma_pages(vmf->vma) - vma_off) - 1; if (pmd_none(*vmf->pmd)) { - vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm); + vmf->prealloc_pte = ptdesc_page(pte_alloc_one(vmf->vma->vm_mm)); if (!vmf->prealloc_pte) return VM_FAULT_OOM; }