diff options
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/fd.c | 4 | ||||
| -rw-r--r-- | fs/proc/inode.c | 10 | ||||
| -rw-r--r-- | fs/proc/meminfo.c | 3 | ||||
| -rw-r--r-- | fs/proc/page.c | 69 | ||||
| -rw-r--r-- | fs/proc/proc_net.c | 1 | ||||
| -rw-r--r-- | fs/proc/proc_sysctl.c | 27 | ||||
| -rw-r--r-- | fs/proc/task_mmu.c | 126 | ||||
| -rw-r--r-- | fs/proc/vmcore.c | 5 |
8 files changed, 125 insertions, 120 deletions
diff --git a/fs/proc/fd.c b/fs/proc/fd.c index f4b1c8b42a..586bbc84ca 100644 --- a/fs/proc/fd.c +++ b/fs/proc/fd.c @@ -39,10 +39,8 @@ static int seq_show(struct seq_file *m, void *v) spin_lock(&files->file_lock); file = files_lookup_fd_locked(files, fd); if (file) { - struct fdtable *fdt = files_fdtable(files); - f_flags = file->f_flags; - if (close_on_exec(fd, fdt)) + if (close_on_exec(fd, files)) f_flags |= O_CLOEXEC; get_file(file); diff --git a/fs/proc/inode.c b/fs/proc/inode.c index dcd513dccf..d19434e2a5 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -451,15 +451,13 @@ pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned lo unsigned long len, unsigned long pgoff, unsigned long flags) { - typeof_member(struct proc_ops, proc_get_unmapped_area) get_area; + if (pde->proc_ops->proc_get_unmapped_area) + return pde->proc_ops->proc_get_unmapped_area(file, orig_addr, len, pgoff, flags); - get_area = pde->proc_ops->proc_get_unmapped_area; #ifdef CONFIG_MMU - if (!get_area) - get_area = current->mm->get_unmapped_area; + return mm_get_unmapped_area(current->mm, file, orig_addr, len, pgoff, flags); #endif - if (get_area) - return get_area(file, orig_addr, len, pgoff, flags); + return orig_addr; } diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c index 45af9a989d..245171d916 100644 --- a/fs/proc/meminfo.c +++ b/fs/proc/meminfo.c @@ -89,8 +89,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) show_val_kb(m, "SwapTotal: ", i.totalswap); show_val_kb(m, "SwapFree: ", i.freeswap); #ifdef CONFIG_ZSWAP - seq_printf(m, "Zswap: %8lu kB\n", - (unsigned long)(zswap_pool_total_size >> 10)); + show_val_kb(m, "Zswap: ", zswap_total_pages()); seq_printf(m, "Zswapped: %8lu kB\n", (unsigned long)atomic_read(&zswap_stored_pages) << (PAGE_SHIFT - 10)); diff --git a/fs/proc/page.c b/fs/proc/page.c index 9223856c93..2fb64bdb64 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -107,10 +107,13 @@ static inline u64 kpf_copy_bit(u64 kflags, int ubit, int kbit) return ((kflags >> kbit) & 1) << ubit; } -u64 stable_page_flags(struct page *page) +u64 stable_page_flags(const struct page *page) { - u64 k; - u64 u; + const struct folio *folio; + unsigned long k; + unsigned long mapping; + bool is_anon; + u64 u = 0; /* * pseudo flag: KPF_NOPAGE @@ -118,49 +121,47 @@ u64 stable_page_flags(struct page *page) */ if (!page) return 1 << KPF_NOPAGE; + folio = page_folio(page); - k = page->flags; - u = 0; + k = folio->flags; + mapping = (unsigned long)folio->mapping; + is_anon = mapping & PAGE_MAPPING_ANON; /* * pseudo flags for the well known (anonymous) memory mapped pages */ if (page_mapped(page)) u |= 1 << KPF_MMAP; - if (PageAnon(page)) + if (is_anon) { u |= 1 << KPF_ANON; - if (PageKsm(page)) - u |= 1 << KPF_KSM; + if (mapping & PAGE_MAPPING_KSM) + u |= 1 << KPF_KSM; + } /* * compound pages: export both head/tail info * they together define a compound page's start/end pos and order */ - if (PageHead(page)) - u |= 1 << KPF_COMPOUND_HEAD; - if (PageTail(page)) + if (page == &folio->page) + u |= kpf_copy_bit(k, KPF_COMPOUND_HEAD, PG_head); + else u |= 1 << KPF_COMPOUND_TAIL; - if (PageHuge(page)) + if (folio_test_hugetlb(folio)) u |= 1 << KPF_HUGE; /* - * PageTransCompound can be true for non-huge compound pages (slab - * pages or pages allocated by drivers with __GFP_COMP) because it - * just checks PG_head/PG_tail, so we need to check PageLRU/PageAnon + * We need to check PageLRU/PageAnon * to make sure a given page is a thp, not a non-huge compound page. */ - else if (PageTransCompound(page)) { - struct page *head = compound_head(page); - - if (PageLRU(head) || PageAnon(head)) + else if (folio_test_large(folio)) { + if ((k & (1 << PG_lru)) || is_anon) u |= 1 << KPF_THP; - else if (is_huge_zero_page(head)) { + else if (is_huge_zero_folio(folio)) { u |= 1 << KPF_ZERO_PAGE; u |= 1 << KPF_THP; } } else if (is_zero_pfn(page_to_pfn(page))) u |= 1 << KPF_ZERO_PAGE; - /* * Caveats on high order pages: PG_buddy and PG_slab will only be set * on the head page. @@ -174,16 +175,17 @@ u64 stable_page_flags(struct page *page) u |= 1 << KPF_OFFLINE; if (PageTable(page)) u |= 1 << KPF_PGTABLE; + if (folio_test_slab(folio)) + u |= 1 << KPF_SLAB; - if (page_is_idle(page)) +#if defined(CONFIG_PAGE_IDLE_FLAG) && defined(CONFIG_64BIT) + u |= kpf_copy_bit(k, KPF_IDLE, PG_idle); +#else + if (folio_test_idle(folio)) u |= 1 << KPF_IDLE; +#endif u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); - - u |= kpf_copy_bit(k, KPF_SLAB, PG_slab); - if (PageTail(page) && PageSlab(page)) - u |= 1 << KPF_SLAB; - u |= kpf_copy_bit(k, KPF_ERROR, PG_error); u |= kpf_copy_bit(k, KPF_DIRTY, PG_dirty); u |= kpf_copy_bit(k, KPF_UPTODATE, PG_uptodate); @@ -194,7 +196,8 @@ u64 stable_page_flags(struct page *page) u |= kpf_copy_bit(k, KPF_ACTIVE, PG_active); u |= kpf_copy_bit(k, KPF_RECLAIM, PG_reclaim); - if (PageSwapCache(page)) +#define SWAPCACHE ((1 << PG_swapbacked) | (1 << PG_swapcache)) + if ((k & SWAPCACHE) == SWAPCACHE) u |= 1 << KPF_SWAPCACHE; u |= kpf_copy_bit(k, KPF_SWAPBACKED, PG_swapbacked); @@ -202,7 +205,10 @@ u64 stable_page_flags(struct page *page) u |= kpf_copy_bit(k, KPF_MLOCKED, PG_mlocked); #ifdef CONFIG_MEMORY_FAILURE - u |= kpf_copy_bit(k, KPF_HWPOISON, PG_hwpoison); + if (u & (1 << KPF_HUGE)) + u |= kpf_copy_bit(k, KPF_HWPOISON, PG_hwpoison); + else + u |= kpf_copy_bit(page->flags, KPF_HWPOISON, PG_hwpoison); #endif #ifdef CONFIG_ARCH_USES_PG_UNCACHED @@ -228,7 +234,6 @@ static ssize_t kpageflags_read(struct file *file, char __user *buf, { const unsigned long max_dump_pfn = get_max_dump_pfn(); u64 __user *out = (u64 __user *)buf; - struct page *ppage; unsigned long src = *ppos; unsigned long pfn; ssize_t ret = 0; @@ -245,9 +250,9 @@ static ssize_t kpageflags_read(struct file *file, char __user *buf, * TODO: ZONE_DEVICE support requires to identify * memmaps that were actually initialized. */ - ppage = pfn_to_online_page(pfn); + struct page *page = pfn_to_online_page(pfn); - if (put_user(stable_page_flags(ppage), out)) { + if (put_user(stable_page_flags(page), out)) { ret = -EFAULT; break; } diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index 2ba31b6d68..52f0b75cbc 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -135,6 +135,7 @@ EXPORT_SYMBOL_GPL(proc_create_net_data); * @parent: The parent directory in which to create. * @ops: The seq_file ops with which to read the file. * @write: The write method with which to 'modify' the file. + * @state_size: The size of the per-file private state to allocate. * @data: Data for retrieval by pde_data(). * * Create a network namespaced proc file in the @parent directory with the diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 37cde0efee..dd7b462387 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -30,9 +30,7 @@ static const struct file_operations proc_sys_dir_file_operations; static const struct inode_operations proc_sys_dir_operations; /* Support for permanently empty directories */ -static struct ctl_table sysctl_mount_point[] = { - {.type = SYSCTL_TABLE_TYPE_PERMANENTLY_EMPTY } -}; +static struct ctl_table sysctl_mount_point[] = { }; /** * register_sysctl_mount_point() - registers a sysctl mount point @@ -48,14 +46,12 @@ struct ctl_table_header *register_sysctl_mount_point(const char *path) } EXPORT_SYMBOL(register_sysctl_mount_point); -#define sysctl_is_perm_empty_ctl_table(tptr) \ - (tptr[0].type == SYSCTL_TABLE_TYPE_PERMANENTLY_EMPTY) #define sysctl_is_perm_empty_ctl_header(hptr) \ - (sysctl_is_perm_empty_ctl_table(hptr->ctl_table)) + (hptr->type == SYSCTL_TABLE_TYPE_PERMANENTLY_EMPTY) #define sysctl_set_perm_empty_ctl_header(hptr) \ - (hptr->ctl_table[0].type = SYSCTL_TABLE_TYPE_PERMANENTLY_EMPTY) + (hptr->type = SYSCTL_TABLE_TYPE_PERMANENTLY_EMPTY) #define sysctl_clear_perm_empty_ctl_header(hptr) \ - (hptr->ctl_table[0].type = SYSCTL_TABLE_TYPE_DEFAULT) + (hptr->type = SYSCTL_TABLE_TYPE_DEFAULT) void proc_sys_poll_notify(struct ctl_table_poll *poll) { @@ -210,6 +206,8 @@ static void init_header(struct ctl_table_header *head, node++; } } + if (table == sysctl_mount_point) + sysctl_set_perm_empty_ctl_header(head); } static void erase_header(struct ctl_table_header *head) @@ -232,8 +230,7 @@ static int insert_header(struct ctl_dir *dir, struct ctl_table_header *header) return -EROFS; /* Am I creating a permanently empty directory? */ - if (header->ctl_table_size > 0 && - sysctl_is_perm_empty_ctl_table(header->ctl_table)) { + if (sysctl_is_perm_empty_ctl_header(header)) { if (!RB_EMPTY_ROOT(&dir->root)) return -EINVAL; sysctl_set_perm_empty_ctl_header(dir_h); @@ -479,12 +476,10 @@ static struct inode *proc_sys_make_inode(struct super_block *sb, make_empty_dir_inode(inode); } + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; if (root->set_ownership) - root->set_ownership(head, table, &inode->i_uid, &inode->i_gid); - else { - inode->i_uid = GLOBAL_ROOT_UID; - inode->i_gid = GLOBAL_ROOT_GID; - } + root->set_ownership(head, &inode->i_uid, &inode->i_gid); return inode; } @@ -1204,7 +1199,7 @@ static bool get_links(struct ctl_dir *dir, struct ctl_table *entry, *link; if (header->ctl_table_size == 0 || - sysctl_is_perm_empty_ctl_table(header->ctl_table)) + sysctl_is_perm_empty_ctl_header(header)) return true; /* Are there links available for every entry in table? */ diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index a097c9a652..a45f2da0ad 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -411,14 +411,14 @@ struct mem_size_stats { }; static void smaps_page_accumulate(struct mem_size_stats *mss, - struct page *page, unsigned long size, unsigned long pss, + struct folio *folio, unsigned long size, unsigned long pss, bool dirty, bool locked, bool private) { mss->pss += pss; - if (PageAnon(page)) + if (folio_test_anon(folio)) mss->pss_anon += pss; - else if (PageSwapBacked(page)) + else if (folio_test_swapbacked(folio)) mss->pss_shmem += pss; else mss->pss_file += pss; @@ -426,7 +426,7 @@ static void smaps_page_accumulate(struct mem_size_stats *mss, if (locked) mss->pss_locked += pss; - if (dirty || PageDirty(page)) { + if (dirty || folio_test_dirty(folio)) { mss->pss_dirty += pss; if (private) mss->private_dirty += size; @@ -444,6 +444,7 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page, bool compound, bool young, bool dirty, bool locked, bool migration) { + struct folio *folio = page_folio(page); int i, nr = compound ? compound_nr(page) : 1; unsigned long size = nr * PAGE_SIZE; @@ -451,27 +452,28 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page, * First accumulate quantities that depend only on |size| and the type * of the compound page. */ - if (PageAnon(page)) { + if (folio_test_anon(folio)) { mss->anonymous += size; - if (!PageSwapBacked(page) && !dirty && !PageDirty(page)) + if (!folio_test_swapbacked(folio) && !dirty && + !folio_test_dirty(folio)) mss->lazyfree += size; } - if (PageKsm(page)) + if (folio_test_ksm(folio)) mss->ksm += size; mss->resident += size; /* Accumulate the size in pages that have been accessed. */ - if (young || page_is_young(page) || PageReferenced(page)) + if (young || folio_test_young(folio) || folio_test_referenced(folio)) mss->referenced += size; /* * Then accumulate quantities that may depend on sharing, or that may * differ page-by-page. * - * page_count(page) == 1 guarantees the page is mapped exactly once. + * refcount == 1 guarantees the page is mapped exactly once. * If any subpage of the compound page mapped with PTE it would elevate - * page_count(). + * the refcount. * * The page_mapcount() is called to get a snapshot of the mapcount. * Without holding the page lock this snapshot can be slightly wrong as @@ -480,9 +482,9 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page, * especially for migration entries. Treat regular migration entries * as mapcount == 1. */ - if ((page_count(page) == 1) || migration) { - smaps_page_accumulate(mss, page, size, size << PSS_SHIFT, dirty, - locked, true); + if ((folio_ref_count(folio) == 1) || migration) { + smaps_page_accumulate(mss, folio, size, size << PSS_SHIFT, + dirty, locked, true); return; } for (i = 0; i < nr; i++, page++) { @@ -490,8 +492,8 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page, unsigned long pss = PAGE_SIZE << PSS_SHIFT; if (mapcount >= 2) pss /= mapcount; - smaps_page_accumulate(mss, page, PAGE_SIZE, pss, dirty, locked, - mapcount < 2); + smaps_page_accumulate(mss, folio, PAGE_SIZE, pss, + dirty, locked, mapcount < 2); } } @@ -576,6 +578,7 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, struct vm_area_struct *vma = walk->vma; bool locked = !!(vma->vm_flags & VM_LOCKED); struct page *page = NULL; + struct folio *folio; bool migration = false; if (pmd_present(*pmd)) { @@ -590,11 +593,12 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, } if (IS_ERR_OR_NULL(page)) return; - if (PageAnon(page)) + folio = page_folio(page); + if (folio_test_anon(folio)) mss->anonymous_thp += HPAGE_PMD_SIZE; - else if (PageSwapBacked(page)) + else if (folio_test_swapbacked(folio)) mss->shmem_thp += HPAGE_PMD_SIZE; - else if (is_zone_device_page(page)) + else if (folio_is_zone_device(folio)) /* pass */; else mss->file_thp += HPAGE_PMD_SIZE; @@ -703,6 +707,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) #ifdef CONFIG_X86_USER_SHADOW_STACK [ilog2(VM_SHADOW_STACK)] = "ss", #endif +#ifdef CONFIG_64BIT + [ilog2(VM_SEALED)] = "sl", +#endif }; size_t i; @@ -726,19 +733,20 @@ static int smaps_hugetlb_range(pte_t *pte, unsigned long hmask, { struct mem_size_stats *mss = walk->private; struct vm_area_struct *vma = walk->vma; - struct page *page = NULL; - pte_t ptent = ptep_get(pte); + pte_t ptent = huge_ptep_get(pte); + struct folio *folio = NULL; if (pte_present(ptent)) { - page = vm_normal_page(vma, addr, ptent); + folio = page_folio(pte_page(ptent)); } else if (is_swap_pte(ptent)) { swp_entry_t swpent = pte_to_swp_entry(ptent); if (is_pfn_swap_entry(swpent)) - page = pfn_swap_entry_to_page(swpent); + folio = pfn_swap_entry_folio(swpent); } - if (page) { - if (page_mapcount(page) >= 2 || hugetlb_pmd_shared(pte)) + if (folio) { + if (folio_likely_mapped_shared(folio) || + hugetlb_pmd_shared(pte)) mss->shared_hugetlb += huge_page_size(hstate_vma(vma)); else mss->private_hugetlb += huge_page_size(hstate_vma(vma)); @@ -866,8 +874,8 @@ static int show_smap(struct seq_file *m, void *v) __show_smap(m, &mss, false); seq_printf(m, "THPeligible: %8u\n", - !!thp_vma_allowable_orders(vma, vma->vm_flags, true, false, - true, THP_ORDERS_ALL)); + !!thp_vma_allowable_orders(vma, vma->vm_flags, + TVA_SMAPS | TVA_ENFORCE_SYSFS, THP_ORDERS_ALL)); if (arch_pkeys_enabled()) seq_printf(m, "ProtectionKey: %8u\n", vma_pkey(vma)); @@ -1166,7 +1174,7 @@ static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr, struct vm_area_struct *vma = walk->vma; pte_t *pte, ptent; spinlock_t *ptl; - struct page *page; + struct folio *folio; ptl = pmd_trans_huge_lock(pmd, vma); if (ptl) { @@ -1178,12 +1186,12 @@ static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr, if (!pmd_present(*pmd)) goto out; - page = pmd_page(*pmd); + folio = pmd_folio(*pmd); /* Clear accessed and referenced bits. */ pmdp_test_and_clear_young(vma, addr, pmd); - test_and_clear_page_young(page); - ClearPageReferenced(page); + folio_test_clear_young(folio); + folio_clear_referenced(folio); out: spin_unlock(ptl); return 0; @@ -1205,14 +1213,14 @@ out: if (!pte_present(ptent)) continue; - page = vm_normal_page(vma, addr, ptent); - if (!page) + folio = vm_normal_folio(vma, addr, ptent); + if (!folio) continue; /* Clear accessed and referenced bits. */ ptep_test_and_clear_young(vma, addr, pte); - test_and_clear_page_young(page); - ClearPageReferenced(page); + folio_test_clear_young(folio); + folio_clear_referenced(folio); } pte_unmap_unlock(pte - 1, ptl); cond_resched(); @@ -1410,7 +1418,6 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm, { u64 frame = 0, flags = 0; struct page *page = NULL; - bool migration = false; if (pte_present(pte)) { if (pm->show_pfn) @@ -1442,7 +1449,6 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm, (offset << MAX_SWAPFILES_SHIFT); } flags |= PM_SWAP; - migration = is_migration_entry(entry); if (is_pfn_swap_entry(entry)) page = pfn_swap_entry_to_page(entry); if (pte_marker_entry_uffd_wp(entry)) @@ -1451,7 +1457,7 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm, if (page && !PageAnon(page)) flags |= PM_FILE; - if (page && !migration && page_mapcount(page) == 1) + if (page && (flags & PM_PRESENT) && page_mapcount(page) == 1) flags |= PM_MMAP_EXCLUSIVE; if (vma->vm_flags & VM_SOFTDIRTY) flags |= PM_SOFT_DIRTY; @@ -1468,10 +1474,10 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end, pte_t *pte, *orig_pte; int err = 0; #ifdef CONFIG_TRANSPARENT_HUGEPAGE - bool migration = false; ptl = pmd_trans_huge_lock(pmdp, vma); if (ptl) { + unsigned int idx = (addr & ~PMD_MASK) >> PAGE_SHIFT; u64 flags = 0, frame = 0; pmd_t pmd = *pmdp; struct page *page = NULL; @@ -1488,8 +1494,7 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end, if (pmd_uffd_wp(pmd)) flags |= PM_UFFD_WP; if (pm->show_pfn) - frame = pmd_pfn(pmd) + - ((addr & ~PMD_MASK) >> PAGE_SHIFT); + frame = pmd_pfn(pmd) + idx; } #ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION else if (is_swap_pmd(pmd)) { @@ -1498,11 +1503,9 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end, if (pm->show_pfn) { if (is_pfn_swap_entry(entry)) - offset = swp_offset_pfn(entry); + offset = swp_offset_pfn(entry) + idx; else - offset = swp_offset(entry); - offset = offset + - ((addr & ~PMD_MASK) >> PAGE_SHIFT); + offset = swp_offset(entry) + idx; frame = swp_type(entry) | (offset << MAX_SWAPFILES_SHIFT); } @@ -1512,17 +1515,22 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end, if (pmd_swp_uffd_wp(pmd)) flags |= PM_UFFD_WP; VM_BUG_ON(!is_pmd_migration_entry(pmd)); - migration = is_migration_entry(entry); page = pfn_swap_entry_to_page(entry); } #endif - if (page && !migration && page_mapcount(page) == 1) - flags |= PM_MMAP_EXCLUSIVE; + if (page && !PageAnon(page)) + flags |= PM_FILE; + + for (; addr != end; addr += PAGE_SIZE, idx++) { + unsigned long cur_flags = flags; + pagemap_entry_t pme; - for (; addr != end; addr += PAGE_SIZE) { - pagemap_entry_t pme = make_pme(frame, flags); + if (page && (flags & PM_PRESENT) && + page_mapcount(page + idx) == 1) + cur_flags |= PM_MMAP_EXCLUSIVE; + pme = make_pme(frame, cur_flags); err = add_to_pagemap(&pme, pm); if (err) break; @@ -1579,12 +1587,13 @@ static int pagemap_hugetlb_range(pte_t *ptep, unsigned long hmask, pte = huge_ptep_get(ptep); if (pte_present(pte)) { - struct page *page = pte_page(pte); + struct folio *folio = page_folio(pte_page(pte)); - if (!PageAnon(page)) + if (!folio_test_anon(folio)) flags |= PM_FILE; - if (page_mapcount(page) == 1) + if (!folio_likely_mapped_shared(folio) && + !hugetlb_pmd_shared(ptep)) flags |= PM_MMAP_EXCLUSIVE; if (huge_pte_uffd_wp(pte)) @@ -2556,28 +2565,29 @@ struct numa_maps_private { static void gather_stats(struct page *page, struct numa_maps *md, int pte_dirty, unsigned long nr_pages) { + struct folio *folio = page_folio(page); int count = page_mapcount(page); md->pages += nr_pages; - if (pte_dirty || PageDirty(page)) + if (pte_dirty || folio_test_dirty(folio)) md->dirty += nr_pages; - if (PageSwapCache(page)) + if (folio_test_swapcache(folio)) md->swapcache += nr_pages; - if (PageActive(page) || PageUnevictable(page)) + if (folio_test_active(folio) || folio_test_unevictable(folio)) md->active += nr_pages; - if (PageWriteback(page)) + if (folio_test_writeback(folio)) md->writeback += nr_pages; - if (PageAnon(page)) + if (folio_test_anon(folio)) md->anon += nr_pages; if (count > md->mapcount_max) md->mapcount_max = count; - md->node[page_to_nid(page)] += nr_pages; + md->node[folio_nid(folio)] += nr_pages; } static struct page *can_gather_numa_stats(pte_t pte, struct vm_area_struct *vma, diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index d06607a1f1..b52d85f8ad 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -1372,9 +1372,8 @@ static void vmcoredd_write_header(void *buf, struct vmcoredd_data *data, vdd_hdr->n_descsz = size + sizeof(vdd_hdr->dump_name); vdd_hdr->n_type = NT_VMCOREDD; - strncpy((char *)vdd_hdr->name, VMCOREDD_NOTE_NAME, - sizeof(vdd_hdr->name)); - memcpy(vdd_hdr->dump_name, data->dump_name, sizeof(vdd_hdr->dump_name)); + strscpy_pad(vdd_hdr->name, VMCOREDD_NOTE_NAME); + strscpy_pad(vdd_hdr->dump_name, data->dump_name); } /** |