From 90d07210ab55e458c87048e1ad55582ecff0a3d5 Mon Sep 17 00:00:00 2001 From: Lorenzo Stoakes Date: Thu, 12 Jan 2023 12:39:29 +0000 Subject: mm: mlock: use folios and a folio batch internally This brings mlock in line with the folio batches declared in mm/swap.c and makes the code more consistent across the two. The existing mechanism for identifying which operation each folio in the batch is undergoing is maintained, i.e. using the lower 2 bits of the struct folio address (previously struct page address). This should continue to function correctly as folios remain at least system word-aligned. All invocations of mlock() pass either a non-compound page or the head of a THP-compound page and no tail pages need updating so this functionality works with struct folios being used internally rather than struct pages. In this patch the external interface is kept identical to before in order to maintain separation between patches in the series, using a rather awkward conversion from struct page to struct folio in relevant functions. However, this maintenance of the existing interface is intended to be temporary - the next patch in the series will update the interfaces to accept folios directly. Link: https://lkml.kernel.org/r/9f894d54d568773f4ed3cb0eef5f8932f62c95f4.1673526881.git.lstoakes@gmail.com Signed-off-by: Lorenzo Stoakes Acked-by: Vlastimil Babka Cc: Christian Brauner Cc: Geert Uytterhoeven Cc: Hugh Dickins Cc: Joel Fernandes (Google) Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Matthew Wilcox Cc: Mike Rapoport (IBM) Cc: William Kucharski Signed-off-by: Andrew Morton --- mm/mlock.c | 246 +++++++++++++++++++++++++++++++------------------------------ 1 file changed, 124 insertions(+), 122 deletions(-) (limited to 'mm/mlock.c') diff --git a/mm/mlock.c b/mm/mlock.c index 7032f6dd0ce1..f8e8d30ab08a 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -28,12 +28,12 @@ #include "internal.h" -struct mlock_pvec { +struct mlock_fbatch { local_lock_t lock; - struct pagevec vec; + struct folio_batch fbatch; }; -static DEFINE_PER_CPU(struct mlock_pvec, mlock_pvec) = { +static DEFINE_PER_CPU(struct mlock_fbatch, mlock_fbatch) = { .lock = INIT_LOCAL_LOCK(lock), }; @@ -48,192 +48,192 @@ bool can_do_mlock(void) EXPORT_SYMBOL(can_do_mlock); /* - * Mlocked pages are marked with PageMlocked() flag for efficient testing + * Mlocked folios are marked with the PG_mlocked flag for efficient testing * in vmscan and, possibly, the fault path; and to support semi-accurate * statistics. * - * An mlocked page [PageMlocked(page)] is unevictable. As such, it will - * be placed on the LRU "unevictable" list, rather than the [in]active lists. - * The unevictable list is an LRU sibling list to the [in]active lists. - * PageUnevictable is set to indicate the unevictable state. + * An mlocked folio [folio_test_mlocked(folio)] is unevictable. As such, it + * will be ostensibly placed on the LRU "unevictable" list (actually no such + * list exists), rather than the [in]active lists. PG_unevictable is set to + * indicate the unevictable state. */ -static struct lruvec *__mlock_page(struct page *page, struct lruvec *lruvec) +static struct lruvec *__mlock_folio(struct folio *folio, struct lruvec *lruvec) { /* There is nothing more we can do while it's off LRU */ - if (!TestClearPageLRU(page)) + if (!folio_test_clear_lru(folio)) return lruvec; - lruvec = folio_lruvec_relock_irq(page_folio(page), lruvec); + lruvec = folio_lruvec_relock_irq(folio, lruvec); - if (unlikely(page_evictable(page))) { + if (unlikely(folio_evictable(folio))) { /* - * This is a little surprising, but quite possible: - * PageMlocked must have got cleared already by another CPU. - * Could this page be on the Unevictable LRU? I'm not sure, - * but move it now if so. + * This is a little surprising, but quite possible: PG_mlocked + * must have got cleared already by another CPU. Could this + * folio be unevictable? I'm not sure, but move it now if so. */ - if (PageUnevictable(page)) { - del_page_from_lru_list(page, lruvec); - ClearPageUnevictable(page); - add_page_to_lru_list(page, lruvec); + if (folio_test_unevictable(folio)) { + lruvec_del_folio(lruvec, folio); + folio_clear_unevictable(folio); + lruvec_add_folio(lruvec, folio); + __count_vm_events(UNEVICTABLE_PGRESCUED, - thp_nr_pages(page)); + folio_nr_pages(folio)); } goto out; } - if (PageUnevictable(page)) { - if (PageMlocked(page)) - page->mlock_count++; + if (folio_test_unevictable(folio)) { + if (folio_test_mlocked(folio)) + folio->mlock_count++; goto out; } - del_page_from_lru_list(page, lruvec); - ClearPageActive(page); - SetPageUnevictable(page); - page->mlock_count = !!PageMlocked(page); - add_page_to_lru_list(page, lruvec); - __count_vm_events(UNEVICTABLE_PGCULLED, thp_nr_pages(page)); + lruvec_del_folio(lruvec, folio); + folio_clear_active(folio); + folio_set_unevictable(folio); + folio->mlock_count = !!folio_test_mlocked(folio); + lruvec_add_folio(lruvec, folio); + __count_vm_events(UNEVICTABLE_PGCULLED, folio_nr_pages(folio)); out: - SetPageLRU(page); + folio_set_lru(folio); return lruvec; } -static struct lruvec *__mlock_new_page(struct page *page, struct lruvec *lruvec) +static struct lruvec *__mlock_new_folio(struct folio *folio, struct lruvec *lruvec) { - VM_BUG_ON_PAGE(PageLRU(page), page); + VM_BUG_ON_FOLIO(folio_test_lru(folio), folio); - lruvec = folio_lruvec_relock_irq(page_folio(page), lruvec); + lruvec = folio_lruvec_relock_irq(folio, lruvec); /* As above, this is a little surprising, but possible */ - if (unlikely(page_evictable(page))) + if (unlikely(folio_evictable(folio))) goto out; - SetPageUnevictable(page); - page->mlock_count = !!PageMlocked(page); - __count_vm_events(UNEVICTABLE_PGCULLED, thp_nr_pages(page)); + folio_set_unevictable(folio); + folio->mlock_count = !!folio_test_mlocked(folio); + __count_vm_events(UNEVICTABLE_PGCULLED, folio_nr_pages(folio)); out: - add_page_to_lru_list(page, lruvec); - SetPageLRU(page); + lruvec_add_folio(lruvec, folio); + folio_set_lru(folio); return lruvec; } -static struct lruvec *__munlock_page(struct page *page, struct lruvec *lruvec) +static struct lruvec *__munlock_folio(struct folio *folio, struct lruvec *lruvec) { - int nr_pages = thp_nr_pages(page); + int nr_pages = folio_nr_pages(folio); bool isolated = false; - if (!TestClearPageLRU(page)) + if (!folio_test_clear_lru(folio)) goto munlock; isolated = true; - lruvec = folio_lruvec_relock_irq(page_folio(page), lruvec); + lruvec = folio_lruvec_relock_irq(folio, lruvec); - if (PageUnevictable(page)) { + if (folio_test_unevictable(folio)) { /* Then mlock_count is maintained, but might undercount */ - if (page->mlock_count) - page->mlock_count--; - if (page->mlock_count) + if (folio->mlock_count) + folio->mlock_count--; + if (folio->mlock_count) goto out; } /* else assume that was the last mlock: reclaim will fix it if not */ munlock: - if (TestClearPageMlocked(page)) { - __mod_zone_page_state(page_zone(page), NR_MLOCK, -nr_pages); - if (isolated || !PageUnevictable(page)) + if (folio_test_clear_mlocked(folio)) { + __zone_stat_mod_folio(folio, NR_MLOCK, -nr_pages); + if (isolated || !folio_test_unevictable(folio)) __count_vm_events(UNEVICTABLE_PGMUNLOCKED, nr_pages); else __count_vm_events(UNEVICTABLE_PGSTRANDED, nr_pages); } - /* page_evictable() has to be checked *after* clearing Mlocked */ - if (isolated && PageUnevictable(page) && page_evictable(page)) { - del_page_from_lru_list(page, lruvec); - ClearPageUnevictable(page); - add_page_to_lru_list(page, lruvec); + /* folio_evictable() has to be checked *after* clearing Mlocked */ + if (isolated && folio_test_unevictable(folio) && folio_evictable(folio)) { + lruvec_del_folio(lruvec, folio); + folio_clear_unevictable(folio); + lruvec_add_folio(lruvec, folio); __count_vm_events(UNEVICTABLE_PGRESCUED, nr_pages); } out: if (isolated) - SetPageLRU(page); + folio_set_lru(folio); return lruvec; } /* - * Flags held in the low bits of a struct page pointer on the mlock_pvec. + * Flags held in the low bits of a struct folio pointer on the mlock_fbatch. */ -#define LRU_PAGE 0x1 -#define NEW_PAGE 0x2 -static inline struct page *mlock_lru(struct page *page) +#define LRU_FOLIO 0x1 +#define NEW_FOLIO 0x2 +static inline struct folio *mlock_lru(struct folio *folio) { - return (struct page *)((unsigned long)page + LRU_PAGE); + return (struct folio *)((unsigned long)folio + LRU_FOLIO); } -static inline struct page *mlock_new(struct page *page) +static inline struct folio *mlock_new(struct folio *folio) { - return (struct page *)((unsigned long)page + NEW_PAGE); + return (struct folio *)((unsigned long)folio + NEW_FOLIO); } /* - * mlock_pagevec() is derived from pagevec_lru_move_fn(): - * perhaps that can make use of such page pointer flags in future, - * but for now just keep it for mlock. We could use three separate - * pagevecs instead, but one feels better (munlocking a full pagevec - * does not need to drain mlocking pagevecs first). + * mlock_folio_batch() is derived from folio_batch_move_lru(): perhaps that can + * make use of such folio pointer flags in future, but for now just keep it for + * mlock. We could use three separate folio batches instead, but one feels + * better (munlocking a full folio batch does not need to drain mlocking folio + * batches first). */ -static void mlock_pagevec(struct pagevec *pvec) +static void mlock_folio_batch(struct folio_batch *fbatch) { struct lruvec *lruvec = NULL; unsigned long mlock; - struct page *page; + struct folio *folio; int i; - for (i = 0; i < pagevec_count(pvec); i++) { - page = pvec->pages[i]; - mlock = (unsigned long)page & (LRU_PAGE | NEW_PAGE); - page = (struct page *)((unsigned long)page - mlock); - pvec->pages[i] = page; + for (i = 0; i < folio_batch_count(fbatch); i++) { + folio = fbatch->folios[i]; + mlock = (unsigned long)folio & (LRU_FOLIO | NEW_FOLIO); + folio = (struct folio *)((unsigned long)folio - mlock); + fbatch->folios[i] = folio; - if (mlock & LRU_PAGE) - lruvec = __mlock_page(page, lruvec); - else if (mlock & NEW_PAGE) - lruvec = __mlock_new_page(page, lruvec); + if (mlock & LRU_FOLIO) + lruvec = __mlock_folio(folio, lruvec); + else if (mlock & NEW_FOLIO) + lruvec = __mlock_new_folio(folio, lruvec); else - lruvec = __munlock_page(page, lruvec); + lruvec = __munlock_folio(folio, lruvec); } if (lruvec) unlock_page_lruvec_irq(lruvec); - release_pages(pvec->pages, pvec->nr); - pagevec_reinit(pvec); + release_pages(fbatch->folios, fbatch->nr); + folio_batch_reinit(fbatch); } void mlock_page_drain_local(void) { - struct pagevec *pvec; + struct folio_batch *fbatch; - local_lock(&mlock_pvec.lock); - pvec = this_cpu_ptr(&mlock_pvec.vec); - if (pagevec_count(pvec)) - mlock_pagevec(pvec); - local_unlock(&mlock_pvec.lock); + local_lock(&mlock_fbatch.lock); + fbatch = this_cpu_ptr(&mlock_fbatch.fbatch); + if (folio_batch_count(fbatch)) + mlock_folio_batch(fbatch); + local_unlock(&mlock_fbatch.lock); } void mlock_page_drain_remote(int cpu) { - struct pagevec *pvec; + struct folio_batch *fbatch; WARN_ON_ONCE(cpu_online(cpu)); - pvec = &per_cpu(mlock_pvec.vec, cpu); - if (pagevec_count(pvec)) - mlock_pagevec(pvec); + fbatch = &per_cpu(mlock_fbatch.fbatch, cpu); + if (folio_batch_count(fbatch)) + mlock_folio_batch(fbatch); } bool need_mlock_page_drain(int cpu) { - return pagevec_count(&per_cpu(mlock_pvec.vec, cpu)); + return folio_batch_count(&per_cpu(mlock_fbatch.fbatch, cpu)); } /** @@ -242,10 +242,10 @@ bool need_mlock_page_drain(int cpu) */ void mlock_folio(struct folio *folio) { - struct pagevec *pvec; + struct folio_batch *fbatch; - local_lock(&mlock_pvec.lock); - pvec = this_cpu_ptr(&mlock_pvec.vec); + local_lock(&mlock_fbatch.lock); + fbatch = this_cpu_ptr(&mlock_fbatch.fbatch); if (!folio_test_set_mlocked(folio)) { int nr_pages = folio_nr_pages(folio); @@ -255,10 +255,10 @@ void mlock_folio(struct folio *folio) } folio_get(folio); - if (!pagevec_add(pvec, mlock_lru(&folio->page)) || + if (!folio_batch_add(fbatch, mlock_lru(folio)) || folio_test_large(folio) || lru_cache_disabled()) - mlock_pagevec(pvec); - local_unlock(&mlock_pvec.lock); + mlock_folio_batch(fbatch); + local_unlock(&mlock_fbatch.lock); } /** @@ -267,20 +267,22 @@ void mlock_folio(struct folio *folio) */ void mlock_new_page(struct page *page) { - struct pagevec *pvec; - int nr_pages = thp_nr_pages(page); + struct folio_batch *fbatch; + struct folio *folio = page_folio(page); + int nr_pages = folio_nr_pages(folio); - local_lock(&mlock_pvec.lock); - pvec = this_cpu_ptr(&mlock_pvec.vec); - SetPageMlocked(page); - mod_zone_page_state(page_zone(page), NR_MLOCK, nr_pages); + local_lock(&mlock_fbatch.lock); + fbatch = this_cpu_ptr(&mlock_fbatch.fbatch); + folio_set_mlocked(folio); + + zone_stat_mod_folio(folio, NR_MLOCK, nr_pages); __count_vm_events(UNEVICTABLE_PGMLOCKED, nr_pages); - get_page(page); - if (!pagevec_add(pvec, mlock_new(page)) || - PageHead(page) || lru_cache_disabled()) - mlock_pagevec(pvec); - local_unlock(&mlock_pvec.lock); + folio_get(folio); + if (!folio_batch_add(fbatch, mlock_new(folio)) || + folio_test_large(folio) || lru_cache_disabled()) + mlock_folio_batch(fbatch); + local_unlock(&mlock_fbatch.lock); } /** @@ -289,20 +291,20 @@ void mlock_new_page(struct page *page) */ void munlock_page(struct page *page) { - struct pagevec *pvec; + struct folio_batch *fbatch; + struct folio *folio = page_folio(page); - local_lock(&mlock_pvec.lock); - pvec = this_cpu_ptr(&mlock_pvec.vec); + local_lock(&mlock_fbatch.lock); + fbatch = this_cpu_ptr(&mlock_fbatch.fbatch); /* - * TestClearPageMlocked(page) must be left to __munlock_page(), - * which will check whether the page is multiply mlocked. + * folio_test_clear_mlocked(folio) must be left to __munlock_folio(), + * which will check whether the folio is multiply mlocked. */ - - get_page(page); - if (!pagevec_add(pvec, page) || - PageHead(page) || lru_cache_disabled()) - mlock_pagevec(pvec); - local_unlock(&mlock_pvec.lock); + folio_get(folio); + if (!folio_batch_add(fbatch, folio) || + folio_test_large(folio) || lru_cache_disabled()) + mlock_folio_batch(fbatch); + local_unlock(&mlock_fbatch.lock); } static int mlock_pte_range(pmd_t *pmd, unsigned long addr, -- cgit v1.2.3 From 96f97c438f61ddba94117dcd1a1eb0aaafa22309 Mon Sep 17 00:00:00 2001 From: Lorenzo Stoakes Date: Thu, 12 Jan 2023 12:39:31 +0000 Subject: mm: mlock: update the interface to use folios Update the mlock interface to accept folios rather than pages, bringing the interface in line with the internal implementation. munlock_vma_page() still requires a page_folio() conversion, however this is consistent with the existent mlock_vma_page() implementation and a product of rmap still dealing in pages rather than folios. Link: https://lkml.kernel.org/r/cba12777c5544305014bc0cbec56bb4cc71477d8.1673526881.git.lstoakes@gmail.com Signed-off-by: Lorenzo Stoakes Acked-by: Vlastimil Babka Cc: Christian Brauner Cc: Geert Uytterhoeven Cc: Hugh Dickins Cc: Joel Fernandes (Google) Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Matthew Wilcox Cc: Mike Rapoport (IBM) Cc: William Kucharski Signed-off-by: Andrew Morton --- mm/internal.h | 38 ++++++++++++++++++++++---------------- mm/migrate.c | 2 +- mm/mlock.c | 38 ++++++++++++++++++-------------------- mm/page_alloc.c | 2 +- mm/rmap.c | 4 ++-- mm/swap.c | 10 +++++----- 6 files changed, 49 insertions(+), 45 deletions(-) (limited to 'mm/mlock.c') diff --git a/mm/internal.h b/mm/internal.h index 583e15357e09..973b48e8b1af 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -533,10 +533,9 @@ extern int mlock_future_check(struct mm_struct *mm, unsigned long flags, * should be called with vma's mmap_lock held for read or write, * under page table lock for the pte/pmd being added or removed. * - * mlock is usually called at the end of page_add_*_rmap(), - * munlock at the end of page_remove_rmap(); but new anon - * pages are managed by lru_cache_add_inactive_or_unevictable() - * calling mlock_new_page(). + * mlock is usually called at the end of page_add_*_rmap(), munlock at + * the end of page_remove_rmap(); but new anon folios are managed by + * folio_add_lru_vma() calling mlock_new_folio(). * * @compound is used to include pmd mappings of THPs, but filter out * pte mappings of THPs, which cannot be consistently counted: a pte @@ -565,18 +564,25 @@ static inline void mlock_vma_page(struct page *page, mlock_vma_folio(page_folio(page), vma, compound); } -void munlock_page(struct page *page); -static inline void munlock_vma_page(struct page *page, +void munlock_folio(struct folio *folio); + +static inline void munlock_vma_folio(struct folio *folio, struct vm_area_struct *vma, bool compound) { if (unlikely(vma->vm_flags & VM_LOCKED) && - (compound || !PageTransCompound(page))) - munlock_page(page); + (compound || !folio_test_large(folio))) + munlock_folio(folio); +} + +static inline void munlock_vma_page(struct page *page, + struct vm_area_struct *vma, bool compound) +{ + munlock_vma_folio(page_folio(page), vma, compound); } -void mlock_new_page(struct page *page); -bool need_mlock_page_drain(int cpu); -void mlock_page_drain_local(void); -void mlock_page_drain_remote(int cpu); +void mlock_new_folio(struct folio *folio); +bool need_mlock_drain(int cpu); +void mlock_drain_local(void); +void mlock_drain_remote(int cpu); extern pmd_t maybe_pmd_mkwrite(pmd_t pmd, struct vm_area_struct *vma); @@ -665,10 +671,10 @@ static inline void mlock_vma_page(struct page *page, struct vm_area_struct *vma, bool compound) { } static inline void munlock_vma_page(struct page *page, struct vm_area_struct *vma, bool compound) { } -static inline void mlock_new_page(struct page *page) { } -static inline bool need_mlock_page_drain(int cpu) { return false; } -static inline void mlock_page_drain_local(void) { } -static inline void mlock_page_drain_remote(int cpu) { } +static inline void mlock_new_folio(struct folio *folio) { } +static inline bool need_mlock_drain(int cpu) { return false; } +static inline void mlock_drain_local(void) { } +static inline void mlock_drain_remote(int cpu) { } static inline void vunmap_range_noflush(unsigned long start, unsigned long end) { } diff --git a/mm/migrate.c b/mm/migrate.c index 98de7ce2b576..206fcdbe67f3 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -265,7 +265,7 @@ static bool remove_migration_pte(struct folio *folio, set_pte_at(vma->vm_mm, pvmw.address, pvmw.pte, pte); } if (vma->vm_flags & VM_LOCKED) - mlock_page_drain_local(); + mlock_drain_local(); trace_remove_migration_pte(pvmw.address, pte_val(pte), compound_order(new)); diff --git a/mm/mlock.c b/mm/mlock.c index f8e8d30ab08a..9e9c8be58277 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -210,7 +210,7 @@ static void mlock_folio_batch(struct folio_batch *fbatch) folio_batch_reinit(fbatch); } -void mlock_page_drain_local(void) +void mlock_drain_local(void) { struct folio_batch *fbatch; @@ -221,7 +221,7 @@ void mlock_page_drain_local(void) local_unlock(&mlock_fbatch.lock); } -void mlock_page_drain_remote(int cpu) +void mlock_drain_remote(int cpu) { struct folio_batch *fbatch; @@ -231,7 +231,7 @@ void mlock_page_drain_remote(int cpu) mlock_folio_batch(fbatch); } -bool need_mlock_page_drain(int cpu) +bool need_mlock_drain(int cpu) { return folio_batch_count(&per_cpu(mlock_fbatch.fbatch, cpu)); } @@ -262,13 +262,12 @@ void mlock_folio(struct folio *folio) } /** - * mlock_new_page - mlock a newly allocated page not yet on LRU - * @page: page to be mlocked, either a normal page or a THP head. + * mlock_new_folio - mlock a newly allocated folio not yet on LRU + * @folio: folio to be mlocked, either normal or a THP head. */ -void mlock_new_page(struct page *page) +void mlock_new_folio(struct folio *folio) { struct folio_batch *fbatch; - struct folio *folio = page_folio(page); int nr_pages = folio_nr_pages(folio); local_lock(&mlock_fbatch.lock); @@ -286,13 +285,12 @@ void mlock_new_page(struct page *page) } /** - * munlock_page - munlock a page - * @page: page to be munlocked, either a normal page or a THP head. + * munlock_folio - munlock a folio + * @folio: folio to be munlocked, either normal or a THP head. */ -void munlock_page(struct page *page) +void munlock_folio(struct folio *folio) { struct folio_batch *fbatch; - struct folio *folio = page_folio(page); local_lock(&mlock_fbatch.lock); fbatch = this_cpu_ptr(&mlock_fbatch.fbatch); @@ -314,7 +312,7 @@ static int mlock_pte_range(pmd_t *pmd, unsigned long addr, struct vm_area_struct *vma = walk->vma; spinlock_t *ptl; pte_t *start_pte, *pte; - struct page *page; + struct folio *folio; ptl = pmd_trans_huge_lock(pmd, vma); if (ptl) { @@ -322,11 +320,11 @@ static int mlock_pte_range(pmd_t *pmd, unsigned long addr, goto out; if (is_huge_zero_pmd(*pmd)) goto out; - page = pmd_page(*pmd); + folio = page_folio(pmd_page(*pmd)); if (vma->vm_flags & VM_LOCKED) - mlock_folio(page_folio(page)); + mlock_folio(folio); else - munlock_page(page); + munlock_folio(folio); goto out; } @@ -334,15 +332,15 @@ static int mlock_pte_range(pmd_t *pmd, unsigned long addr, for (pte = start_pte; addr != end; pte++, addr += PAGE_SIZE) { if (!pte_present(*pte)) continue; - page = vm_normal_page(vma, addr, *pte); - if (!page || is_zone_device_page(page)) + folio = vm_normal_folio(vma, addr, *pte); + if (!folio || folio_is_zone_device(folio)) continue; - if (PageTransCompound(page)) + if (folio_test_large(folio)) continue; if (vma->vm_flags & VM_LOCKED) - mlock_folio(page_folio(page)); + mlock_folio(folio); else - munlock_page(page); + munlock_folio(folio); } pte_unmap(start_pte); out: diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 88494e82843d..83be3b571fd0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8587,7 +8587,7 @@ static int page_alloc_cpu_dead(unsigned int cpu) struct zone *zone; lru_add_drain_cpu(cpu); - mlock_page_drain_remote(cpu); + mlock_drain_remote(cpu); drain_pages(cpu); /* diff --git a/mm/rmap.c b/mm/rmap.c index a079d9964b9c..073999f78adf 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1764,7 +1764,7 @@ discard: */ page_remove_rmap(subpage, vma, folio_test_hugetlb(folio)); if (vma->vm_flags & VM_LOCKED) - mlock_page_drain_local(); + mlock_drain_local(); folio_put(folio); } @@ -2105,7 +2105,7 @@ static bool try_to_migrate_one(struct folio *folio, struct vm_area_struct *vma, */ page_remove_rmap(subpage, vma, folio_test_hugetlb(folio)); if (vma->vm_flags & VM_LOCKED) - mlock_page_drain_local(); + mlock_drain_local(); folio_put(folio); } diff --git a/mm/swap.c b/mm/swap.c index e54e2a252e27..42d67f9baa8c 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -562,7 +562,7 @@ void folio_add_lru_vma(struct folio *folio, struct vm_area_struct *vma) VM_BUG_ON_FOLIO(folio_test_lru(folio), folio); if (unlikely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) == VM_LOCKED)) - mlock_new_page(&folio->page); + mlock_new_folio(folio); else folio_add_lru(folio); } @@ -781,7 +781,7 @@ void lru_add_drain(void) local_lock(&cpu_fbatches.lock); lru_add_drain_cpu(smp_processor_id()); local_unlock(&cpu_fbatches.lock); - mlock_page_drain_local(); + mlock_drain_local(); } /* @@ -796,7 +796,7 @@ static void lru_add_and_bh_lrus_drain(void) lru_add_drain_cpu(smp_processor_id()); local_unlock(&cpu_fbatches.lock); invalidate_bh_lrus_cpu(); - mlock_page_drain_local(); + mlock_drain_local(); } void lru_add_drain_cpu_zone(struct zone *zone) @@ -805,7 +805,7 @@ void lru_add_drain_cpu_zone(struct zone *zone) lru_add_drain_cpu(smp_processor_id()); drain_local_pages(zone); local_unlock(&cpu_fbatches.lock); - mlock_page_drain_local(); + mlock_drain_local(); } #ifdef CONFIG_SMP @@ -828,7 +828,7 @@ static bool cpu_needs_drain(unsigned int cpu) folio_batch_count(&fbatches->lru_deactivate) || folio_batch_count(&fbatches->lru_lazyfree) || folio_batch_count(&fbatches->activate) || - need_mlock_page_drain(cpu) || + need_mlock_drain(cpu) || has_bh_in_lru(cpu, NULL); } -- cgit v1.2.3 From 7efecffb8e7968c4a6c53177b0053ca4765fe233 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Mon, 16 Jan 2023 19:28:25 +0000 Subject: mm: remove mlock_vma_page() All callers now have a folio and can call mlock_vma_folio(). Update the documentation to refer to mlock_vma_folio(). Link: https://lkml.kernel.org/r/20230116192827.2146732-3-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- Documentation/mm/unevictable-lru.rst | 6 +++--- mm/internal.h | 10 +--------- mm/mlock.c | 4 ++-- mm/rmap.c | 4 ++-- 4 files changed, 8 insertions(+), 16 deletions(-) (limited to 'mm/mlock.c') diff --git a/Documentation/mm/unevictable-lru.rst b/Documentation/mm/unevictable-lru.rst index 552c63eef954..9257235fe904 100644 --- a/Documentation/mm/unevictable-lru.rst +++ b/Documentation/mm/unevictable-lru.rst @@ -311,7 +311,7 @@ do end up getting faulted into this VM_LOCKED VMA, they will be handled in the fault path - which is also how mlock2()'s MLOCK_ONFAULT areas are handled. For each PTE (or PMD) being faulted into a VMA, the page add rmap function -calls mlock_vma_page(), which calls mlock_folio() when the VMA is VM_LOCKED +calls mlock_vma_folio(), which calls mlock_folio() when the VMA is VM_LOCKED (unless it is a PTE mapping of a part of a transparent huge page). Or when it is a newly allocated anonymous page, folio_add_lru_vma() calls mlock_new_folio() instead: similar to mlock_folio(), but can make better @@ -413,7 +413,7 @@ However, since mlock_vma_pages_range() starts by setting VM_LOCKED on a VMA, before mlocking any pages already present, if one of those pages were migrated before mlock_pte_range() reached it, it would get counted twice in mlock_count. To prevent that, mlock_vma_pages_range() temporarily marks the VMA as VM_IO, -so that mlock_vma_page() will skip it. +so that mlock_vma_folio() will skip it. To complete page migration, we place the old and new pages back onto the LRU afterwards. The "unneeded" page - old page on success, new page on failure - @@ -552,6 +552,6 @@ and node unevictable list. rmap's folio_referenced_one(), called via vmscan's shrink_active_list() or shrink_page_list(), and rmap's try_to_unmap_one() called via shrink_page_list(), -check for (3) pages still mapped into VM_LOCKED VMAs, and call mlock_vma_page() +check for (3) pages still mapped into VM_LOCKED VMAs, and call mlock_vma_folio() to correct them. Such pages are culled to the unevictable list when released by the shrinker. diff --git a/mm/internal.h b/mm/internal.h index 74bc1fe45711..0b74105ea363 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -518,7 +518,7 @@ extern long faultin_vma_page_range(struct vm_area_struct *vma, extern int mlock_future_check(struct mm_struct *mm, unsigned long flags, unsigned long len); /* - * mlock_vma_page() and munlock_vma_page(): + * mlock_vma_folio() and munlock_vma_folio(): * should be called with vma's mmap_lock held for read or write, * under page table lock for the pte/pmd being added or removed. * @@ -547,12 +547,6 @@ static inline void mlock_vma_folio(struct folio *folio, mlock_folio(folio); } -static inline void mlock_vma_page(struct page *page, - struct vm_area_struct *vma, bool compound) -{ - mlock_vma_folio(page_folio(page), vma, compound); -} - void munlock_folio(struct folio *folio); static inline void munlock_vma_folio(struct folio *folio, @@ -656,8 +650,6 @@ static inline struct file *maybe_unlock_mmap_for_io(struct vm_fault *vmf, } #else /* !CONFIG_MMU */ static inline void unmap_mapping_folio(struct folio *folio) { } -static inline void mlock_vma_page(struct page *page, - struct vm_area_struct *vma, bool compound) { } static inline void munlock_vma_page(struct page *page, struct vm_area_struct *vma, bool compound) { } static inline void mlock_new_folio(struct folio *folio) { } diff --git a/mm/mlock.c b/mm/mlock.c index 9e9c8be58277..b680f11879c3 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -370,9 +370,9 @@ static void mlock_vma_pages_range(struct vm_area_struct *vma, /* * There is a slight chance that concurrent page migration, * or page reclaim finding a page of this now-VM_LOCKED vma, - * will call mlock_vma_page() and raise page's mlock_count: + * will call mlock_vma_folio() and raise page's mlock_count: * double counting, leaving the page unevictable indefinitely. - * Communicate this danger to mlock_vma_page() with VM_IO, + * Communicate this danger to mlock_vma_folio() with VM_IO, * which is a VM_SPECIAL flag not allowed on VM_LOCKED vmas. * mmap_lock is held in write mode here, so this weird * combination should not be visible to other mmap_lock users; diff --git a/mm/rmap.c b/mm/rmap.c index 0d07c500fc86..33e15181ae73 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1260,7 +1260,7 @@ void page_add_anon_rmap(struct page *page, struct vm_area_struct *vma, __page_check_anon_rmap(page, vma, address); } - mlock_vma_page(page, vma, compound); + mlock_vma_folio(folio, vma, compound); } /** @@ -1351,7 +1351,7 @@ void page_add_file_rmap(struct page *page, struct vm_area_struct *vma, if (nr) __lruvec_stat_mod_folio(folio, NR_FILE_MAPPED, nr); - mlock_vma_page(page, vma, compound); + mlock_vma_folio(folio, vma, compound); } /** -- cgit v1.2.3 From 37598f5a9d8b63b91cce0cb6bac5f6374ed1bb80 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Fri, 20 Jan 2023 11:26:19 -0500 Subject: mlock: convert mlock to vma iterator Use the vma iterator so that the iterator can be invalidated or updated to avoid each caller doing so. Link: https://lkml.kernel.org/r/20230120162650.984577-19-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett Signed-off-by: Andrew Morton --- mm/mlock.c | 57 ++++++++++++++++++++++++++++----------------------------- 1 file changed, 28 insertions(+), 29 deletions(-) (limited to 'mm/mlock.c') diff --git a/mm/mlock.c b/mm/mlock.c index b680f11879c3..0d09b9070071 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -401,8 +401,9 @@ static void mlock_vma_pages_range(struct vm_area_struct *vma, * * For vmas that pass the filters, merge/split as appropriate. */ -static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev, - unsigned long start, unsigned long end, vm_flags_t newflags) +static int mlock_fixup(struct vma_iterator *vmi, struct vm_area_struct *vma, + struct vm_area_struct **prev, unsigned long start, + unsigned long end, vm_flags_t newflags) { struct mm_struct *mm = vma->vm_mm; pgoff_t pgoff; @@ -417,22 +418,22 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev, goto out; pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT); - *prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma, - vma->vm_file, pgoff, vma_policy(vma), - vma->vm_userfaultfd_ctx, anon_vma_name(vma)); + *prev = vmi_vma_merge(vmi, mm, *prev, start, end, newflags, + vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma), + vma->vm_userfaultfd_ctx, anon_vma_name(vma)); if (*prev) { vma = *prev; goto success; } if (start != vma->vm_start) { - ret = split_vma(mm, vma, start, 1); + ret = vmi_split_vma(vmi, mm, vma, start, 1); if (ret) goto out; } if (end != vma->vm_end) { - ret = split_vma(mm, vma, end, 0); + ret = vmi_split_vma(vmi, mm, vma, end, 0); if (ret) goto out; } @@ -471,7 +472,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len, unsigned long nstart, end, tmp; struct vm_area_struct *vma, *prev; int error; - MA_STATE(mas, ¤t->mm->mm_mt, start, start); + VMA_ITERATOR(vmi, current->mm, start); VM_BUG_ON(offset_in_page(start)); VM_BUG_ON(len != PAGE_ALIGN(len)); @@ -480,39 +481,37 @@ static int apply_vma_lock_flags(unsigned long start, size_t len, return -EINVAL; if (end == start) return 0; - vma = mas_walk(&mas); + vma = vma_iter_load(&vmi); if (!vma) return -ENOMEM; + prev = vma_prev(&vmi); if (start > vma->vm_start) prev = vma; - else - prev = mas_prev(&mas, 0); - for (nstart = start ; ; ) { - vm_flags_t newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK; + nstart = start; + tmp = vma->vm_start; + for_each_vma_range(vmi, vma, end) { + vm_flags_t newflags; - newflags |= flags; + if (vma->vm_start != tmp) + return -ENOMEM; + newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK; + newflags |= flags; /* Here we know that vma->vm_start <= nstart < vma->vm_end. */ tmp = vma->vm_end; if (tmp > end) tmp = end; - error = mlock_fixup(vma, &prev, nstart, tmp, newflags); + error = mlock_fixup(&vmi, vma, &prev, nstart, tmp, newflags); if (error) break; nstart = tmp; - if (nstart < prev->vm_end) - nstart = prev->vm_end; - if (nstart >= end) - break; - - vma = find_vma(prev->vm_mm, prev->vm_end); - if (!vma || vma->vm_start != nstart) { - error = -ENOMEM; - break; - } } + + if (vma_iter_end(&vmi) < end) + return -ENOMEM; + return error; } @@ -658,7 +657,7 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len) */ static int apply_mlockall_flags(int flags) { - MA_STATE(mas, ¤t->mm->mm_mt, 0, 0); + VMA_ITERATOR(vmi, current->mm, 0); struct vm_area_struct *vma, *prev = NULL; vm_flags_t to_add = 0; @@ -679,15 +678,15 @@ static int apply_mlockall_flags(int flags) to_add |= VM_LOCKONFAULT; } - mas_for_each(&mas, vma, ULONG_MAX) { + for_each_vma(vmi, vma) { vm_flags_t newflags; newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK; newflags |= to_add; /* Ignore errors */ - mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags); - mas_pause(&mas); + mlock_fixup(&vmi, vma, &prev, vma->vm_start, vma->vm_end, + newflags); cond_resched(); } out: -- cgit v1.2.3 From 9760ebffbf5507320e0de41f5b80089bdef996a0 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Fri, 20 Jan 2023 11:26:30 -0500 Subject: mm: switch vma_merge(), split_vma(), and __split_vma to vma iterator Drop the vmi_* functions and transition all users to use the vma iterator directly. Link: https://lkml.kernel.org/r/20230120162650.984577-30-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett Signed-off-by: Andrew Morton --- fs/userfaultfd.c | 14 +++++----- include/linux/mm.h | 18 ++++--------- mm/madvise.c | 6 ++--- mm/mempolicy.c | 6 ++--- mm/mlock.c | 6 ++--- mm/mmap.c | 79 +++++++++++++++--------------------------------------- mm/mprotect.c | 6 ++--- mm/mremap.c | 10 +++---- mm/nommu.c | 8 +++--- 9 files changed, 55 insertions(+), 98 deletions(-) (limited to 'mm/mlock.c') diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index 4334bd35984d..f3c75c6222de 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -909,7 +909,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file) continue; } new_flags = vma->vm_flags & ~__VM_UFFD_FLAGS; - prev = vmi_vma_merge(&vmi, mm, prev, vma->vm_start, vma->vm_end, + prev = vma_merge(&vmi, mm, prev, vma->vm_start, vma->vm_end, new_flags, vma->anon_vma, vma->vm_file, vma->vm_pgoff, vma_policy(vma), @@ -1452,7 +1452,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx, vma_end = min(end, vma->vm_end); new_flags = (vma->vm_flags & ~__VM_UFFD_FLAGS) | vm_flags; - prev = vmi_vma_merge(&vmi, mm, prev, start, vma_end, new_flags, + prev = vma_merge(&vmi, mm, prev, start, vma_end, new_flags, vma->anon_vma, vma->vm_file, vma->vm_pgoff, vma_policy(vma), ((struct vm_userfaultfd_ctx){ ctx }), @@ -1463,12 +1463,12 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx, goto next; } if (vma->vm_start < start) { - ret = vmi_split_vma(&vmi, mm, vma, start, 1); + ret = split_vma(&vmi, vma, start, 1); if (ret) break; } if (vma->vm_end > end) { - ret = vmi_split_vma(&vmi, mm, vma, end, 0); + ret = split_vma(&vmi, vma, end, 0); if (ret) break; } @@ -1632,7 +1632,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx, uffd_wp_range(mm, vma, start, vma_end - start, false); new_flags = vma->vm_flags & ~__VM_UFFD_FLAGS; - prev = vmi_vma_merge(&vmi, mm, prev, start, vma_end, new_flags, + prev = vma_merge(&vmi, mm, prev, start, vma_end, new_flags, vma->anon_vma, vma->vm_file, vma->vm_pgoff, vma_policy(vma), NULL_VM_UFFD_CTX, anon_vma_name(vma)); @@ -1641,12 +1641,12 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx, goto next; } if (vma->vm_start < start) { - ret = vmi_split_vma(&vmi, mm, vma, start, 1); + ret = split_vma(&vmi, vma, start, 1); if (ret) break; } if (vma->vm_end > end) { - ret = vmi_split_vma(&vmi, mm, vma, end, 0); + ret = split_vma(&vmi, vma, end, 0); if (ret) break; } diff --git a/include/linux/mm.h b/include/linux/mm.h index 144ddfd65992..f3b49feb5c35 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2839,24 +2839,16 @@ static inline int vma_adjust(struct vm_area_struct *vma, unsigned long start, { return __vma_adjust(vma, start, end, pgoff, insert, NULL); } -extern struct vm_area_struct *vma_merge(struct mm_struct *, - struct vm_area_struct *prev, unsigned long addr, unsigned long end, - unsigned long vm_flags, struct anon_vma *, struct file *, pgoff_t, - struct mempolicy *, struct vm_userfaultfd_ctx, struct anon_vma_name *); -extern struct vm_area_struct *vmi_vma_merge(struct vma_iterator *vmi, +extern struct vm_area_struct *vma_merge(struct vma_iterator *vmi, struct mm_struct *, struct vm_area_struct *prev, unsigned long addr, unsigned long end, unsigned long vm_flags, struct anon_vma *, struct file *, pgoff_t, struct mempolicy *, struct vm_userfaultfd_ctx, struct anon_vma_name *); extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *); -extern int __split_vma(struct mm_struct *, struct vm_area_struct *, - unsigned long addr, int new_below); -extern int vmi__split_vma(struct vma_iterator *vmi, struct mm_struct *, - struct vm_area_struct *, unsigned long addr, int new_below); -extern int split_vma(struct mm_struct *, struct vm_area_struct *, - unsigned long addr, int new_below); -extern int vmi_split_vma(struct vma_iterator *vmi, struct mm_struct *, - struct vm_area_struct *, unsigned long addr, int new_below); +extern int __split_vma(struct vma_iterator *vmi, struct vm_area_struct *, + unsigned long addr, int new_below); +extern int split_vma(struct vma_iterator *vmi, struct vm_area_struct *, + unsigned long addr, int new_below); extern int insert_vm_struct(struct mm_struct *, struct vm_area_struct *); extern void unlink_file_vma(struct vm_area_struct *); extern struct vm_area_struct *copy_vma(struct vm_area_struct **, diff --git a/mm/madvise.c b/mm/madvise.c index 4d4471916465..02b317726c9a 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -150,7 +150,7 @@ static int madvise_update_vma(struct vm_area_struct *vma, } pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT); - *prev = vmi_vma_merge(&vmi, mm, *prev, start, end, new_flags, + *prev = vma_merge(&vmi, mm, *prev, start, end, new_flags, vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma), vma->vm_userfaultfd_ctx, anon_name); if (*prev) { @@ -163,7 +163,7 @@ static int madvise_update_vma(struct vm_area_struct *vma, if (start != vma->vm_start) { if (unlikely(mm->map_count >= sysctl_max_map_count)) return -ENOMEM; - error = vmi__split_vma(&vmi, mm, vma, start, 1); + error = __split_vma(&vmi, vma, start, 1); if (error) return error; } @@ -171,7 +171,7 @@ static int madvise_update_vma(struct vm_area_struct *vma, if (end != vma->vm_end) { if (unlikely(mm->map_count >= sysctl_max_map_count)) return -ENOMEM; - error = vmi__split_vma(&vmi, mm, vma, end, 0); + error = __split_vma(&vmi, vma, end, 0); if (error) return error; } diff --git a/mm/mempolicy.c b/mm/mempolicy.c index ed68bdf980d3..dd5ca942256f 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -810,7 +810,7 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, pgoff = vma->vm_pgoff + ((vmstart - vma->vm_start) >> PAGE_SHIFT); - prev = vmi_vma_merge(&vmi, mm, prev, vmstart, vmend, vma->vm_flags, + prev = vma_merge(&vmi, mm, prev, vmstart, vmend, vma->vm_flags, vma->anon_vma, vma->vm_file, pgoff, new_pol, vma->vm_userfaultfd_ctx, anon_vma_name(vma)); @@ -819,12 +819,12 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, goto replace; } if (vma->vm_start != vmstart) { - err = vmi_split_vma(&vmi, vma->vm_mm, vma, vmstart, 1); + err = split_vma(&vmi, vma, vmstart, 1); if (err) goto out; } if (vma->vm_end != vmend) { - err = vmi_split_vma(&vmi, vma->vm_mm, vma, vmend, 0); + err = split_vma(&vmi, vma, vmend, 0); if (err) goto out; } diff --git a/mm/mlock.c b/mm/mlock.c index 0d09b9070071..0336f52e03d7 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -418,7 +418,7 @@ static int mlock_fixup(struct vma_iterator *vmi, struct vm_area_struct *vma, goto out; pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT); - *prev = vmi_vma_merge(vmi, mm, *prev, start, end, newflags, + *prev = vma_merge(vmi, mm, *prev, start, end, newflags, vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma), vma->vm_userfaultfd_ctx, anon_vma_name(vma)); if (*prev) { @@ -427,13 +427,13 @@ static int mlock_fixup(struct vma_iterator *vmi, struct vm_area_struct *vma, } if (start != vma->vm_start) { - ret = vmi_split_vma(vmi, mm, vma, start, 1); + ret = split_vma(vmi, vma, start, 1); if (ret) goto out; } if (end != vma->vm_end) { - ret = vmi_split_vma(vmi, mm, vma, end, 0); + ret = split_vma(vmi, vma, end, 0); if (ret) goto out; } diff --git a/mm/mmap.c b/mm/mmap.c index 8806bfbaa505..afc65f122f7d 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1010,7 +1010,7 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, * parameter) may establish ptes with the wrong permissions of NNNN * instead of the right permissions of XXXX. */ -struct vm_area_struct *vma_merge(struct mm_struct *mm, +struct vm_area_struct *vma_merge(struct vma_iterator *vmi, struct mm_struct *mm, struct vm_area_struct *prev, unsigned long addr, unsigned long end, unsigned long vm_flags, struct anon_vma *anon_vma, struct file *file, @@ -1019,7 +1019,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, struct anon_vma_name *anon_name) { pgoff_t pglen = (end - addr) >> PAGE_SHIFT; - struct vm_area_struct *mid, *next, *res; + struct vm_area_struct *mid, *next, *res = NULL; int err = -1; bool merge_prev = false; bool merge_next = false; @@ -1085,26 +1085,11 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm, if (err) return NULL; khugepaged_enter_vma(res, vm_flags); - return res; -} -struct vm_area_struct *vmi_vma_merge(struct vma_iterator *vmi, - struct mm_struct *mm, - struct vm_area_struct *prev, unsigned long addr, - unsigned long end, unsigned long vm_flags, - struct anon_vma *anon_vma, struct file *file, - pgoff_t pgoff, struct mempolicy *policy, - struct vm_userfaultfd_ctx vm_userfaultfd_ctx, - struct anon_vma_name *anon_name) -{ - struct vm_area_struct *tmp; - - tmp = vma_merge(mm, prev, addr, end, vm_flags, anon_vma, file, pgoff, - policy, vm_userfaultfd_ctx, anon_name); - if (tmp) + if (res) vma_iter_set(vmi, end); - return tmp; + return res; } /* @@ -2228,12 +2213,14 @@ static void unmap_region(struct mm_struct *mm, struct maple_tree *mt, * __split_vma() bypasses sysctl_max_map_count checking. We use this where it * has already been checked or doesn't make sense to fail. */ -int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma, +int __split_vma(struct vma_iterator *vmi, struct vm_area_struct *vma, unsigned long addr, int new_below) { struct vm_area_struct *new; int err; - validate_mm_mt(mm); + unsigned long end = vma->vm_end; + + validate_mm_mt(vma->vm_mm); if (vma->vm_ops && vma->vm_ops->may_split) { err = vma->vm_ops->may_split(vma, addr); @@ -2273,8 +2260,10 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma, err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new); /* Success. */ - if (!err) + if (!err) { + vma_iter_set(vmi, end); return 0; + } /* Avoid vm accounting in close() operation */ new->vm_start = new->vm_end; @@ -2289,46 +2278,21 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma, mpol_put(vma_policy(new)); out_free_vma: vm_area_free(new); - validate_mm_mt(mm); + validate_mm_mt(vma->vm_mm); return err; } -int vmi__split_vma(struct vma_iterator *vmi, struct mm_struct *mm, - struct vm_area_struct *vma, unsigned long addr, int new_below) -{ - int ret; - unsigned long end = vma->vm_end; - - ret = __split_vma(mm, vma, addr, new_below); - if (!ret) - vma_iter_set(vmi, end); - - return ret; -} /* * Split a vma into two pieces at address 'addr', a new vma is allocated * either for the first part or the tail. */ -int split_vma(struct mm_struct *mm, struct vm_area_struct *vma, +int split_vma(struct vma_iterator *vmi, struct vm_area_struct *vma, unsigned long addr, int new_below) { - if (mm->map_count >= sysctl_max_map_count) + if (vma->vm_mm->map_count >= sysctl_max_map_count) return -ENOMEM; - return __split_vma(mm, vma, addr, new_below); -} - -int vmi_split_vma(struct vma_iterator *vmi, struct mm_struct *mm, - struct vm_area_struct *vma, unsigned long addr, int new_below) -{ - int ret; - unsigned long end = vma->vm_end; - - ret = split_vma(mm, vma, addr, new_below); - if (!ret) - vma_iter_set(vmi, end); - - return ret; + return __split_vma(vmi, vma, addr, new_below); } static inline int munmap_sidetree(struct vm_area_struct *vma, @@ -2388,7 +2352,7 @@ do_vmi_align_munmap(struct vma_iterator *vmi, struct vm_area_struct *vma, if (end < vma->vm_end && mm->map_count >= sysctl_max_map_count) goto map_count_exceeded; - error = vmi__split_vma(vmi, mm, vma, start, 0); + error = __split_vma(vmi, vma, start, 0); if (error) goto start_split_failed; @@ -2409,7 +2373,7 @@ do_vmi_align_munmap(struct vma_iterator *vmi, struct vm_area_struct *vma, if (next->vm_end > end) { struct vm_area_struct *split; - error = vmi__split_vma(vmi, mm, next, end, 1); + error = __split_vma(vmi, next, end, 1); if (error) goto end_split_failed; @@ -2690,9 +2654,10 @@ cannot_expand: * vma again as we may succeed this time. */ if (unlikely(vm_flags != vma->vm_flags && prev)) { - merge = vmi_vma_merge(&vmi, mm, prev, vma->vm_start, - vma->vm_end, vma->vm_flags, NULL, vma->vm_file, - vma->vm_pgoff, NULL, NULL_VM_UFFD_CTX, NULL); + merge = vma_merge(&vmi, mm, prev, vma->vm_start, + vma->vm_end, vma->vm_flags, NULL, + vma->vm_file, vma->vm_pgoff, NULL, + NULL_VM_UFFD_CTX, NULL); if (merge) { /* * ->mmap() can change vma->vm_file and fput @@ -3249,7 +3214,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, if (new_vma && new_vma->vm_start < addr + len) return NULL; /* should never get here */ - new_vma = vmi_vma_merge(&vmi, mm, prev, addr, addr + len, vma->vm_flags, + new_vma = vma_merge(&vmi, mm, prev, addr, addr + len, vma->vm_flags, vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma), vma->vm_userfaultfd_ctx, anon_vma_name(vma)); if (new_vma) { diff --git a/mm/mprotect.c b/mm/mprotect.c index 39b6335b8813..cce6a0e58fb5 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -642,7 +642,7 @@ mprotect_fixup(struct vma_iterator *vmi, struct mmu_gather *tlb, * First try to merge with previous and/or next vma. */ pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT); - *pprev = vmi_vma_merge(vmi, mm, *pprev, start, end, newflags, + *pprev = vma_merge(vmi, mm, *pprev, start, end, newflags, vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma), vma->vm_userfaultfd_ctx, anon_vma_name(vma)); if (*pprev) { @@ -654,13 +654,13 @@ mprotect_fixup(struct vma_iterator *vmi, struct mmu_gather *tlb, *pprev = vma; if (start != vma->vm_start) { - error = vmi_split_vma(vmi, mm, vma, start, 1); + error = split_vma(vmi, vma, start, 1); if (error) goto fail; } if (end != vma->vm_end) { - error = vmi_split_vma(vmi, mm, vma, end, 0); + error = split_vma(vmi, vma, end, 0); if (error) goto fail; } diff --git a/mm/mremap.c b/mm/mremap.c index f161516ab3c1..71ba8eddd836 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -1043,12 +1043,10 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len, * when a vma would be actually removed due to a merge. */ if (!vma->vm_ops || !vma->vm_ops->close) { - vma = vmi_vma_merge(&vmi, mm, vma, - extension_start, extension_end, - vma->vm_flags, vma->anon_vma, - vma->vm_file, extension_pgoff, - vma_policy(vma), vma->vm_userfaultfd_ctx, - anon_vma_name(vma)); + vma = vma_merge(&vmi, mm, vma, extension_start, + extension_end, vma->vm_flags, vma->anon_vma, + vma->vm_file, extension_pgoff, vma_policy(vma), + vma->vm_userfaultfd_ctx, anon_vma_name(vma)); } else if (vma_adjust(vma, vma->vm_start, addr + new_len, vma->vm_pgoff, NULL)) { vma = NULL; diff --git a/mm/nommu.c b/mm/nommu.c index 9ddeb92600d6..9a166738909e 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1297,18 +1297,20 @@ SYSCALL_DEFINE1(old_mmap, struct mmap_arg_struct __user *, arg) * split a vma into two pieces at address 'addr', a new vma is allocated either * for the first part or the tail. */ -int vmi_split_vma(struct vma_iterator *vmi, struct mm_struct *mm, - struct vm_area_struct *vma, unsigned long addr, int new_below) +int split_vma(struct vma_iterator *vmi, struct vm_area_struct *vma, + unsigned long addr, int new_below) { struct vm_area_struct *new; struct vm_region *region; unsigned long npages; + struct mm_struct *mm; /* we're only permitted to split anonymous regions (these should have * only a single usage on the region) */ if (vma->vm_file) return -ENOMEM; + mm = vma->vm_mm; if (mm->map_count >= sysctl_max_map_count) return -ENOMEM; @@ -1465,7 +1467,7 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len, struct list if (end != vma->vm_end && offset_in_page(end)) return -EINVAL; if (start != vma->vm_start && end != vma->vm_end) { - ret = vmi_split_vma(&vmi, mm, vma, start, 1); + ret = split_vma(&vmi, vma, start, 1); if (ret < 0) return ret; } -- cgit v1.2.3 From e430a95a04efc557bc4ff9b3035c7c85aee5d63f Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Thu, 26 Jan 2023 11:37:48 -0800 Subject: mm: replace VM_LOCKED_CLEAR_MASK with VM_LOCKED_MASK To simplify the usage of VM_LOCKED_CLEAR_MASK in vm_flags_clear(), replace it with VM_LOCKED_MASK bitmask and convert all users. Link: https://lkml.kernel.org/r/20230126193752.297968-4-surenb@google.com Signed-off-by: Suren Baghdasaryan Acked-by: Michal Hocko Acked-by: Mel Gorman Acked-by: Mike Rapoport (IBM) Reviewed-by: Davidlohr Bueso Cc: Andy Lutomirski Cc: Arjun Roy Cc: Axel Rasmussen Cc: David Hildenbrand Cc: David Howells Cc: David Rientjes Cc: Eric Dumazet Cc: Greg Thelen Cc: Hugh Dickins Cc: Ingo Molnar Cc: Jann Horn Cc: Joel Fernandes Cc: Johannes Weiner Cc: Kent Overstreet Cc: Laurent Dufour Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Matthew Wilcox Cc: Minchan Kim Cc: Paul E. McKenney Cc: Peter Oskolkov Cc: Peter Xu Cc: Peter Zijlstra Cc: Punit Agrawal Cc: Sebastian Andrzej Siewior Cc: Sebastian Reichel Cc: Shakeel Butt Cc: Soheil Hassas Yeganeh Cc: Song Liu Cc: Vlastimil Babka Cc: Will Deacon Signed-off-by: Andrew Morton --- include/linux/mm.h | 4 ++-- kernel/fork.c | 2 +- mm/hugetlb.c | 4 ++-- mm/mlock.c | 6 +++--- mm/mmap.c | 6 +++--- mm/mremap.c | 2 +- 6 files changed, 12 insertions(+), 12 deletions(-) (limited to 'mm/mlock.c') diff --git a/include/linux/mm.h b/include/linux/mm.h index e2df5d122b67..663726ca2240 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -421,8 +421,8 @@ extern unsigned int kobjsize(const void *objp); /* This mask defines which mm->def_flags a process can inherit its parent */ #define VM_INIT_DEF_MASK VM_NOHUGEPAGE -/* This mask is used to clear all the VMA flags used by mlock */ -#define VM_LOCKED_CLEAR_MASK (~(VM_LOCKED | VM_LOCKONFAULT)) +/* This mask represents all the VMA flag bits used by mlock */ +#define VM_LOCKED_MASK (VM_LOCKED | VM_LOCKONFAULT) /* Arch-specific flags to clear when updating VM flags on protection change */ #ifndef VM_ARCH_CLEAR diff --git a/kernel/fork.c b/kernel/fork.c index 9260f975b8f4..5e3029ea8e1e 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -659,7 +659,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm, tmp->anon_vma = NULL; } else if (anon_vma_fork(tmp, mpnt)) goto fail_nomem_anon_vma_fork; - tmp->vm_flags &= ~(VM_LOCKED | VM_LOCKONFAULT); + vm_flags_clear(tmp, VM_LOCKED_MASK); file = tmp->vm_file; if (file) { struct address_space *mapping = file->f_mapping; diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0f9df0143772..ab35b1cc9927 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6969,8 +6969,8 @@ static unsigned long page_table_shareable(struct vm_area_struct *svma, unsigned long s_end = sbase + PUD_SIZE; /* Allow segments to share if only one is marked locked */ - unsigned long vm_flags = vma->vm_flags & VM_LOCKED_CLEAR_MASK; - unsigned long svm_flags = svma->vm_flags & VM_LOCKED_CLEAR_MASK; + unsigned long vm_flags = vma->vm_flags & ~VM_LOCKED_MASK; + unsigned long svm_flags = svma->vm_flags & ~VM_LOCKED_MASK; /* * match the virtual addresses, permission and the alignment of the diff --git a/mm/mlock.c b/mm/mlock.c index 0336f52e03d7..5c4fff93cd6b 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -497,7 +497,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len, if (vma->vm_start != tmp) return -ENOMEM; - newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK; + newflags = vma->vm_flags & ~VM_LOCKED_MASK; newflags |= flags; /* Here we know that vma->vm_start <= nstart < vma->vm_end. */ tmp = vma->vm_end; @@ -661,7 +661,7 @@ static int apply_mlockall_flags(int flags) struct vm_area_struct *vma, *prev = NULL; vm_flags_t to_add = 0; - current->mm->def_flags &= VM_LOCKED_CLEAR_MASK; + current->mm->def_flags &= ~VM_LOCKED_MASK; if (flags & MCL_FUTURE) { current->mm->def_flags |= VM_LOCKED; @@ -681,7 +681,7 @@ static int apply_mlockall_flags(int flags) for_each_vma(vmi, vma) { vm_flags_t newflags; - newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK; + newflags = vma->vm_flags & ~VM_LOCKED_MASK; newflags |= to_add; /* Ignore errors */ diff --git a/mm/mmap.c b/mm/mmap.c index b698a96d0511..03d7c37c5969 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2668,7 +2668,7 @@ expanded: if ((vm_flags & VM_SPECIAL) || vma_is_dax(vma) || is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm)) - vma->vm_flags &= VM_LOCKED_CLEAR_MASK; + vm_flags_clear(vma, VM_LOCKED_MASK); else mm->locked_vm += (len >> PAGE_SHIFT); } @@ -3338,8 +3338,8 @@ static struct vm_area_struct *__install_special_mapping( vma->vm_start = addr; vma->vm_end = addr + len; - vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND | VM_SOFTDIRTY; - vma->vm_flags &= VM_LOCKED_CLEAR_MASK; + vm_flags_init(vma, (vm_flags | mm->def_flags | + VM_DONTEXPAND | VM_SOFTDIRTY) & ~VM_LOCKED_MASK); vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); vma->vm_ops = ops; diff --git a/mm/mremap.c b/mm/mremap.c index 5c9a57909862..d70d8063c6e2 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -687,7 +687,7 @@ static unsigned long move_vma(struct vm_area_struct *vma, if (unlikely(!err && (flags & MREMAP_DONTUNMAP))) { /* We always clear VM_LOCKED[ONFAULT] on the old vma */ - vma->vm_flags &= VM_LOCKED_CLEAR_MASK; + vm_flags_clear(vma, VM_LOCKED_MASK); /* * anon_vma links of the old vma is no longer needed after its page -- cgit v1.2.3 From 1c71222e5f2393b5ea1a41795c67589eea7e3490 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Thu, 26 Jan 2023 11:37:49 -0800 Subject: mm: replace vma->vm_flags direct modifications with modifier calls Replace direct modifications to vma->vm_flags with calls to modifier functions to be able to track flag changes and to keep vma locking correctness. [akpm@linux-foundation.org: fix drivers/misc/open-dice.c, per Hyeonggon Yoo] Link: https://lkml.kernel.org/r/20230126193752.297968-5-surenb@google.com Signed-off-by: Suren Baghdasaryan Acked-by: Michal Hocko Acked-by: Mel Gorman Acked-by: Mike Rapoport (IBM) Acked-by: Sebastian Reichel Reviewed-by: Liam R. Howlett Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Andy Lutomirski Cc: Arjun Roy Cc: Axel Rasmussen Cc: David Hildenbrand Cc: David Howells Cc: Davidlohr Bueso Cc: David Rientjes Cc: Eric Dumazet Cc: Greg Thelen Cc: Hugh Dickins Cc: Ingo Molnar Cc: Jann Horn Cc: Joel Fernandes Cc: Johannes Weiner Cc: Kent Overstreet Cc: Laurent Dufour Cc: Lorenzo Stoakes Cc: Matthew Wilcox Cc: Minchan Kim Cc: Paul E. McKenney Cc: Peter Oskolkov Cc: Peter Xu Cc: Peter Zijlstra Cc: Punit Agrawal Cc: Sebastian Andrzej Siewior Cc: Shakeel Butt Cc: Soheil Hassas Yeganeh Cc: Song Liu Cc: Vlastimil Babka Cc: Will Deacon Signed-off-by: Andrew Morton --- arch/arm/kernel/process.c | 2 +- arch/ia64/mm/init.c | 8 ++++---- arch/loongarch/include/asm/tlb.h | 2 +- arch/powerpc/kvm/book3s_xive_native.c | 2 +- arch/powerpc/mm/book3s64/subpage_prot.c | 2 +- arch/powerpc/platforms/book3s/vas-api.c | 2 +- arch/powerpc/platforms/cell/spufs/file.c | 14 +++++++------- arch/s390/mm/gmap.c | 3 +-- arch/x86/entry/vsyscall/vsyscall_64.c | 2 +- arch/x86/kernel/cpu/sgx/driver.c | 2 +- arch/x86/kernel/cpu/sgx/virt.c | 2 +- arch/x86/mm/pat/memtype.c | 6 +++--- arch/x86/um/mem_32.c | 2 +- drivers/acpi/pfr_telemetry.c | 2 +- drivers/android/binder.c | 3 +-- drivers/char/mspec.c | 2 +- drivers/crypto/hisilicon/qm.c | 2 +- drivers/dax/device.c | 2 +- drivers/dma/idxd/cdev.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 4 ++-- drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 4 ++-- drivers/gpu/drm/amd/amdkfd/kfd_events.c | 4 ++-- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 ++-- drivers/gpu/drm/drm_gem.c | 2 +- drivers/gpu/drm/drm_gem_dma_helper.c | 3 +-- drivers/gpu/drm/drm_gem_shmem_helper.c | 2 +- drivers/gpu/drm/drm_vm.c | 8 ++++---- drivers/gpu/drm/etnaviv/etnaviv_gem.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_gem.c | 4 ++-- drivers/gpu/drm/gma500/framebuffer.c | 2 +- drivers/gpu/drm/i810/i810_dma.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_mman.c | 4 ++-- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +- drivers/gpu/drm/msm/msm_gem.c | 2 +- drivers/gpu/drm/omapdrm/omap_gem.c | 3 +-- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 3 +-- drivers/gpu/drm/tegra/gem.c | 5 ++--- drivers/gpu/drm/ttm/ttm_bo_vm.c | 3 +-- drivers/gpu/drm/virtio/virtgpu_vram.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c | 2 +- drivers/gpu/drm/xen/xen_drm_front_gem.c | 3 +-- drivers/hsi/clients/cmt_speech.c | 2 +- drivers/hwtracing/intel_th/msu.c | 2 +- drivers/hwtracing/stm/core.c | 2 +- drivers/infiniband/hw/hfi1/file_ops.c | 4 ++-- drivers/infiniband/hw/mlx5/main.c | 4 ++-- drivers/infiniband/hw/qib/qib_file_ops.c | 13 ++++++------- drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 2 +- drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c | 2 +- drivers/media/common/videobuf2/videobuf2-dma-contig.c | 2 +- drivers/media/common/videobuf2/videobuf2-vmalloc.c | 2 +- drivers/media/v4l2-core/videobuf-dma-contig.c | 2 +- drivers/media/v4l2-core/videobuf-dma-sg.c | 4 ++-- drivers/media/v4l2-core/videobuf-vmalloc.c | 2 +- drivers/misc/cxl/context.c | 2 +- drivers/misc/habanalabs/common/memory.c | 2 +- drivers/misc/habanalabs/gaudi/gaudi.c | 4 ++-- drivers/misc/habanalabs/gaudi2/gaudi2.c | 8 ++++---- drivers/misc/habanalabs/goya/goya.c | 4 ++-- drivers/misc/ocxl/context.c | 4 ++-- drivers/misc/ocxl/sysfs.c | 2 +- drivers/misc/open-dice.c | 4 ++-- drivers/misc/sgi-gru/grufile.c | 4 ++-- drivers/misc/uacce/uacce.c | 2 +- drivers/sbus/char/oradax.c | 2 +- drivers/scsi/cxlflash/ocxl_hw.c | 2 +- drivers/scsi/sg.c | 2 +- drivers/staging/media/atomisp/pci/hmm/hmm_bo.c | 2 +- drivers/staging/media/deprecated/meye/meye.c | 4 ++-- drivers/staging/media/deprecated/stkwebcam/stk-webcam.c | 2 +- drivers/target/target_core_user.c | 2 +- drivers/uio/uio.c | 2 +- drivers/usb/core/devio.c | 3 +-- drivers/usb/mon/mon_bin.c | 3 +-- drivers/vdpa/vdpa_user/iova_domain.c | 2 +- drivers/vfio/pci/vfio_pci_core.c | 2 +- drivers/vhost/vdpa.c | 2 +- drivers/video/fbdev/68328fb.c | 2 +- drivers/video/fbdev/core/fb_defio.c | 4 ++-- drivers/xen/gntalloc.c | 2 +- drivers/xen/gntdev.c | 4 ++-- drivers/xen/privcmd-buf.c | 2 +- drivers/xen/privcmd.c | 4 ++-- fs/aio.c | 2 +- fs/cramfs/inode.c | 2 +- fs/erofs/data.c | 2 +- fs/exec.c | 4 ++-- fs/ext4/file.c | 2 +- fs/fuse/dax.c | 2 +- fs/hugetlbfs/inode.c | 4 ++-- fs/orangefs/file.c | 3 +-- fs/proc/task_mmu.c | 2 +- fs/proc/vmcore.c | 3 +-- fs/userfaultfd.c | 2 +- fs/xfs/xfs_file.c | 2 +- include/linux/mm.h | 2 +- kernel/bpf/ringbuf.c | 4 ++-- kernel/bpf/syscall.c | 4 ++-- kernel/events/core.c | 2 +- kernel/kcov.c | 2 +- kernel/relay.c | 2 +- mm/madvise.c | 2 +- mm/memory.c | 6 +++--- mm/mlock.c | 6 +++--- mm/mmap.c | 10 +++++----- mm/mprotect.c | 2 +- mm/mremap.c | 6 +++--- mm/nommu.c | 11 ++++++----- mm/secretmem.c | 2 +- mm/shmem.c | 2 +- mm/vmalloc.c | 2 +- net/ipv4/tcp.c | 4 ++-- security/selinux/selinuxfs.c | 6 +++--- sound/core/oss/pcm_oss.c | 2 +- sound/core/pcm_native.c | 9 +++++---- sound/soc/pxa/mmp-sspa.c | 2 +- sound/usb/usx2y/us122l.c | 4 ++-- sound/usb/usx2y/usX2Yhwdep.c | 2 +- sound/usb/usx2y/usx2yhwdeppcm.c | 2 +- 120 files changed, 188 insertions(+), 199 deletions(-) (limited to 'mm/mlock.c') diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index f811733a8fc5..61c30b9a24ea 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -316,7 +316,7 @@ static int __init gate_vma_init(void) gate_vma.vm_page_prot = PAGE_READONLY_EXEC; gate_vma.vm_start = 0xffff0000; gate_vma.vm_end = 0xffff0000 + PAGE_SIZE; - gate_vma.vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; + vm_flags_init(&gate_vma, VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC); return 0; } arch_initcall(gate_vma_init); diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index fc4e4217e87f..7f5353e28516 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -109,7 +109,7 @@ ia64_init_addr_space (void) vma_set_anonymous(vma); vma->vm_start = current->thread.rbs_bot & PAGE_MASK; vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT; + vm_flags_init(vma, VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT); vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); mmap_write_lock(current->mm); if (insert_vm_struct(current->mm, vma)) { @@ -127,8 +127,8 @@ ia64_init_addr_space (void) vma_set_anonymous(vma); vma->vm_end = PAGE_SIZE; vma->vm_page_prot = __pgprot(pgprot_val(PAGE_READONLY) | _PAGE_MA_NAT); - vma->vm_flags = VM_READ | VM_MAYREAD | VM_IO | - VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_init(vma, VM_READ | VM_MAYREAD | VM_IO | + VM_DONTEXPAND | VM_DONTDUMP); mmap_write_lock(current->mm); if (insert_vm_struct(current->mm, vma)) { mmap_write_unlock(current->mm); @@ -272,7 +272,7 @@ static int __init gate_vma_init(void) vma_init(&gate_vma, NULL); gate_vma.vm_start = FIXADDR_USER_START; gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; + vm_flags_init(&gate_vma, VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC); gate_vma.vm_page_prot = __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX); return 0; diff --git a/arch/loongarch/include/asm/tlb.h b/arch/loongarch/include/asm/tlb.h index dd24f5898f65..f5e4deb97402 100644 --- a/arch/loongarch/include/asm/tlb.h +++ b/arch/loongarch/include/asm/tlb.h @@ -149,7 +149,7 @@ static inline void tlb_flush(struct mmu_gather *tlb) struct vm_area_struct vma; vma.vm_mm = tlb->mm; - vma.vm_flags = 0; + vm_flags_init(&vma, 0); if (tlb->fullmm) { flush_tlb_mm(tlb->mm); return; diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c index 4f566bea5e10..712ab91ced39 100644 --- a/arch/powerpc/kvm/book3s_xive_native.c +++ b/arch/powerpc/kvm/book3s_xive_native.c @@ -324,7 +324,7 @@ static int kvmppc_xive_native_mmap(struct kvm_device *dev, return -EINVAL; } - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot); /* diff --git a/arch/powerpc/mm/book3s64/subpage_prot.c b/arch/powerpc/mm/book3s64/subpage_prot.c index d73b3b4176e8..b75a9fb99599 100644 --- a/arch/powerpc/mm/book3s64/subpage_prot.c +++ b/arch/powerpc/mm/book3s64/subpage_prot.c @@ -156,7 +156,7 @@ static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr, * VM_NOHUGEPAGE and split them. */ for_each_vma_range(vmi, vma, addr + len) { - vma->vm_flags |= VM_NOHUGEPAGE; + vm_flags_set(vma, VM_NOHUGEPAGE); walk_page_vma(vma, &subpage_walk_ops, NULL); } } diff --git a/arch/powerpc/platforms/book3s/vas-api.c b/arch/powerpc/platforms/book3s/vas-api.c index 9580e8e12165..36c21648d19a 100644 --- a/arch/powerpc/platforms/book3s/vas-api.c +++ b/arch/powerpc/platforms/book3s/vas-api.c @@ -525,7 +525,7 @@ static int coproc_mmap(struct file *fp, struct vm_area_struct *vma) pfn = paste_addr >> PAGE_SHIFT; /* flags, page_prot from cxl_mmap(), except we want cachable */ - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_cached(vma->vm_page_prot); prot = __pgprot(pgprot_val(vma->vm_page_prot) | _PAGE_DIRTY); diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 62d90a5e23d1..02a8158c469d 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -291,7 +291,7 @@ static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot); vma->vm_ops = &spufs_mem_mmap_vmops; @@ -381,7 +381,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_cntl_mmap_vmops; @@ -1043,7 +1043,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_signal1_mmap_vmops; @@ -1179,7 +1179,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_signal2_mmap_vmops; @@ -1302,7 +1302,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_mss_mmap_vmops; @@ -1364,7 +1364,7 @@ static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_psmap_mmap_vmops; @@ -1424,7 +1424,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_mfc_mmap_vmops; diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index 69af6cdf1a2a..ab836597419d 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -2522,8 +2522,7 @@ static inline void thp_split_mm(struct mm_struct *mm) VMA_ITERATOR(vmi, mm, 0); for_each_vma(vmi, vma) { - vma->vm_flags &= ~VM_HUGEPAGE; - vma->vm_flags |= VM_NOHUGEPAGE; + vm_flags_mod(vma, VM_NOHUGEPAGE, VM_HUGEPAGE); walk_page_vma(vma, &thp_split_walk_ops, NULL); } mm->def_flags |= VM_NOHUGEPAGE; diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c index 4af81df133ee..d234ca797e4a 100644 --- a/arch/x86/entry/vsyscall/vsyscall_64.c +++ b/arch/x86/entry/vsyscall/vsyscall_64.c @@ -391,7 +391,7 @@ void __init map_vsyscall(void) } if (vsyscall_mode == XONLY) - gate_vma.vm_flags = VM_EXEC; + vm_flags_init(&gate_vma, VM_EXEC); BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_PAGE) != (unsigned long)VSYSCALL_ADDR); diff --git a/arch/x86/kernel/cpu/sgx/driver.c b/arch/x86/kernel/cpu/sgx/driver.c index aa9b8b868867..262f5fb18d74 100644 --- a/arch/x86/kernel/cpu/sgx/driver.c +++ b/arch/x86/kernel/cpu/sgx/driver.c @@ -95,7 +95,7 @@ static int sgx_mmap(struct file *file, struct vm_area_struct *vma) return ret; vma->vm_ops = &sgx_vm_ops; - vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | VM_IO; + vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | VM_IO); vma->vm_private_data = encl; return 0; diff --git a/arch/x86/kernel/cpu/sgx/virt.c b/arch/x86/kernel/cpu/sgx/virt.c index 6a77a14eee38..c3e37eaec8ec 100644 --- a/arch/x86/kernel/cpu/sgx/virt.c +++ b/arch/x86/kernel/cpu/sgx/virt.c @@ -105,7 +105,7 @@ static int sgx_vepc_mmap(struct file *file, struct vm_area_struct *vma) vma->vm_ops = &sgx_vepc_vm_ops; /* Don't copy VMA in fork() */ - vma->vm_flags |= VM_PFNMAP | VM_IO | VM_DONTDUMP | VM_DONTCOPY; + vm_flags_set(vma, VM_PFNMAP | VM_IO | VM_DONTDUMP | VM_DONTCOPY); vma->vm_private_data = vepc; return 0; diff --git a/arch/x86/mm/pat/memtype.c b/arch/x86/mm/pat/memtype.c index fb4b1b5e0dea..6ca51b1aa5d9 100644 --- a/arch/x86/mm/pat/memtype.c +++ b/arch/x86/mm/pat/memtype.c @@ -1000,7 +1000,7 @@ int track_pfn_remap(struct vm_area_struct *vma, pgprot_t *prot, ret = reserve_pfn_range(paddr, size, prot, 0); if (ret == 0 && vma) - vma->vm_flags |= VM_PAT; + vm_flags_set(vma, VM_PAT); return ret; } @@ -1066,7 +1066,7 @@ void untrack_pfn(struct vm_area_struct *vma, unsigned long pfn, } free_pfn_range(paddr, size); if (vma) - vma->vm_flags &= ~VM_PAT; + vm_flags_clear(vma, VM_PAT); } /* @@ -1076,7 +1076,7 @@ void untrack_pfn(struct vm_area_struct *vma, unsigned long pfn, */ void untrack_pfn_moved(struct vm_area_struct *vma) { - vma->vm_flags &= ~VM_PAT; + vm_flags_clear(vma, VM_PAT); } pgprot_t pgprot_writecombine(pgprot_t prot) diff --git a/arch/x86/um/mem_32.c b/arch/x86/um/mem_32.c index cafd01f730da..29b2203bc82c 100644 --- a/arch/x86/um/mem_32.c +++ b/arch/x86/um/mem_32.c @@ -16,7 +16,7 @@ static int __init gate_vma_init(void) vma_init(&gate_vma, NULL); gate_vma.vm_start = FIXADDR_USER_START; gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; + vm_flags_init(&gate_vma, VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC); gate_vma.vm_page_prot = PAGE_READONLY; return 0; diff --git a/drivers/acpi/pfr_telemetry.c b/drivers/acpi/pfr_telemetry.c index 27fb6cdad75f..843f678ade0c 100644 --- a/drivers/acpi/pfr_telemetry.c +++ b/drivers/acpi/pfr_telemetry.c @@ -310,7 +310,7 @@ pfrt_log_mmap(struct file *file, struct vm_area_struct *vma) return -EROFS; /* changing from read to write with mprotect is not allowed */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); pfrt_log_dev = to_pfrt_log_dev(file); diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 880224ec6abb..cb08982b9666 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -5572,8 +5572,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma) proc->pid, vma->vm_start, vma->vm_end, "bad vm_flags", -EPERM); return -EPERM; } - vma->vm_flags |= VM_DONTCOPY | VM_MIXEDMAP; - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_mod(vma, VM_DONTCOPY | VM_MIXEDMAP, VM_MAYWRITE); vma->vm_ops = &binder_vm_ops; vma->vm_private_data = proc; diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c index f8231e2e84be..b35f651837c8 100644 --- a/drivers/char/mspec.c +++ b/drivers/char/mspec.c @@ -206,7 +206,7 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma, refcount_set(&vdata->refcnt, 1); vma->vm_private_data = vdata; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); if (vdata->type == MSPEC_UNCACHED) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &mspec_vm_ops; diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index 007ac7a69ce7..733fe1033910 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -2363,7 +2363,7 @@ static int hisi_qm_uacce_mmap(struct uacce_queue *q, return -EINVAL; } - vma->vm_flags |= VM_IO; + vm_flags_set(vma, VM_IO); return remap_pfn_range(vma, vma->vm_start, phys_base >> PAGE_SHIFT, diff --git a/drivers/dax/device.c b/drivers/dax/device.c index 5494d745ced5..223e4e233d19 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -308,7 +308,7 @@ static int dax_mmap(struct file *filp, struct vm_area_struct *vma) return rc; vma->vm_ops = &dax_vm_ops; - vma->vm_flags |= VM_HUGEPAGE; + vm_flags_set(vma, VM_HUGEPAGE); return 0; } diff --git a/drivers/dma/idxd/cdev.c b/drivers/dma/idxd/cdev.c index e13e92609943..674bfefca088 100644 --- a/drivers/dma/idxd/cdev.c +++ b/drivers/dma/idxd/cdev.c @@ -201,7 +201,7 @@ static int idxd_cdev_mmap(struct file *filp, struct vm_area_struct *vma) if (rc < 0) return rc; - vma->vm_flags |= VM_DONTCOPY; + vm_flags_set(vma, VM_DONTCOPY); pfn = (base + idxd_get_wq_portal_full_offset(wq->id, IDXD_PORTAL_LIMITED)) >> PAGE_SHIFT; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index bb7350ea1d75..a69fd6fdabb4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -257,7 +257,7 @@ static int amdgpu_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_str */ if (is_cow_mapping(vma->vm_flags) && !(vma->vm_flags & VM_ACCESS_FLAGS)) - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); return drm_gem_ttm_mmap(obj, vma); } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 6d291aa6386b..d0933dd9af06 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -2879,8 +2879,8 @@ static int kfd_mmio_mmap(struct kfd_dev *dev, struct kfd_process *process, address = dev->adev->rmmio_remap.bus_addr; - vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE | - VM_DONTDUMP | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE | + VM_DONTDUMP | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c index cd4e61bf0493..cbef2e147da5 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c @@ -159,8 +159,8 @@ int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, address = kfd_get_process_doorbells(pdd); if (!address) return -ENOMEM; - vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE | - VM_DONTDUMP | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE | + VM_DONTDUMP | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c index 729d26d648af..dd0436bf349a 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c @@ -1052,8 +1052,8 @@ int kfd_event_mmap(struct kfd_process *p, struct vm_area_struct *vma) pfn = __pa(page->kernel_address); pfn >>= PAGE_SHIFT; - vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE - | VM_DONTDUMP | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE + | VM_DONTDUMP | VM_PFNMAP); pr_debug("Mapping signal page\n"); pr_debug(" start user address == 0x%08lx\n", vma->vm_start); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 51b1683ac5c1..1fad0ecdfaeb 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1978,8 +1978,8 @@ int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, return -ENOMEM; } - vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND - | VM_NORESERVE | VM_DONTDUMP | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_DONTCOPY | VM_DONTEXPAND + | VM_NORESERVE | VM_DONTDUMP | VM_PFNMAP); /* Mapping pages to user process */ return remap_pfn_range(vma, vma->vm_start, PFN_DOWN(__pa(qpd->cwsr_kaddr)), diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index b8db675e7fb5..54c76003d2cc 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -1047,7 +1047,7 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, goto err_drm_gem_object_put; } - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); } diff --git a/drivers/gpu/drm/drm_gem_dma_helper.c b/drivers/gpu/drm/drm_gem_dma_helper.c index 1e658c448366..fb2c764accc6 100644 --- a/drivers/gpu/drm/drm_gem_dma_helper.c +++ b/drivers/gpu/drm/drm_gem_dma_helper.c @@ -530,8 +530,7 @@ int drm_gem_dma_mmap(struct drm_gem_dma_object *dma_obj, struct vm_area_struct * * the whole buffer. */ vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node); - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_mod(vma, VM_DONTEXPAND, VM_PFNMAP); if (dma_obj->map_noncoherent) { vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index b602cd72a120..a2c28483e010 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -633,7 +633,7 @@ int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct if (ret) return ret; - vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); if (shmem->map_wc) vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index f024dc93939e..87c9fe55dec7 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -476,7 +476,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma) if (!capable(CAP_SYS_ADMIN) && (dma->flags & _DRM_DMA_USE_PCI_RO)) { - vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE); + vm_flags_clear(vma, VM_WRITE | VM_MAYWRITE); #if defined(__i386__) || defined(__x86_64__) pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW; #else @@ -492,7 +492,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma) vma->vm_ops = &drm_vm_dma_ops; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); drm_vm_open_locked(dev, vma); return 0; @@ -560,7 +560,7 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) return -EINVAL; if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) { - vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE); + vm_flags_clear(vma, VM_WRITE | VM_MAYWRITE); #if defined(__i386__) || defined(__x86_64__) pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW; #else @@ -628,7 +628,7 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) default: return -EINVAL; /* This should never happen. */ } - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); drm_vm_open_locked(dev, vma); return 0; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c index c5ae5492e1af..b5f73502e3dd 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c @@ -130,7 +130,7 @@ static int etnaviv_gem_mmap_obj(struct etnaviv_gem_object *etnaviv_obj, { pgprot_t vm_page_prot; - vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); vm_page_prot = vm_get_page_prot(vma->vm_flags); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 3e493f48e0d4..638ca96830e9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -274,7 +274,7 @@ static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem *exynos_gem, unsigned long vm_size; int ret; - vma->vm_flags &= ~VM_PFNMAP; + vm_flags_clear(vma, VM_PFNMAP); vma->vm_pgoff = 0; vm_size = vma->vm_end - vma->vm_start; @@ -368,7 +368,7 @@ static int exynos_drm_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct if (obj->import_attach) return dma_buf_mmap(obj->dma_buf, vma, 0); - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); DRM_DEV_DEBUG_KMS(to_dma_dev(obj->dev), "flags = 0x%x\n", exynos_gem->flags); diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index 8d5a37b8f110..a9276c8a3e4e 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -139,7 +139,7 @@ static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma) */ vma->vm_ops = &psbfb_vm_ops; vma->vm_private_data = (void *)fb; - vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP); return 0; } diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index 9fb4dd63342f..01967dd88762 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -102,7 +102,7 @@ static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma) buf = dev_priv->mmap_buffer; buf_priv = buf->dev_private; - vma->vm_flags |= VM_DONTCOPY; + vm_flags_set(vma, VM_DONTCOPY); buf_priv->currently_mapped = I810_BUF_MAPPED; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index 0ad44f3868de..e95f4c729ca5 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -979,7 +979,7 @@ int i915_gem_mmap(struct file *filp, struct vm_area_struct *vma) i915_gem_object_put(obj); return -EINVAL; } - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); } anon = mmap_singleton(to_i915(dev)); @@ -988,7 +988,7 @@ int i915_gem_mmap(struct file *filp, struct vm_area_struct *vma) return PTR_ERR(anon); } - vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | VM_IO; + vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | VM_IO); /* * We keep the ref on mmo->obj, not vm_file, but we require diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 47e96b0289f9..28659514bf20 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -158,7 +158,7 @@ static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj, * dma_alloc_attrs() allocated a struct page table for mtk_gem, so clear * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap(). */ - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 1dee0d18abbb..c2fb98a94bc3 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -1012,7 +1012,7 @@ static int msm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct { struct msm_gem_object *msm_obj = to_msm_bo(obj); - vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags)); return 0; diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c index cf571796fd26..19fef933904b 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem.c +++ b/drivers/gpu/drm/omapdrm/omap_gem.c @@ -543,8 +543,7 @@ int omap_gem_mmap_obj(struct drm_gem_object *obj, { struct omap_gem_object *omap_obj = to_omap_bo(obj); - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_flags |= VM_MIXEDMAP; + vm_flags_mod(vma, VM_MIXEDMAP, VM_PFNMAP); if (omap_obj->flags & OMAP_BO_WC) { vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index 6edb7c52cb3d..8ea09d915c3c 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -251,8 +251,7 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj, * We allocated a struct page table for rk_obj, so clear * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap(). */ - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; - vma->vm_flags &= ~VM_PFNMAP; + vm_flags_mod(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP, VM_PFNMAP); vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index 979e7bc902f6..bce991a2ccc0 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -574,7 +574,7 @@ int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma) * and set the vm_pgoff (used as a fake buffer offset by DRM) * to 0 as we want to map the whole buffer. */ - vma->vm_flags &= ~VM_PFNMAP; + vm_flags_clear(vma, VM_PFNMAP); vma->vm_pgoff = 0; err = dma_mmap_wc(gem->dev->dev, vma, bo->vaddr, bo->iova, @@ -588,8 +588,7 @@ int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma) } else { pgprot_t prot = vm_get_page_prot(vma->vm_flags); - vma->vm_flags |= VM_MIXEDMAP; - vma->vm_flags &= ~VM_PFNMAP; + vm_flags_mod(vma, VM_MIXEDMAP, VM_PFNMAP); vma->vm_page_prot = pgprot_writecombine(prot); } diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 5a3e4b891377..c00207582c74 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -468,8 +468,7 @@ int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo) vma->vm_private_data = bo; - vma->vm_flags |= VM_PFNMAP; - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_PFNMAP | VM_IO | VM_DONTEXPAND | VM_DONTDUMP); return 0; } EXPORT_SYMBOL(ttm_bo_mmap_obj); diff --git a/drivers/gpu/drm/virtio/virtgpu_vram.c b/drivers/gpu/drm/virtio/virtgpu_vram.c index 6b45b0429fef..25df81c02783 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vram.c +++ b/drivers/gpu/drm/virtio/virtgpu_vram.c @@ -46,7 +46,7 @@ static int virtio_gpu_vram_mmap(struct drm_gem_object *obj, return -EINVAL; vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node); - vma->vm_flags |= VM_MIXEDMAP | VM_DONTEXPAND; + vm_flags_set(vma, VM_MIXEDMAP | VM_DONTEXPAND); vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); vma->vm_ops = &virtio_gpu_vram_vm_ops; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c index 265f7c48d856..90097d04b45f 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c @@ -97,7 +97,7 @@ int vmw_mmap(struct file *filp, struct vm_area_struct *vma) /* Use VM_PFNMAP rather than VM_MIXEDMAP if not a COW mapping */ if (!is_cow_mapping(vma->vm_flags)) - vma->vm_flags = (vma->vm_flags & ~VM_MIXEDMAP) | VM_PFNMAP; + vm_flags_mod(vma, VM_PFNMAP, VM_MIXEDMAP); ttm_bo_put(bo); /* release extra ref taken by ttm_bo_mmap_obj() */ diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/xen_drm_front_gem.c index 4c95ebcdcc2d..3ad2b4cfd1f0 100644 --- a/drivers/gpu/drm/xen/xen_drm_front_gem.c +++ b/drivers/gpu/drm/xen/xen_drm_front_gem.c @@ -69,8 +69,7 @@ static int xen_drm_front_gem_object_mmap(struct drm_gem_object *gem_obj, * vm_pgoff (used as a fake buffer offset by DRM) to 0 as we want to map * the whole buffer. */ - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_flags |= VM_MIXEDMAP | VM_DONTEXPAND; + vm_flags_mod(vma, VM_MIXEDMAP | VM_DONTEXPAND, VM_PFNMAP); vma->vm_pgoff = 0; /* diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c index 8069f795c864..daa8e1bff5d9 100644 --- a/drivers/hsi/clients/cmt_speech.c +++ b/drivers/hsi/clients/cmt_speech.c @@ -1264,7 +1264,7 @@ static int cs_char_mmap(struct file *file, struct vm_area_struct *vma) if (vma_pages(vma) != 1) return -EINVAL; - vma->vm_flags |= VM_IO | VM_DONTDUMP | VM_DONTEXPAND; + vm_flags_set(vma, VM_IO | VM_DONTDUMP | VM_DONTEXPAND); vma->vm_ops = &cs_char_vm_ops; vma->vm_private_data = file->private_data; diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index 6c8215a47a60..9621efe0e95c 100644 --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -1659,7 +1659,7 @@ out: atomic_dec(&msc->user_count); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - vma->vm_flags |= VM_DONTEXPAND | VM_DONTCOPY; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTCOPY); vma->vm_ops = &msc_mmap_ops; return ret; } diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index 2712e699ba08..534fbefc7f6a 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -715,7 +715,7 @@ static int stm_char_mmap(struct file *file, struct vm_area_struct *vma) pm_runtime_get_sync(&stm->dev); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &stm_mmap_vmops; vm_iomap_memory(vma, phys, size); diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index f5f9269fdc16..c6e59bc480f9 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -403,7 +403,7 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) ret = -EPERM; goto done; } - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); addr = vma->vm_start; for (i = 0 ; i < uctxt->egrbufs.numbufs; i++) { memlen = uctxt->egrbufs.buffers[i].len; @@ -528,7 +528,7 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) goto done; } - vma->vm_flags = flags; + vm_flags_reset(vma, flags); hfi1_cdbg(PROC, "%u:%u type:%u io/vf:%d/%d, addr:0x%llx, len:%lu(%lu), flags:0x%lx\n", ctxt, subctxt, type, mapio, vmf, memaddr, memlen, diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index c669ef6e47e7..e3c97aa2c46c 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2087,7 +2087,7 @@ static int mlx5_ib_mmap_clock_info_page(struct mlx5_ib_dev *dev, if (vma->vm_flags & (VM_WRITE | VM_EXEC)) return -EPERM; - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); if (!dev->mdev->clock_info) return -EOPNOTSUPP; @@ -2311,7 +2311,7 @@ static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vm if (vma->vm_flags & VM_WRITE) return -EPERM; - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); /* Don't expose to user-space information it shouldn't have */ if (PAGE_SIZE > 4096) diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index 3937144b2ae5..80fe92a21f96 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -733,7 +733,7 @@ static int qib_mmap_mem(struct vm_area_struct *vma, struct qib_ctxtdata *rcd, } /* don't allow them to later change with mprotect */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); } pfn = virt_to_phys(kvaddr) >> PAGE_SHIFT; @@ -769,7 +769,7 @@ static int mmap_ureg(struct vm_area_struct *vma, struct qib_devdata *dd, phys = dd->physaddr + ureg; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTCOPY | VM_DONTEXPAND); ret = io_remap_pfn_range(vma, vma->vm_start, phys >> PAGE_SHIFT, vma->vm_end - vma->vm_start, @@ -810,8 +810,7 @@ static int mmap_piobufs(struct vm_area_struct *vma, * don't allow them to later change to readable with mprotect (for when * not initially mapped readable, as is normally the case) */ - vma->vm_flags &= ~VM_MAYREAD; - vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; + vm_flags_mod(vma, VM_DONTCOPY | VM_DONTEXPAND, VM_MAYREAD); /* We used PAT if wc_cookie == 0 */ if (!dd->wc_cookie) @@ -852,7 +851,7 @@ static int mmap_rcvegrbufs(struct vm_area_struct *vma, goto bail; } /* don't allow them to later change to writable with mprotect */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); start = vma->vm_start; @@ -944,7 +943,7 @@ static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr, * Don't allow permission to later change to writable * with mprotect. */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); } else goto bail; len = vma->vm_end - vma->vm_start; @@ -955,7 +954,7 @@ static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr, vma->vm_pgoff = (unsigned long) addr >> PAGE_SHIFT; vma->vm_ops = &qib_file_vm_ops; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); ret = 1; bail: diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c index 6e8c4fbb8083..6289238cc5af 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c @@ -672,7 +672,7 @@ int usnic_ib_mmap(struct ib_ucontext *context, usnic_dbg("\n"); us_ibdev = to_usdev(context->device); - vma->vm_flags |= VM_IO; + vm_flags_set(vma, VM_IO); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vfid = vma->vm_pgoff; usnic_dbg("Page Offset %lu PAGE_SHIFT %u VFID %u\n", diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c index 19176583dbde..9f54aa90a35a 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c @@ -408,7 +408,7 @@ int pvrdma_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) } /* Map UAR to kernel space, VM_LOCKED? */ - vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTCOPY | VM_DONTEXPAND); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); if (io_remap_pfn_range(vma, start, context->uar.pfn, size, vma->vm_page_prot)) diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c index 5f1175f8b349..205d3cac425c 100644 --- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c +++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c @@ -293,7 +293,7 @@ static int vb2_dc_mmap(void *buf_priv, struct vm_area_struct *vma) return ret; } - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_private_data = &buf->handler; vma->vm_ops = &vb2_common_vm_ops; diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c index 959b45beb1f3..a6c6d2fcaaa4 100644 --- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c +++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c @@ -185,7 +185,7 @@ static int vb2_vmalloc_mmap(void *buf_priv, struct vm_area_struct *vma) /* * Make sure that vm_areas for 2 buffers won't be merged together */ - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); /* * Use common vm_area operations to track buffer refcount. diff --git a/drivers/media/v4l2-core/videobuf-dma-contig.c b/drivers/media/v4l2-core/videobuf-dma-contig.c index f2c439359557..4c2ec7a0d804 100644 --- a/drivers/media/v4l2-core/videobuf-dma-contig.c +++ b/drivers/media/v4l2-core/videobuf-dma-contig.c @@ -314,7 +314,7 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q, } vma->vm_ops = &videobuf_vm_ops; - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); vma->vm_private_data = map; dev_dbg(q->dev, "mmap %p: q=%p %08lx-%08lx (%lx) pgoff %08lx buf %d\n", diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c index 234e9f647c96..53001532e8e3 100644 --- a/drivers/media/v4l2-core/videobuf-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf-dma-sg.c @@ -630,8 +630,8 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q, map->count = 1; map->q = q; vma->vm_ops = &videobuf_vm_ops; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; - vma->vm_flags &= ~VM_IO; /* using shared anonymous pages */ + /* using shared anonymous pages */ + vm_flags_mod(vma, VM_DONTEXPAND | VM_DONTDUMP, VM_IO); vma->vm_private_data = map; dprintk(1, "mmap %p: q=%p %08lx-%08lx pgoff %08lx bufs %d-%d\n", map, q, vma->vm_start, vma->vm_end, vma->vm_pgoff, first, last); diff --git a/drivers/media/v4l2-core/videobuf-vmalloc.c b/drivers/media/v4l2-core/videobuf-vmalloc.c index 9b2443720ab0..85c7090606d6 100644 --- a/drivers/media/v4l2-core/videobuf-vmalloc.c +++ b/drivers/media/v4l2-core/videobuf-vmalloc.c @@ -247,7 +247,7 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q, } vma->vm_ops = &videobuf_vm_ops; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_private_data = map; dprintk(1, "mmap %p: q=%p %08lx-%08lx (%lx) pgoff %08lx buf %d\n", diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index acaa44809c58..76b5ea66dfa1 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -220,7 +220,7 @@ int cxl_context_iomap(struct cxl_context *ctx, struct vm_area_struct *vma) pr_devel("%s: mmio physical: %llx pe: %i master:%i\n", __func__, ctx->psn_phys, ctx->pe , ctx->master); - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &cxl_mmap_vmops; return 0; diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index 5e9ae7600d75..6bb44a3ad5e6 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -2082,7 +2082,7 @@ static int hl_ts_mmap(struct hl_mmap_mem_buf *buf, struct vm_area_struct *vma, v { struct hl_ts_buff *ts_buff = buf->private; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_DONTCOPY | VM_NORESERVE; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP | VM_DONTCOPY | VM_NORESERVE); return remap_vmalloc_range(vma, ts_buff->user_buff_address, 0); } diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 9f5e208701ba..3b0afdc50ff9 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -4236,8 +4236,8 @@ static int gaudi_mmap(struct hl_device *hdev, struct vm_area_struct *vma, { int rc; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | - VM_DONTCOPY | VM_NORESERVE; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | + VM_DONTCOPY | VM_NORESERVE); rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr, (dma_addr - HOST_PHYS_BASE), size); diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c index e793fb2bdcbe..65502ec02bc0 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -5538,8 +5538,8 @@ static int gaudi2_mmap(struct hl_device *hdev, struct vm_area_struct *vma, { int rc; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | - VM_DONTCOPY | VM_NORESERVE; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | + VM_DONTCOPY | VM_NORESERVE); #ifdef _HAS_DMA_MMAP_COHERENT @@ -10116,8 +10116,8 @@ static int gaudi2_block_mmap(struct hl_device *hdev, struct vm_area_struct *vma, address = pci_resource_start(hdev->pdev, SRAM_CFG_BAR_ID) + offset_in_bar; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | - VM_DONTCOPY | VM_NORESERVE; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | + VM_DONTCOPY | VM_NORESERVE); rc = remap_pfn_range(vma, vma->vm_start, address >> PAGE_SHIFT, block_size, vma->vm_page_prot); diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 0f083fcf81a6..2a15a305d01b 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -2880,8 +2880,8 @@ static int goya_mmap(struct hl_device *hdev, struct vm_area_struct *vma, { int rc; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | - VM_DONTCOPY | VM_NORESERVE; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | + VM_DONTCOPY | VM_NORESERVE); rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr, (dma_addr - HOST_PHYS_BASE), size); diff --git a/drivers/misc/ocxl/context.c b/drivers/misc/ocxl/context.c index 9eb0d93b01c6..7f83116ae11a 100644 --- a/drivers/misc/ocxl/context.c +++ b/drivers/misc/ocxl/context.c @@ -180,7 +180,7 @@ static int check_mmap_afu_irq(struct ocxl_context *ctx, if ((vma->vm_flags & VM_READ) || (vma->vm_flags & VM_EXEC) || !(vma->vm_flags & VM_WRITE)) return -EINVAL; - vma->vm_flags &= ~(VM_MAYREAD | VM_MAYEXEC); + vm_flags_clear(vma, VM_MAYREAD | VM_MAYEXEC); return 0; } @@ -204,7 +204,7 @@ int ocxl_context_mmap(struct ocxl_context *ctx, struct vm_area_struct *vma) if (rc) return rc; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &ocxl_vmops; return 0; diff --git a/drivers/misc/ocxl/sysfs.c b/drivers/misc/ocxl/sysfs.c index 25c78df8055d..405180d47d9b 100644 --- a/drivers/misc/ocxl/sysfs.c +++ b/drivers/misc/ocxl/sysfs.c @@ -134,7 +134,7 @@ static int global_mmio_mmap(struct file *filp, struct kobject *kobj, (afu->config.global_mmio_size >> PAGE_SHIFT)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &global_mmio_vmops; vma->vm_private_data = afu; diff --git a/drivers/misc/open-dice.c b/drivers/misc/open-dice.c index 9dda47b3fd70..8aea2d070a40 100644 --- a/drivers/misc/open-dice.c +++ b/drivers/misc/open-dice.c @@ -95,12 +95,12 @@ static int open_dice_mmap(struct file *filp, struct vm_area_struct *vma) if (vma->vm_flags & VM_WRITE) return -EPERM; /* Ensure userspace cannot acquire VM_WRITE later. */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); } /* Create write-combine mapping so all clients observe a wipe. */ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); - vma->vm_flags |= VM_DONTCOPY | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTCOPY | VM_DONTDUMP); return vm_iomap_memory(vma, drvdata->rmem->base, drvdata->rmem->size); } diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c index 7ffcfc0bb587..a3d659c11cc4 100644 --- a/drivers/misc/sgi-gru/grufile.c +++ b/drivers/misc/sgi-gru/grufile.c @@ -101,8 +101,8 @@ static int gru_file_mmap(struct file *file, struct vm_area_struct *vma) vma->vm_end & (GRU_GSEG_PAGESIZE - 1)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_LOCKED | - VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_LOCKED | + VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_page_prot = PAGE_SHARED; vma->vm_ops = &gru_vm_ops; diff --git a/drivers/misc/uacce/uacce.c b/drivers/misc/uacce/uacce.c index 905eff1f840e..b65ab440a19e 100644 --- a/drivers/misc/uacce/uacce.c +++ b/drivers/misc/uacce/uacce.c @@ -229,7 +229,7 @@ static int uacce_fops_mmap(struct file *filep, struct vm_area_struct *vma) if (!qfr) return -ENOMEM; - vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND | VM_WIPEONFORK; + vm_flags_set(vma, VM_DONTCOPY | VM_DONTEXPAND | VM_WIPEONFORK); vma->vm_ops = &uacce_vm_ops; vma->vm_private_data = q; qfr->type = type; diff --git a/drivers/sbus/char/oradax.c b/drivers/sbus/char/oradax.c index 21b7cb6e7e70..e300cf26bc2a 100644 --- a/drivers/sbus/char/oradax.c +++ b/drivers/sbus/char/oradax.c @@ -389,7 +389,7 @@ static int dax_devmap(struct file *f, struct vm_area_struct *vma) /* completion area is mapped read-only for user */ if (vma->vm_flags & VM_WRITE) return -EPERM; - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); if (remap_pfn_range(vma, vma->vm_start, ctx->ca_buf_ra >> PAGE_SHIFT, len, vma->vm_page_prot)) diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c index 631eda2d467e..6542818e595a 100644 --- a/drivers/scsi/cxlflash/ocxl_hw.c +++ b/drivers/scsi/cxlflash/ocxl_hw.c @@ -1167,7 +1167,7 @@ static int afu_mmap(struct file *file, struct vm_area_struct *vma) (ctx->psn_size >> PAGE_SHIFT)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP; + vm_flags_set(vma, VM_IO | VM_PFNMAP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &ocxlflash_vmops; return 0; diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index ff9854f59964..a91049213203 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1288,7 +1288,7 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma) } sfp->mmap_called = 1; - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_private_data = sfp; vma->vm_ops = &sg_mmap_vm_ops; out: diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c index 5e53eed8ae95..095cd0ba8c21 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c @@ -1072,7 +1072,7 @@ int hmm_bo_mmap(struct vm_area_struct *vma, struct hmm_buffer_object *bo) vma->vm_private_data = bo; vma->vm_ops = &hmm_bo_vm_ops; - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); /* * call hmm_bo_vm_open explicitly. diff --git a/drivers/staging/media/deprecated/meye/meye.c b/drivers/staging/media/deprecated/meye/meye.c index 5d87efd9b95c..746c6ea1c0a7 100644 --- a/drivers/staging/media/deprecated/meye/meye.c +++ b/drivers/staging/media/deprecated/meye/meye.c @@ -1476,8 +1476,8 @@ static int meye_mmap(struct file *file, struct vm_area_struct *vma) } vma->vm_ops = &meye_vm_ops; - vma->vm_flags &= ~VM_IO; /* not I/O memory */ - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + /* not I/O memory */ + vm_flags_mod(vma, VM_DONTEXPAND | VM_DONTDUMP, VM_IO); vma->vm_private_data = (void *) (offset / gbufsize); meye_vm_open(vma); diff --git a/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c index 787edb3d47c2..a1b7ad350a90 100644 --- a/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c +++ b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c @@ -779,7 +779,7 @@ static int v4l_stk_mmap(struct file *fp, struct vm_area_struct *vma) ret = remap_vmalloc_range(vma, sbuf->buffer, 0); if (ret) return ret; - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); vma->vm_private_data = sbuf; vma->vm_ops = &stk_v4l_vm_ops; sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_MAPPED; diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 2940559c3086..15ffc8d2ac7b 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -1928,7 +1928,7 @@ static int tcmu_mmap(struct uio_info *info, struct vm_area_struct *vma) { struct tcmu_dev *udev = container_of(info, struct tcmu_dev, uio_info); - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &tcmu_vm_ops; vma->vm_private_data = udev; diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 43afbb7c5ab9..62082d64ece0 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -713,7 +713,7 @@ static const struct vm_operations_struct uio_logical_vm_ops = { static int uio_mmap_logical(struct vm_area_struct *vma) { - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &uio_logical_vm_ops; return 0; } diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 837f3e57f580..e501a03d6c70 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -279,8 +279,7 @@ static int usbdev_mmap(struct file *file, struct vm_area_struct *vma) } } - vma->vm_flags |= VM_IO; - vma->vm_flags |= (VM_DONTEXPAND | VM_DONTDUMP); + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &usbdev_vm_ops; vma->vm_private_data = usbm; diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 094e812e9e69..abb1cd35d8a6 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -1272,8 +1272,7 @@ static int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma) if (vma->vm_flags & VM_WRITE) return -EPERM; - vma->vm_flags &= ~VM_MAYWRITE; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_mod(vma, VM_DONTEXPAND | VM_DONTDUMP, VM_MAYWRITE); vma->vm_private_data = filp->private_data; mon_bin_vma_open(vma); return 0; diff --git a/drivers/vdpa/vdpa_user/iova_domain.c b/drivers/vdpa/vdpa_user/iova_domain.c index e682bc7ee6c9..5e4a77b9bae6 100644 --- a/drivers/vdpa/vdpa_user/iova_domain.c +++ b/drivers/vdpa/vdpa_user/iova_domain.c @@ -512,7 +512,7 @@ static int vduse_domain_mmap(struct file *file, struct vm_area_struct *vma) { struct vduse_iova_domain *domain = file->private_data; - vma->vm_flags |= VM_DONTDUMP | VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTDUMP | VM_DONTEXPAND); vma->vm_private_data = domain; vma->vm_ops = &vduse_domain_mmap_ops; diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index 26a541cc64d1..c49f8f2b2865 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -1799,7 +1799,7 @@ int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma * See remap_pfn_range(), called from vfio_pci_fault() but we can't * change vm_flags within the fault handler. Set them now. */ - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &vfio_pci_mmap_ops; return 0; diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index ec32f785dfde..9c5010ee20da 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -1315,7 +1315,7 @@ static int vhost_vdpa_mmap(struct file *file, struct vm_area_struct *vma) if (vma->vm_end - vma->vm_start != notify.size) return -ENOTSUPP; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &vhost_vdpa_vm_ops; return 0; } diff --git a/drivers/video/fbdev/68328fb.c b/drivers/video/fbdev/68328fb.c index 7db03ed77c76..41df61b37a18 100644 --- a/drivers/video/fbdev/68328fb.c +++ b/drivers/video/fbdev/68328fb.c @@ -391,7 +391,7 @@ static int mc68x328fb_mmap(struct fb_info *info, struct vm_area_struct *vma) #ifndef MMU /* this is uClinux (no MMU) specific code */ - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_start = videomemory; return 0; diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c index c730253ab85c..dc310c7b5769 100644 --- a/drivers/video/fbdev/core/fb_defio.c +++ b/drivers/video/fbdev/core/fb_defio.c @@ -232,9 +232,9 @@ static const struct address_space_operations fb_deferred_io_aops = { int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma) { vma->vm_ops = &fb_deferred_io_vm_ops; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); if (!(info->flags & FBINFO_VIRTFB)) - vma->vm_flags |= VM_IO; + vm_flags_set(vma, VM_IO); vma->vm_private_data = info; return 0; } diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c index a15729beb9d1..26ffb8755ffb 100644 --- a/drivers/xen/gntalloc.c +++ b/drivers/xen/gntalloc.c @@ -525,7 +525,7 @@ static int gntalloc_mmap(struct file *filp, struct vm_area_struct *vma) vma->vm_private_data = vm_priv; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &gntalloc_vmops; diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 4d9a3050de6a..61faea1f0663 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -1055,10 +1055,10 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) vma->vm_ops = &gntdev_vmops; - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_MIXEDMAP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP | VM_MIXEDMAP); if (use_ptemod) - vma->vm_flags |= VM_DONTCOPY; + vm_flags_set(vma, VM_DONTCOPY); vma->vm_private_data = map; if (map->flags) { diff --git a/drivers/xen/privcmd-buf.c b/drivers/xen/privcmd-buf.c index dd5bbb6e1b6b..2fa10ca5be14 100644 --- a/drivers/xen/privcmd-buf.c +++ b/drivers/xen/privcmd-buf.c @@ -156,7 +156,7 @@ static int privcmd_buf_mmap(struct file *file, struct vm_area_struct *vma) vma_priv->file_priv = file_priv; vma_priv->users = 1; - vma->vm_flags |= VM_IO | VM_DONTEXPAND; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND); vma->vm_ops = &privcmd_buf_vm_ops; vma->vm_private_data = vma_priv; diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 1edf45ee9890..e2f580e30a86 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -934,8 +934,8 @@ static int privcmd_mmap(struct file *file, struct vm_area_struct *vma) { /* DONTCOPY is essential for Xen because copy_page_range doesn't know * how to recreate these mappings */ - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTCOPY | - VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTCOPY | + VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &privcmd_vm_ops; vma->vm_private_data = NULL; diff --git a/fs/aio.c b/fs/aio.c index 562916d85cba..5a88caf52be4 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -390,7 +390,7 @@ static const struct vm_operations_struct aio_ring_vm_ops = { static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma) { - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); vma->vm_ops = &aio_ring_vm_ops; return 0; } diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 50e4e060db68..45a65c400bd0 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -408,7 +408,7 @@ static int cramfs_physmem_mmap(struct file *file, struct vm_area_struct *vma) * unpopulated ptes via cramfs_read_folio(). */ int i; - vma->vm_flags |= VM_MIXEDMAP; + vm_flags_set(vma, VM_MIXEDMAP); for (i = 0; i < pages && !ret; i++) { vm_fault_t vmf; unsigned long off = i * PAGE_SIZE; diff --git a/fs/erofs/data.c b/fs/erofs/data.c index f57f921683d7..f32d65987578 100644 --- a/fs/erofs/data.c +++ b/fs/erofs/data.c @@ -429,7 +429,7 @@ static int erofs_file_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_ops = &erofs_dax_vm_ops; - vma->vm_flags |= VM_HUGEPAGE; + vm_flags_set(vma, VM_HUGEPAGE); return 0; } #else diff --git a/fs/exec.c b/fs/exec.c index c0df813d2b45..d2e2a15e5cfe 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -270,7 +270,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm) BUILD_BUG_ON(VM_STACK_FLAGS & VM_STACK_INCOMPLETE_SETUP); vma->vm_end = STACK_TOP_MAX; vma->vm_start = vma->vm_end - PAGE_SIZE; - vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP; + vm_flags_init(vma, VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP); vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); err = insert_vm_struct(mm, vma); @@ -834,7 +834,7 @@ int setup_arg_pages(struct linux_binprm *bprm, } /* mprotect_fixup is overkill to remove the temporary stack flags */ - vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP; + vm_flags_clear(vma, VM_STACK_INCOMPLETE_SETUP); stack_expand = 131072UL; /* randomly 32*4k (or 2*64k) pages */ stack_size = vma->vm_end - vma->vm_start; diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 7ac0a81bd371..6bdf61a62c79 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -801,7 +801,7 @@ static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma) file_accessed(file); if (IS_DAX(file_inode(file))) { vma->vm_ops = &ext4_dax_vm_ops; - vma->vm_flags |= VM_HUGEPAGE; + vm_flags_set(vma, VM_HUGEPAGE); } else { vma->vm_ops = &ext4_file_vm_ops; } diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c index e23e802a8013..8e74f278a3f6 100644 --- a/fs/fuse/dax.c +++ b/fs/fuse/dax.c @@ -860,7 +860,7 @@ int fuse_dax_mmap(struct file *file, struct vm_area_struct *vma) { file_accessed(file); vma->vm_ops = &fuse_dax_vm_ops; - vma->vm_flags |= VM_MIXEDMAP | VM_HUGEPAGE; + vm_flags_set(vma, VM_MIXEDMAP | VM_HUGEPAGE); return 0; } diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 48f1a8ad2243..44ecdcb796cc 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -132,7 +132,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) * way when do_mmap unwinds (may be important on powerpc * and ia64). */ - vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND; + vm_flags_set(vma, VM_HUGETLB | VM_DONTEXPAND); vma->vm_ops = &hugetlb_vm_ops; ret = seal_check_future_write(info->seals, vma); @@ -811,7 +811,7 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset, * as input to create an allocation policy. */ vma_init(&pseudo_vma, mm); - pseudo_vma.vm_flags = (VM_HUGETLB | VM_MAYSHARE | VM_SHARED); + vm_flags_init(&pseudo_vma, VM_HUGETLB | VM_MAYSHARE | VM_SHARED); pseudo_vma.vm_file = file; for (index = start; index < end; index++) { diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c index 167fa43b24f9..a5e1ea8b7119 100644 --- a/fs/orangefs/file.c +++ b/fs/orangefs/file.c @@ -389,8 +389,7 @@ static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma) "orangefs_file_mmap: called on %pD\n", file); /* set the sequential readahead hint */ - vma->vm_flags |= VM_SEQ_READ; - vma->vm_flags &= ~VM_RAND_READ; + vm_flags_mod(vma, VM_SEQ_READ, VM_RAND_READ); file_accessed(file); vma->vm_ops = &orangefs_file_vm_ops; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index a944e1816364..6a96e1713fd5 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1299,7 +1299,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf, for_each_vma(vmi, vma) { if (!(vma->vm_flags & VM_SOFTDIRTY)) continue; - vma->vm_flags &= ~VM_SOFTDIRTY; + vm_flags_clear(vma, VM_SOFTDIRTY); vma_set_page_prot(vma); } diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 09a81e4b1273..12af614f33ce 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -582,8 +582,7 @@ static int mmap_vmcore(struct file *file, struct vm_area_struct *vma) if (vma->vm_flags & (VM_WRITE | VM_EXEC)) return -EPERM; - vma->vm_flags &= ~(VM_MAYWRITE | VM_MAYEXEC); - vma->vm_flags |= VM_MIXEDMAP; + vm_flags_mod(vma, VM_MIXEDMAP, VM_MAYWRITE | VM_MAYEXEC); vma->vm_ops = &vmcore_mmap_ops; len = 0; diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index f3c75c6222de..44d1ee429eb0 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -113,7 +113,7 @@ static void userfaultfd_set_vm_flags(struct vm_area_struct *vma, { const bool uffd_wp_changed = (vma->vm_flags ^ flags) & VM_UFFD_WP; - vma->vm_flags = flags; + vm_flags_reset(vma, flags); /* * For shared mappings, we want to enable writenotify while * userfaultfd-wp is enabled (see vma_wants_writenotify()). We'll simply diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 595a5bcf46b9..b0039a8fea2e 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1429,7 +1429,7 @@ xfs_file_mmap( file_accessed(file); vma->vm_ops = &xfs_file_vm_ops; if (IS_DAX(inode)) - vma->vm_flags |= VM_HUGEPAGE; + vm_flags_set(vma, VM_HUGEPAGE); return 0; } diff --git a/include/linux/mm.h b/include/linux/mm.h index 663726ca2240..ce6d9d765aae 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3653,7 +3653,7 @@ static inline int seal_check_future_write(int seals, struct vm_area_struct *vma) * VM_MAYWRITE as we still want them to be COW-writable. */ if (vma->vm_flags & VM_SHARED) - vma->vm_flags &= ~(VM_MAYWRITE); + vm_flags_clear(vma, VM_MAYWRITE); } return 0; diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c index 80f4b4d88aaf..8732e0aadf36 100644 --- a/kernel/bpf/ringbuf.c +++ b/kernel/bpf/ringbuf.c @@ -269,7 +269,7 @@ static int ringbuf_map_mmap_kern(struct bpf_map *map, struct vm_area_struct *vma if (vma->vm_pgoff != 0 || vma->vm_end - vma->vm_start != PAGE_SIZE) return -EPERM; } else { - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); } /* remap_vmalloc_range() checks size and offset constraints */ return remap_vmalloc_range(vma, rb_map->rb, @@ -290,7 +290,7 @@ static int ringbuf_map_mmap_user(struct bpf_map *map, struct vm_area_struct *vma */ return -EPERM; } else { - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); } /* remap_vmalloc_range() checks size and offset constraints */ return remap_vmalloc_range(vma, rb_map->rb, vma->vm_pgoff + RINGBUF_PGOFF); diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 64131f88c553..9f56b442daa9 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -882,10 +882,10 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma) /* set default open/close callbacks */ vma->vm_ops = &bpf_map_default_vmops; vma->vm_private_data = map; - vma->vm_flags &= ~VM_MAYEXEC; + vm_flags_clear(vma, VM_MAYEXEC); if (!(vma->vm_flags & VM_WRITE)) /* disallow re-mapping with PROT_WRITE */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); err = map->ops->map_mmap(map, vma); if (err) diff --git a/kernel/events/core.c b/kernel/events/core.c index d56328e5080e..55a82f12a42c 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -6573,7 +6573,7 @@ aux_unlock: * Since pinned accounting is per vm we cannot allow fork() to copy our * vma. */ - vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &perf_mmap_vmops; if (event->pmu->event_mapped) diff --git a/kernel/kcov.c b/kernel/kcov.c index e5cd09fd8a05..84c717337df0 100644 --- a/kernel/kcov.c +++ b/kernel/kcov.c @@ -489,7 +489,7 @@ static int kcov_mmap(struct file *filep, struct vm_area_struct *vma) goto exit; } spin_unlock_irqrestore(&kcov->lock, flags); - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); for (off = 0; off < size; off += PAGE_SIZE) { page = vmalloc_to_page(kcov->area + off); res = vm_insert_page(vma, vma->vm_start + off, page); diff --git a/kernel/relay.c b/kernel/relay.c index ef12532168d9..9aa70ae53d24 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -91,7 +91,7 @@ static int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma) return -EINVAL; vma->vm_ops = &relay_file_mmap_ops; - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); vma->vm_private_data = buf; return 0; diff --git a/mm/madvise.c b/mm/madvise.c index ca672e37b38c..5a5a687d03c2 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -176,7 +176,7 @@ success: /* * vm_flags is protected by the mmap_lock held in write mode. */ - vma->vm_flags = new_flags; + vm_flags_reset(vma, new_flags); if (!vma->vm_file || vma_is_anon_shmem(vma)) { error = replace_anon_vma_name(vma, anon_name); if (error) diff --git a/mm/memory.c b/mm/memory.c index 029f838587d1..4354b7987f36 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1928,7 +1928,7 @@ int vm_insert_pages(struct vm_area_struct *vma, unsigned long addr, if (!(vma->vm_flags & VM_MIXEDMAP)) { BUG_ON(mmap_read_trylock(vma->vm_mm)); BUG_ON(vma->vm_flags & VM_PFNMAP); - vma->vm_flags |= VM_MIXEDMAP; + vm_flags_set(vma, VM_MIXEDMAP); } /* Defer page refcount checking till we're about to map that page. */ return insert_pages(vma, addr, pages, num, vma->vm_page_prot); @@ -1986,7 +1986,7 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, if (!(vma->vm_flags & VM_MIXEDMAP)) { BUG_ON(mmap_read_trylock(vma->vm_mm)); BUG_ON(vma->vm_flags & VM_PFNMAP); - vma->vm_flags |= VM_MIXEDMAP; + vm_flags_set(vma, VM_MIXEDMAP); } return insert_page(vma, addr, page, vma->vm_page_prot); } @@ -2452,7 +2452,7 @@ int remap_pfn_range_notrack(struct vm_area_struct *vma, unsigned long addr, vma->vm_pgoff = pfn; } - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); BUG_ON(addr >= end); pfn -= addr >> PAGE_SHIFT; diff --git a/mm/mlock.c b/mm/mlock.c index 5c4fff93cd6b..ed49459e343e 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -380,7 +380,7 @@ static void mlock_vma_pages_range(struct vm_area_struct *vma, */ if (newflags & VM_LOCKED) newflags |= VM_IO; - WRITE_ONCE(vma->vm_flags, newflags); + vm_flags_reset(vma, newflags); lru_add_drain(); walk_page_range(vma->vm_mm, start, end, &mlock_walk_ops, NULL); @@ -388,7 +388,7 @@ static void mlock_vma_pages_range(struct vm_area_struct *vma, if (newflags & VM_IO) { newflags &= ~VM_IO; - WRITE_ONCE(vma->vm_flags, newflags); + vm_flags_reset(vma, newflags); } } @@ -457,7 +457,7 @@ success: if ((newflags & VM_LOCKED) && (oldflags & VM_LOCKED)) { /* No work to do, and mlocking twice would be wrong */ - vma->vm_flags = newflags; + vm_flags_reset(vma, newflags); } else { mlock_vma_pages_range(vma, start, end, newflags); } diff --git a/mm/mmap.c b/mm/mmap.c index 03d7c37c5969..33c638c7ec04 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2555,7 +2555,7 @@ cannot_expand: vma_iter_set(&vmi, addr); vma->vm_start = addr; vma->vm_end = end; - vma->vm_flags = vm_flags; + vm_flags_init(vma, vm_flags); vma->vm_page_prot = vm_get_page_prot(vm_flags); vma->vm_pgoff = pgoff; @@ -2683,7 +2683,7 @@ expanded: * then new mapped in-place (which must be aimed as * a completely new data area). */ - vma->vm_flags |= VM_SOFTDIRTY; + vm_flags_set(vma, VM_SOFTDIRTY); vma_set_page_prot(vma); @@ -2909,7 +2909,7 @@ static int do_brk_flags(struct vma_iterator *vmi, struct vm_area_struct *vma, init_vma_prep(&vp, vma); vma_prepare(&vp); vma->vm_end = addr + len; - vma->vm_flags |= VM_SOFTDIRTY; + vm_flags_set(vma, VM_SOFTDIRTY); vma_iter_store(vmi, vma); vma_complete(&vp, vmi, mm); @@ -2926,7 +2926,7 @@ static int do_brk_flags(struct vma_iterator *vmi, struct vm_area_struct *vma, vma->vm_start = addr; vma->vm_end = addr + len; vma->vm_pgoff = addr >> PAGE_SHIFT; - vma->vm_flags = flags; + vm_flags_init(vma, flags); vma->vm_page_prot = vm_get_page_prot(flags); if (vma_iter_store_gfp(vmi, vma, GFP_KERNEL)) goto mas_store_fail; @@ -2938,7 +2938,7 @@ out: mm->data_vm += len >> PAGE_SHIFT; if (flags & VM_LOCKED) mm->locked_vm += (len >> PAGE_SHIFT); - vma->vm_flags |= VM_SOFTDIRTY; + vm_flags_set(vma, VM_SOFTDIRTY); validate_mm(mm); return 0; diff --git a/mm/mprotect.c b/mm/mprotect.c index cce6a0e58fb5..1d4843c97c2a 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -670,7 +670,7 @@ success: * vm_flags and vm_page_prot are protected by the mmap_lock * held in write mode. */ - vma->vm_flags = newflags; + vm_flags_reset(vma, newflags); if (vma_wants_manual_pte_write_upgrade(vma)) mm_cp_flags |= MM_CP_TRY_CHANGE_WRITABLE; vma_set_page_prot(vma); diff --git a/mm/mremap.c b/mm/mremap.c index d70d8063c6e2..411a85682b58 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -662,7 +662,7 @@ static unsigned long move_vma(struct vm_area_struct *vma, /* Conceal VM_ACCOUNT so old reservation is not undone */ if (vm_flags & VM_ACCOUNT && !(flags & MREMAP_DONTUNMAP)) { - vma->vm_flags &= ~VM_ACCOUNT; + vm_flags_clear(vma, VM_ACCOUNT); if (vma->vm_start < old_addr) account_start = vma->vm_start; if (vma->vm_end > old_addr + old_len) @@ -719,12 +719,12 @@ static unsigned long move_vma(struct vm_area_struct *vma, /* Restore VM_ACCOUNT if one or two pieces of vma left */ if (account_start) { vma = vma_prev(&vmi); - vma->vm_flags |= VM_ACCOUNT; + vm_flags_set(vma, VM_ACCOUNT); } if (account_end) { vma = vma_next(&vmi); - vma->vm_flags |= VM_ACCOUNT; + vm_flags_set(vma, VM_ACCOUNT); } return new_addr; diff --git a/mm/nommu.c b/mm/nommu.c index 9a166738909e..57ba243c6a37 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -173,7 +173,7 @@ static void *__vmalloc_user_flags(unsigned long size, gfp_t flags) mmap_write_lock(current->mm); vma = find_vma(current->mm, (unsigned long)ret); if (vma) - vma->vm_flags |= VM_USERMAP; + vm_flags_set(vma, VM_USERMAP); mmap_write_unlock(current->mm); } @@ -950,7 +950,8 @@ static int do_mmap_private(struct vm_area_struct *vma, atomic_long_add(total, &mmap_pages_allocated); - region->vm_flags = vma->vm_flags |= VM_MAPPED_COPY; + vm_flags_set(vma, VM_MAPPED_COPY); + region->vm_flags = vma->vm_flags; region->vm_start = (unsigned long) base; region->vm_end = region->vm_start + len; region->vm_top = region->vm_start + (total << PAGE_SHIFT); @@ -1047,7 +1048,7 @@ unsigned long do_mmap(struct file *file, region->vm_flags = vm_flags; region->vm_pgoff = pgoff; - vma->vm_flags = vm_flags; + vm_flags_init(vma, vm_flags); vma->vm_pgoff = pgoff; if (file) { @@ -1111,7 +1112,7 @@ unsigned long do_mmap(struct file *file, vma->vm_end = start + len; if (pregion->vm_flags & VM_MAPPED_COPY) - vma->vm_flags |= VM_MAPPED_COPY; + vm_flags_set(vma, VM_MAPPED_COPY); else { ret = do_mmap_shared_file(vma); if (ret < 0) { @@ -1601,7 +1602,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, if (addr != (pfn << PAGE_SHIFT)) return -EINVAL; - vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); return 0; } EXPORT_SYMBOL(remap_pfn_range); diff --git a/mm/secretmem.c b/mm/secretmem.c index be3fff86ba00..8453ada8f41d 100644 --- a/mm/secretmem.c +++ b/mm/secretmem.c @@ -128,7 +128,7 @@ static int secretmem_mmap(struct file *file, struct vm_area_struct *vma) if (mlock_future_check(vma->vm_mm, vma->vm_flags | VM_LOCKED, len)) return -EAGAIN; - vma->vm_flags |= VM_LOCKED | VM_DONTDUMP; + vm_flags_set(vma, VM_LOCKED | VM_DONTDUMP); vma->vm_ops = &secretmem_vm_ops; return 0; diff --git a/mm/shmem.c b/mm/shmem.c index 9e1015cbad29..732969afabd1 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2304,7 +2304,7 @@ static int shmem_mmap(struct file *file, struct vm_area_struct *vma) return ret; /* arm64 - allow memory tagging on RAM-based files */ - vma->vm_flags |= VM_MTE_ALLOWED; + vm_flags_set(vma, VM_MTE_ALLOWED); file_accessed(file); /* This is anonymous shared memory if it is unlinked at the time of mmap */ diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 9b71ec3213cb..ff4d7dfdf84a 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3596,7 +3596,7 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr, size -= PAGE_SIZE; } while (size > 0); - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); return 0; } diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index f713c0422f0f..7db45cdc3e1a 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1890,10 +1890,10 @@ int tcp_mmap(struct file *file, struct socket *sock, { if (vma->vm_flags & (VM_WRITE | VM_EXEC)) return -EPERM; - vma->vm_flags &= ~(VM_MAYWRITE | VM_MAYEXEC); + vm_flags_clear(vma, VM_MAYWRITE | VM_MAYEXEC); /* Instruct vm_insert_page() to not mmap_read_lock(mm) */ - vma->vm_flags |= VM_MIXEDMAP; + vm_flags_set(vma, VM_MIXEDMAP); vma->vm_ops = &tcp_vm_ops; return 0; diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 0a6894cdc54d..18498979a640 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -262,7 +262,7 @@ static int sel_mmap_handle_status(struct file *filp, if (vma->vm_flags & VM_WRITE) return -EPERM; /* disallow mprotect() turns it into writable */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); return remap_pfn_range(vma, vma->vm_start, page_to_pfn(status), @@ -506,13 +506,13 @@ static int sel_mmap_policy(struct file *filp, struct vm_area_struct *vma) { if (vma->vm_flags & VM_SHARED) { /* do not allow mprotect to make mapping writable */ - vma->vm_flags &= ~VM_MAYWRITE; + vm_flags_clear(vma, VM_MAYWRITE); if (vma->vm_flags & VM_WRITE) return -EACCES; } - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_ops = &sel_mmap_policy_ops; return 0; diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index ac2efeb63a39..728c211142d1 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -2910,7 +2910,7 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area) } /* set VM_READ access as well to fix memset() routines that do reads before writes (to improve performance) */ - area->vm_flags |= VM_READ; + vm_flags_set(area, VM_READ); if (substream == NULL) return -ENXIO; runtime = substream->runtime; diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 9c122e757efe..331380c2438b 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3675,8 +3675,9 @@ static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file return -EINVAL; area->vm_ops = &snd_pcm_vm_ops_status; area->vm_private_data = substream; - area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; - area->vm_flags &= ~(VM_WRITE | VM_MAYWRITE); + vm_flags_mod(area, VM_DONTEXPAND | VM_DONTDUMP, + VM_WRITE | VM_MAYWRITE); + return 0; } @@ -3712,7 +3713,7 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file return -EINVAL; area->vm_ops = &snd_pcm_vm_ops_control; area->vm_private_data = substream; - area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(area, VM_DONTEXPAND | VM_DONTDUMP); return 0; } @@ -3828,7 +3829,7 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = { int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *area) { - area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(area, VM_DONTEXPAND | VM_DONTDUMP); if (!substream->ops->page && !snd_dma_buffer_mmap(snd_pcm_get_dma_buf(substream), area)) return 0; diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c index fb5a4390443f..b3c1744eff91 100644 --- a/sound/soc/pxa/mmp-sspa.c +++ b/sound/soc/pxa/mmp-sspa.c @@ -404,7 +404,7 @@ static int mmp_pcm_mmap(struct snd_soc_component *component, struct snd_pcm_substream *substream, struct vm_area_struct *vma) { - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); return remap_pfn_range(vma, vma->vm_start, substream->dma_buffer.addr >> PAGE_SHIFT, diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c index e558931cce16..709ccad972e2 100644 --- a/sound/usb/usx2y/us122l.c +++ b/sound/usb/usx2y/us122l.c @@ -224,9 +224,9 @@ static int usb_stream_hwdep_mmap(struct snd_hwdep *hw, } area->vm_ops = &usb_stream_hwdep_vm_ops; - area->vm_flags |= VM_DONTDUMP; + vm_flags_set(area, VM_DONTDUMP); if (!read) - area->vm_flags |= VM_DONTEXPAND; + vm_flags_set(area, VM_DONTEXPAND); area->vm_private_data = us122l; atomic_inc(&us122l->mmap_count); out: diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c index c29da0341bc5..4937ede0b5d7 100644 --- a/sound/usb/usx2y/usX2Yhwdep.c +++ b/sound/usb/usx2y/usX2Yhwdep.c @@ -61,7 +61,7 @@ static int snd_us428ctls_mmap(struct snd_hwdep *hw, struct file *filp, struct vm } area->vm_ops = &us428ctls_vm_ops; - area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(area, VM_DONTEXPAND | VM_DONTDUMP); area->vm_private_data = hw->private_data; return 0; } diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c index 767a227d54da..36f2e31168fb 100644 --- a/sound/usb/usx2y/usx2yhwdeppcm.c +++ b/sound/usb/usx2y/usx2yhwdeppcm.c @@ -706,7 +706,7 @@ static int snd_usx2y_hwdep_pcm_mmap(struct snd_hwdep *hw, struct file *filp, str return -ENODEV; area->vm_ops = &snd_usx2y_hwdep_pcm_vm_ops; - area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(area, VM_DONTEXPAND | VM_DONTDUMP); area->vm_private_data = hw->private_data; return 0; } -- cgit v1.2.3 From 601c3c29dbeb049862faa00917f2daf094a71028 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Tue, 31 Jan 2023 16:01:16 -0800 Subject: mm: introduce vm_flags_reset_once to replace WRITE_ONCE vm_flags updates Provide vm_flags_reset_once() and replace the vm_flags updates which used WRITE_ONCE() to prevent compiler optimizations. Link: https://lkml.kernel.org/r/20230201000116.1333160-1-surenb@google.com Fixes: 0cce31a0aa0e ("mm: replace vma->vm_flags direct modifications with modifier calls") Signed-off-by: Suren Baghdasaryan Reported-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Acked-by: Michal Hocko Signed-off-by: Andrew Morton --- include/linux/mm.h | 7 +++++++ mm/mlock.c | 4 ++-- 2 files changed, 9 insertions(+), 2 deletions(-) (limited to 'mm/mlock.c') diff --git a/include/linux/mm.h b/include/linux/mm.h index 27b34f7730e7..0ed0cb2401f5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -642,6 +642,13 @@ static inline void vm_flags_reset(struct vm_area_struct *vma, vm_flags_init(vma, flags); } +static inline void vm_flags_reset_once(struct vm_area_struct *vma, + vm_flags_t flags) +{ + mmap_assert_write_locked(vma->vm_mm); + WRITE_ONCE(ACCESS_PRIVATE(vma, __vm_flags), flags); +} + static inline void vm_flags_set(struct vm_area_struct *vma, vm_flags_t flags) { diff --git a/mm/mlock.c b/mm/mlock.c index ed49459e343e..617469fce96d 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -380,7 +380,7 @@ static void mlock_vma_pages_range(struct vm_area_struct *vma, */ if (newflags & VM_LOCKED) newflags |= VM_IO; - vm_flags_reset(vma, newflags); + vm_flags_reset_once(vma, newflags); lru_add_drain(); walk_page_range(vma->vm_mm, start, end, &mlock_walk_ops, NULL); @@ -388,7 +388,7 @@ static void mlock_vma_pages_range(struct vm_area_struct *vma, if (newflags & VM_IO) { newflags &= ~VM_IO; - vm_flags_reset(vma, newflags); + vm_flags_reset_once(vma, newflags); } } -- cgit v1.2.3