Because all calls to thp_vma_allowable_order() pass vma->vm_flags as the vma_flags argument, we can remove the parameter and have the function access vma->vm_flags directly. Signed-off-by: Yafang Shao Acked-by: Usama Arif --- fs/proc/task_mmu.c | 3 +-- include/linux/huge_mm.h | 16 ++++++++-------- mm/huge_memory.c | 4 ++-- mm/khugepaged.c | 18 +++++++++--------- mm/memory.c | 11 +++++------ mm/shmem.c | 2 +- 6 files changed, 26 insertions(+), 28 deletions(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index fc35a0543f01..e713d1905750 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1369,8 +1369,7 @@ static int show_smap(struct seq_file *m, void *v) __show_smap(m, &mss, false); seq_printf(m, "THPeligible: %8u\n", - !!thp_vma_allowable_orders(vma, vma->vm_flags, TVA_SMAPS, - THP_ORDERS_ALL)); + !!thp_vma_allowable_orders(vma, TVA_SMAPS, THP_ORDERS_ALL)); if (arch_pkeys_enabled()) seq_printf(m, "ProtectionKey: %8u\n", vma_pkey(vma)); diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 4b2773235041..f73c72d58620 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -101,8 +101,8 @@ enum tva_type { TVA_FORCED_COLLAPSE, /* Forced collapse (e.g. MADV_COLLAPSE). */ }; -#define thp_vma_allowable_order(vma, vm_flags, type, order) \ - (!!thp_vma_allowable_orders(vma, vm_flags, type, BIT(order))) +#define thp_vma_allowable_order(vma, type, order) \ + (!!thp_vma_allowable_orders(vma, type, BIT(order))) #define split_folio(f) split_folio_to_list(f, NULL) @@ -271,14 +271,12 @@ static inline unsigned long thp_vma_suitable_orders(struct vm_area_struct *vma, } unsigned long __thp_vma_allowable_orders(struct vm_area_struct *vma, - vm_flags_t vm_flags, enum tva_type type, unsigned long orders); /** * thp_vma_allowable_orders - determine hugepage orders that are allowed for vma * @vma: the vm area to check - * @vm_flags: use these vm_flags instead of vma->vm_flags * @type: TVA type * @orders: bitfield of all orders to consider * @@ -292,10 +290,11 @@ unsigned long __thp_vma_allowable_orders(struct vm_area_struct *vma, */ static inline unsigned long thp_vma_allowable_orders(struct vm_area_struct *vma, - vm_flags_t vm_flags, enum tva_type type, unsigned long orders) { + vm_flags_t vm_flags = vma->vm_flags; + /* * Optimization to check if required orders are enabled early. Only * forced collapse ignores sysfs configs. @@ -314,7 +313,7 @@ unsigned long thp_vma_allowable_orders(struct vm_area_struct *vma, return 0; } - return __thp_vma_allowable_orders(vma, vm_flags, type, orders); + return __thp_vma_allowable_orders(vma, type, orders); } struct thpsize { @@ -334,8 +333,10 @@ struct thpsize { * through madvise or prctl. */ static inline bool vma_thp_disabled(struct vm_area_struct *vma, - vm_flags_t vm_flags, bool forced_collapse) + bool forced_collapse) { + vm_flags_t vm_flags = vma->vm_flags; + /* Are THPs disabled for this VMA? */ if (vm_flags & VM_NOHUGEPAGE) return true; @@ -564,7 +565,6 @@ static inline unsigned long thp_vma_suitable_orders(struct vm_area_struct *vma, } static inline unsigned long thp_vma_allowable_orders(struct vm_area_struct *vma, - vm_flags_t vm_flags, enum tva_type type, unsigned long orders) { diff --git a/mm/huge_memory.c b/mm/huge_memory.c index bcbc1674f3d3..db9a2a24d58c 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -98,7 +98,6 @@ static inline bool file_thp_enabled(struct vm_area_struct *vma) } unsigned long __thp_vma_allowable_orders(struct vm_area_struct *vma, - vm_flags_t vm_flags, enum tva_type type, unsigned long orders) { @@ -106,6 +105,7 @@ unsigned long __thp_vma_allowable_orders(struct vm_area_struct *vma, const bool in_pf = type == TVA_PAGEFAULT; const bool forced_collapse = type == TVA_FORCED_COLLAPSE; unsigned long supported_orders; + vm_flags_t vm_flags = vma->vm_flags; /* Check the intersection of requested and supported orders. */ if (vma_is_anonymous(vma)) @@ -122,7 +122,7 @@ unsigned long __thp_vma_allowable_orders(struct vm_area_struct *vma, if (!vma->vm_mm) /* vdso */ return 0; - if (thp_disabled_by_hw() || vma_thp_disabled(vma, vm_flags, forced_collapse)) + if (thp_disabled_by_hw() || vma_thp_disabled(vma, forced_collapse)) return 0; /* khugepaged doesn't collapse DAX vma, but page fault is fine. */ diff --git a/mm/khugepaged.c b/mm/khugepaged.c index d517659d905f..d70e1d4be3f2 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -499,13 +499,13 @@ static unsigned int collapse_max_ptes_none(unsigned int order, bool full_scan) /* Check what orders are allowed based on the vma and collapse type */ static unsigned long collapse_allowable_orders(struct vm_area_struct *vma, - vm_flags_t vm_flags, bool is_khugepaged) + bool is_khugepaged) { - enum tva_type tva_flags = is_khugepaged ? TVA_KHUGEPAGED : TVA_FORCED_COLLAPSE; + enum tva_type tva_type = is_khugepaged ? TVA_KHUGEPAGED : TVA_FORCED_COLLAPSE; unsigned long orders = is_khugepaged && vma_is_anonymous(vma) ? THP_ORDERS_ALL_ANON : BIT(HPAGE_PMD_ORDER); - return thp_vma_allowable_orders(vma, vm_flags, tva_flags, orders); + return thp_vma_allowable_orders(vma, tva_type, orders); } void khugepaged_enter_mm(struct mm_struct *mm) @@ -520,7 +520,7 @@ void khugepaged_enter_mm(struct mm_struct *mm) void khugepaged_enter_vma(struct vm_area_struct *vma) { - if (!collapse_allowable_orders(vma, vma->vm_flags, true)) + if (!collapse_allowable_orders(vma, TVA_KHUGEPAGED)) return; khugepaged_enter_mm(vma->vm_mm); } @@ -992,7 +992,7 @@ static int hugepage_vma_revalidate(struct mm_struct *mm, unsigned long address, /* Always check the PMD order to ensure its not shared by another VMA */ if (!thp_vma_suitable_order(vma, address, PMD_ORDER)) return SCAN_ADDRESS_RANGE; - if (!thp_vma_allowable_orders(vma, vma->vm_flags, type, BIT(order))) + if (!thp_vma_allowable_orders(vma, type, BIT(order))) return SCAN_VMA_CHECK; /* * Anon VMA expected, the address may be unmapped then @@ -1508,7 +1508,7 @@ static int collapse_scan_pmd(struct mm_struct *mm, memset(cc->node_load, 0, sizeof(cc->node_load)); nodes_clear(cc->alloc_nmask); - enabled_orders = collapse_allowable_orders(vma, vma->vm_flags, cc->is_khugepaged); + enabled_orders = collapse_allowable_orders(vma, cc->is_khugepaged); /* * If PMD is the only enabled order, enforce max_ptes_none, otherwise @@ -1777,7 +1777,7 @@ int collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr, * and map it by a PMD, regardless of sysfs THP settings. As such, let's * analogously elide sysfs THP settings here and force collapse. */ - if (!thp_vma_allowable_order(vma, vma->vm_flags, TVA_FORCED_COLLAPSE, PMD_ORDER)) + if (!thp_vma_allowable_order(vma, TVA_FORCED_COLLAPSE, PMD_ORDER)) return SCAN_VMA_CHECK; /* Keep pmd pgtable for uffd-wp; see comment in retract_page_tables() */ @@ -2719,7 +2719,7 @@ static unsigned int collapse_scan_mm_slot(unsigned int pages, int *result, progress++; break; } - if (!collapse_allowable_orders(vma, vma->vm_flags, true)) { + if (!collapse_allowable_orders(vma, true)) { skip: progress++; continue; @@ -3025,7 +3025,7 @@ int madvise_collapse(struct vm_area_struct *vma, unsigned long start, BUG_ON(vma->vm_start > start); BUG_ON(vma->vm_end < end); - if (!collapse_allowable_orders(vma, vma->vm_flags, false)) + if (!collapse_allowable_orders(vma, false)) return -EINVAL; cc = kmalloc(sizeof(*cc), GFP_KERNEL); diff --git a/mm/memory.c b/mm/memory.c index 618534b4963c..7b52068372d8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4558,7 +4558,7 @@ static struct folio *alloc_swap_folio(struct vm_fault *vmf) * Get a list of all the (large) orders below PMD_ORDER that are enabled * and suitable for swapping THP. */ - orders = thp_vma_allowable_orders(vma, vma->vm_flags, TVA_PAGEFAULT, + orders = thp_vma_allowable_orders(vma, TVA_PAGEFAULT, BIT(PMD_ORDER) - 1); orders = thp_vma_suitable_orders(vma, vmf->address, orders); orders = thp_swap_suitable_orders(swp_offset(entry), @@ -5107,7 +5107,7 @@ static struct folio *alloc_anon_folio(struct vm_fault *vmf) * for this vma. Then filter out the orders that can't be allocated over * the faulting address and still be fully contained in the vma. */ - orders = thp_vma_allowable_orders(vma, vma->vm_flags, TVA_PAGEFAULT, + orders = thp_vma_allowable_orders(vma, TVA_PAGEFAULT, BIT(PMD_ORDER) - 1); orders = thp_vma_suitable_orders(vma, vmf->address, orders); @@ -5379,7 +5379,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct folio *folio, struct page *pa * PMD mappings if THPs are disabled. As we already have a THP, * behave as if we are forcing a collapse. */ - if (thp_disabled_by_hw() || vma_thp_disabled(vma, vma->vm_flags, + if (thp_disabled_by_hw() || vma_thp_disabled(vma, /* forced_collapse=*/ true)) return ret; @@ -6289,7 +6289,6 @@ static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, .gfp_mask = __get_fault_gfp_mask(vma), }; struct mm_struct *mm = vma->vm_mm; - vm_flags_t vm_flags = vma->vm_flags; pgd_t *pgd; p4d_t *p4d; vm_fault_t ret; @@ -6304,7 +6303,7 @@ static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, return VM_FAULT_OOM; retry_pud: if (pud_none(*vmf.pud) && - thp_vma_allowable_order(vma, vm_flags, TVA_PAGEFAULT, PUD_ORDER)) { + thp_vma_allowable_order(vma, TVA_PAGEFAULT, PUD_ORDER)) { ret = create_huge_pud(&vmf); if (!(ret & VM_FAULT_FALLBACK)) return ret; @@ -6338,7 +6337,7 @@ static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, goto retry_pud; if (pmd_none(*vmf.pmd) && - thp_vma_allowable_order(vma, vm_flags, TVA_PAGEFAULT, PMD_ORDER)) { + thp_vma_allowable_order(vma, TVA_PAGEFAULT, PMD_ORDER)) { ret = create_huge_pmd(&vmf); if (!(ret & VM_FAULT_FALLBACK)) return ret; diff --git a/mm/shmem.c b/mm/shmem.c index 6580f3cd24bb..5882c37fa04e 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1809,7 +1809,7 @@ unsigned long shmem_allowable_huge_orders(struct inode *inode, vm_flags_t vm_flags = vma ? vma->vm_flags : 0; unsigned int global_orders; - if (thp_disabled_by_hw() || (vma && vma_thp_disabled(vma, vm_flags, shmem_huge_force))) + if (thp_disabled_by_hw() || (vma && vma_thp_disabled(vma, shmem_huge_force))) return 0; global_orders = shmem_huge_global_enabled(inode, index, write_end, -- 2.47.3