Lines Matching refs:page
125 struct page *page, void *shadow) in page_cache_delete() argument
127 XA_STATE(xas, &mapping->i_pages, page->index); in page_cache_delete()
133 if (!PageHuge(page)) { in page_cache_delete()
134 xas_set_order(&xas, page->index, compound_order(page)); in page_cache_delete()
135 nr = compound_nr(page); in page_cache_delete()
138 VM_BUG_ON_PAGE(!PageLocked(page), page); in page_cache_delete()
139 VM_BUG_ON_PAGE(PageTail(page), page); in page_cache_delete()
140 VM_BUG_ON_PAGE(nr != 1 && shadow, page); in page_cache_delete()
145 page->mapping = NULL; in page_cache_delete()
151 struct page *page) in unaccount_page_cache_page() argument
160 if (PageUptodate(page) && PageMappedToDisk(page)) in unaccount_page_cache_page()
161 cleancache_put_page(page); in unaccount_page_cache_page()
163 cleancache_invalidate_page(mapping, page); in unaccount_page_cache_page()
165 VM_BUG_ON_PAGE(PageTail(page), page); in unaccount_page_cache_page()
166 VM_BUG_ON_PAGE(page_mapped(page), page); in unaccount_page_cache_page()
167 if (!IS_ENABLED(CONFIG_DEBUG_VM) && unlikely(page_mapped(page))) { in unaccount_page_cache_page()
171 current->comm, page_to_pfn(page)); in unaccount_page_cache_page()
172 dump_page(page, "still mapped when deleted"); in unaccount_page_cache_page()
176 mapcount = page_mapcount(page); in unaccount_page_cache_page()
178 page_count(page) >= mapcount + 2) { in unaccount_page_cache_page()
185 page_mapcount_reset(page); in unaccount_page_cache_page()
186 page_ref_sub(page, mapcount); in unaccount_page_cache_page()
191 if (PageHuge(page)) in unaccount_page_cache_page()
194 nr = thp_nr_pages(page); in unaccount_page_cache_page()
196 __mod_lruvec_page_state(page, NR_FILE_PAGES, -nr); in unaccount_page_cache_page()
197 if (PageSwapBacked(page)) { in unaccount_page_cache_page()
198 __mod_lruvec_page_state(page, NR_SHMEM, -nr); in unaccount_page_cache_page()
199 if (PageTransHuge(page)) in unaccount_page_cache_page()
200 __mod_lruvec_page_state(page, NR_SHMEM_THPS, -nr); in unaccount_page_cache_page()
201 } else if (PageTransHuge(page)) { in unaccount_page_cache_page()
202 __mod_lruvec_page_state(page, NR_FILE_THPS, -nr); in unaccount_page_cache_page()
216 if (WARN_ON_ONCE(PageDirty(page))) in unaccount_page_cache_page()
217 account_page_cleaned(page, mapping, inode_to_wb(mapping->host)); in unaccount_page_cache_page()
225 void __delete_from_page_cache(struct page *page, void *shadow) in __delete_from_page_cache() argument
227 struct address_space *mapping = page->mapping; in __delete_from_page_cache()
229 trace_mm_filemap_delete_from_page_cache(page); in __delete_from_page_cache()
231 unaccount_page_cache_page(mapping, page); in __delete_from_page_cache()
232 page_cache_delete(mapping, page, shadow); in __delete_from_page_cache()
236 struct page *page) in page_cache_free_page() argument
238 void (*freepage)(struct page *); in page_cache_free_page()
242 freepage(page); in page_cache_free_page()
244 if (PageTransHuge(page) && !PageHuge(page)) { in page_cache_free_page()
245 page_ref_sub(page, thp_nr_pages(page)); in page_cache_free_page()
246 VM_BUG_ON_PAGE(page_count(page) <= 0, page); in page_cache_free_page()
248 put_page(page); in page_cache_free_page()
260 void delete_from_page_cache(struct page *page) in delete_from_page_cache() argument
262 struct address_space *mapping = page_mapping(page); in delete_from_page_cache()
264 BUG_ON(!PageLocked(page)); in delete_from_page_cache()
266 __delete_from_page_cache(page, NULL); in delete_from_page_cache()
269 page_cache_free_page(mapping, page); in delete_from_page_cache()
293 struct page *page; in page_cache_delete_batch() local
296 xas_for_each(&xas, page, ULONG_MAX) { in page_cache_delete_batch()
301 if (xa_is_value(page)) in page_cache_delete_batch()
310 if (page != pvec->pages[i]) { in page_cache_delete_batch()
311 VM_BUG_ON_PAGE(page->index > pvec->pages[i]->index, in page_cache_delete_batch()
312 page); in page_cache_delete_batch()
316 WARN_ON_ONCE(!PageLocked(page)); in page_cache_delete_batch()
318 if (page->index == xas.xa_index) in page_cache_delete_batch()
319 page->mapping = NULL; in page_cache_delete_batch()
327 if (page->index + compound_nr(page) - 1 == xas.xa_index) in page_cache_delete_batch()
485 struct page *page; in filemap_range_has_page() local
494 page = xas_find(&xas, max); in filemap_range_has_page()
495 if (xas_retry(&xas, page)) in filemap_range_has_page()
498 if (xa_is_value(page)) in filemap_range_has_page()
509 return page != NULL; in filemap_range_has_page()
534 struct page *page = pvec.pages[i]; in __filemap_fdatawait_range() local
536 wait_on_page_writeback(page); in __filemap_fdatawait_range()
537 ClearPageError(page); in __filemap_fdatawait_range()
661 struct page *page; in filemap_range_needs_writeback() local
672 xas_for_each(&xas, page, max) { in filemap_range_needs_writeback()
673 if (xas_retry(&xas, page)) in filemap_range_needs_writeback()
675 if (xa_is_value(page)) in filemap_range_needs_writeback()
677 if (PageDirty(page) || PageLocked(page) || PageWriteback(page)) in filemap_range_needs_writeback()
681 return page != NULL; in filemap_range_needs_writeback()
836 void replace_page_cache_page(struct page *old, struct page *new) in replace_page_cache_page()
839 void (*freepage)(struct page *) = mapping->a_ops->freepage; in replace_page_cache_page()
873 noinline int __add_to_page_cache_locked(struct page *page, in __add_to_page_cache_locked() argument
879 int huge = PageHuge(page); in __add_to_page_cache_locked()
883 VM_BUG_ON_PAGE(!PageLocked(page), page); in __add_to_page_cache_locked()
884 VM_BUG_ON_PAGE(PageSwapBacked(page), page); in __add_to_page_cache_locked()
887 get_page(page); in __add_to_page_cache_locked()
888 page->mapping = mapping; in __add_to_page_cache_locked()
889 page->index = offset; in __add_to_page_cache_locked()
892 error = mem_cgroup_charge(page, NULL, gfp); in __add_to_page_cache_locked()
904 if (order > thp_order(page)) in __add_to_page_cache_locked()
921 if (order > thp_order(page)) { in __add_to_page_cache_locked()
927 xas_store(&xas, page); in __add_to_page_cache_locked()
935 __inc_lruvec_page_state(page, NR_FILE_PAGES); in __add_to_page_cache_locked()
943 mem_cgroup_uncharge(page); in __add_to_page_cache_locked()
947 trace_mm_filemap_add_to_page_cache(page); in __add_to_page_cache_locked()
950 page->mapping = NULL; in __add_to_page_cache_locked()
952 put_page(page); in __add_to_page_cache_locked()
969 int add_to_page_cache_locked(struct page *page, struct address_space *mapping, in add_to_page_cache_locked() argument
972 return __add_to_page_cache_locked(page, mapping, offset, in add_to_page_cache_locked()
977 int add_to_page_cache_lru(struct page *page, struct address_space *mapping, in add_to_page_cache_lru() argument
983 __SetPageLocked(page); in add_to_page_cache_lru()
984 ret = __add_to_page_cache_locked(page, mapping, offset, in add_to_page_cache_lru()
987 __ClearPageLocked(page); in add_to_page_cache_lru()
997 WARN_ON_ONCE(PageActive(page)); in add_to_page_cache_lru()
999 workingset_refault(page, shadow); in add_to_page_cache_lru()
1000 lru_cache_add(page); in add_to_page_cache_lru()
1007 struct page *__page_cache_alloc(gfp_t gfp) in __page_cache_alloc()
1010 struct page *page; in __page_cache_alloc() local
1017 page = __alloc_pages_node(n, gfp, 0); in __page_cache_alloc()
1018 } while (!page && read_mems_allowed_retry(cpuset_mems_cookie)); in __page_cache_alloc()
1020 return page; in __page_cache_alloc()
1079 static wait_queue_head_t *page_waitqueue(struct page *page) in page_waitqueue() argument
1081 return &page_wait_table[hash_ptr(page, PAGE_WAIT_TABLE_BITS)]; in page_waitqueue()
1144 if (test_bit(key->bit_nr, &key->page->flags)) in wake_page_function()
1147 if (test_and_set_bit(key->bit_nr, &key->page->flags)) in wake_page_function()
1179 static void wake_up_page_bit(struct page *page, int bit_nr) in wake_up_page_bit() argument
1181 wait_queue_head_t *q = page_waitqueue(page); in wake_up_page_bit()
1186 key.page = page; in wake_up_page_bit()
1221 ClearPageWaiters(page); in wake_up_page_bit()
1233 static void wake_up_page(struct page *page, int bit) in wake_up_page() argument
1235 if (!PageWaiters(page)) in wake_up_page()
1237 wake_up_page_bit(page, bit); in wake_up_page()
1259 static inline bool trylock_page_bit_common(struct page *page, int bit_nr, in trylock_page_bit_common() argument
1263 if (test_and_set_bit(bit_nr, &page->flags)) in trylock_page_bit_common()
1265 } else if (test_bit(bit_nr, &page->flags)) in trylock_page_bit_common()
1276 struct page *page, int bit_nr, int state, enum behavior behavior) in wait_on_page_bit_common() argument
1286 !PageUptodate(page) && PageWorkingset(page)) { in wait_on_page_bit_common()
1287 if (!PageSwapBacked(page)) { in wait_on_page_bit_common()
1297 wait_page.page = page; in wait_on_page_bit_common()
1323 SetPageWaiters(page); in wait_on_page_bit_common()
1324 if (!trylock_page_bit_common(page, bit_nr, wait)) in wait_on_page_bit_common()
1337 put_page(page); in wait_on_page_bit_common()
1374 if (unlikely(test_and_set_bit(bit_nr, &page->flags))) in wait_on_page_bit_common()
1414 void wait_on_page_bit(struct page *page, int bit_nr) in wait_on_page_bit() argument
1416 wait_queue_head_t *q = page_waitqueue(page); in wait_on_page_bit()
1417 wait_on_page_bit_common(q, page, bit_nr, TASK_UNINTERRUPTIBLE, SHARED); in wait_on_page_bit()
1421 int wait_on_page_bit_killable(struct page *page, int bit_nr) in wait_on_page_bit_killable() argument
1423 wait_queue_head_t *q = page_waitqueue(page); in wait_on_page_bit_killable()
1424 return wait_on_page_bit_common(q, page, bit_nr, TASK_KILLABLE, SHARED); in wait_on_page_bit_killable()
1441 int put_and_wait_on_page_locked(struct page *page, int state) in put_and_wait_on_page_locked() argument
1445 page = compound_head(page); in put_and_wait_on_page_locked()
1446 q = page_waitqueue(page); in put_and_wait_on_page_locked()
1447 return wait_on_page_bit_common(q, page, PG_locked, state, DROP); in put_and_wait_on_page_locked()
1457 void add_page_wait_queue(struct page *page, wait_queue_entry_t *waiter) in add_page_wait_queue() argument
1459 wait_queue_head_t *q = page_waitqueue(page); in add_page_wait_queue()
1464 SetPageWaiters(page); in add_page_wait_queue()
1507 void unlock_page(struct page *page) in unlock_page() argument
1510 page = compound_head(page); in unlock_page()
1511 VM_BUG_ON_PAGE(!PageLocked(page), page); in unlock_page()
1512 if (clear_bit_unlock_is_negative_byte(PG_locked, &page->flags)) in unlock_page()
1513 wake_up_page_bit(page, PG_locked); in unlock_page()
1528 void end_page_private_2(struct page *page) in end_page_private_2() argument
1530 page = compound_head(page); in end_page_private_2()
1531 VM_BUG_ON_PAGE(!PagePrivate2(page), page); in end_page_private_2()
1532 clear_bit_unlock(PG_private_2, &page->flags); in end_page_private_2()
1533 wake_up_page_bit(page, PG_private_2); in end_page_private_2()
1534 put_page(page); in end_page_private_2()
1544 void wait_on_page_private_2(struct page *page) in wait_on_page_private_2() argument
1546 page = compound_head(page); in wait_on_page_private_2()
1547 while (PagePrivate2(page)) in wait_on_page_private_2()
1548 wait_on_page_bit(page, PG_private_2); in wait_on_page_private_2()
1563 int wait_on_page_private_2_killable(struct page *page) in wait_on_page_private_2_killable() argument
1567 page = compound_head(page); in wait_on_page_private_2_killable()
1568 while (PagePrivate2(page)) { in wait_on_page_private_2_killable()
1569 ret = wait_on_page_bit_killable(page, PG_private_2); in wait_on_page_private_2_killable()
1582 void end_page_writeback(struct page *page) in end_page_writeback() argument
1591 if (PageReclaim(page)) { in end_page_writeback()
1592 ClearPageReclaim(page); in end_page_writeback()
1593 rotate_reclaimable_page(page); in end_page_writeback()
1602 get_page(page); in end_page_writeback()
1603 if (!test_clear_page_writeback(page)) in end_page_writeback()
1607 wake_up_page(page, PG_writeback); in end_page_writeback()
1608 put_page(page); in end_page_writeback()
1616 void page_endio(struct page *page, bool is_write, int err) in page_endio() argument
1620 SetPageUptodate(page); in page_endio()
1622 ClearPageUptodate(page); in page_endio()
1623 SetPageError(page); in page_endio()
1625 unlock_page(page); in page_endio()
1630 SetPageError(page); in page_endio()
1631 mapping = page_mapping(page); in page_endio()
1635 end_page_writeback(page); in page_endio()
1644 void __lock_page(struct page *__page) in __lock_page()
1646 struct page *page = compound_head(__page); in __lock_page() local
1647 wait_queue_head_t *q = page_waitqueue(page); in __lock_page()
1648 wait_on_page_bit_common(q, page, PG_locked, TASK_UNINTERRUPTIBLE, in __lock_page()
1653 int __lock_page_killable(struct page *__page) in __lock_page_killable()
1655 struct page *page = compound_head(__page); in __lock_page_killable() local
1656 wait_queue_head_t *q = page_waitqueue(page); in __lock_page_killable()
1657 return wait_on_page_bit_common(q, page, PG_locked, TASK_KILLABLE, in __lock_page_killable()
1662 int __lock_page_async(struct page *page, struct wait_page_queue *wait) in __lock_page_async() argument
1664 struct wait_queue_head *q = page_waitqueue(page); in __lock_page_async()
1667 wait->page = page; in __lock_page_async()
1672 SetPageWaiters(page); in __lock_page_async()
1673 ret = !trylock_page(page); in __lock_page_async()
1699 int __lock_page_or_retry(struct page *page, struct mm_struct *mm, in __lock_page_or_retry() argument
1712 wait_on_page_locked_killable(page); in __lock_page_or_retry()
1714 wait_on_page_locked(page); in __lock_page_or_retry()
1720 ret = __lock_page_killable(page); in __lock_page_or_retry()
1726 __lock_page(page); in __lock_page_or_retry()
1817 static struct page *mapping_get_entry(struct address_space *mapping, in mapping_get_entry()
1821 struct page *page; in mapping_get_entry() local
1826 page = xas_load(&xas); in mapping_get_entry()
1827 if (xas_retry(&xas, page)) in mapping_get_entry()
1833 if (!page || xa_is_value(page)) in mapping_get_entry()
1836 if (!page_cache_get_speculative(page)) in mapping_get_entry()
1844 if (unlikely(page != xas_reload(&xas))) { in mapping_get_entry()
1845 put_page(page); in mapping_get_entry()
1851 return page; in mapping_get_entry()
1888 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index, in pagecache_get_page()
1891 struct page *page; in pagecache_get_page() local
1894 page = mapping_get_entry(mapping, index); in pagecache_get_page()
1895 if (xa_is_value(page)) { in pagecache_get_page()
1897 return page; in pagecache_get_page()
1898 page = NULL; in pagecache_get_page()
1900 if (!page) in pagecache_get_page()
1905 if (!trylock_page(page)) { in pagecache_get_page()
1906 put_page(page); in pagecache_get_page()
1910 lock_page(page); in pagecache_get_page()
1914 if (unlikely(page->mapping != mapping)) { in pagecache_get_page()
1915 unlock_page(page); in pagecache_get_page()
1916 put_page(page); in pagecache_get_page()
1919 VM_BUG_ON_PAGE(!thp_contains(page, index), page); in pagecache_get_page()
1923 mark_page_accessed(page); in pagecache_get_page()
1926 if (page_is_idle(page)) in pagecache_get_page()
1927 clear_page_idle(page); in pagecache_get_page()
1930 page = find_subpage(page, index); in pagecache_get_page()
1933 if (!page && (fgp_flags & FGP_CREAT)) { in pagecache_get_page()
1940 page = __page_cache_alloc(gfp_mask); in pagecache_get_page()
1941 if (!page) in pagecache_get_page()
1949 __SetPageReferenced(page); in pagecache_get_page()
1951 err = add_to_page_cache_lru(page, mapping, index, gfp_mask); in pagecache_get_page()
1953 put_page(page); in pagecache_get_page()
1954 page = NULL; in pagecache_get_page()
1963 if (page && (fgp_flags & FGP_FOR_MMAP)) in pagecache_get_page()
1964 unlock_page(page); in pagecache_get_page()
1967 return page; in pagecache_get_page()
1971 static inline struct page *find_get_entry(struct xa_state *xas, pgoff_t max, in find_get_entry()
1974 struct page *page; in find_get_entry() local
1978 page = xas_find(xas, max); in find_get_entry()
1980 page = xas_find_marked(xas, max, mark); in find_get_entry()
1982 if (xas_retry(xas, page)) in find_get_entry()
1989 if (!page || xa_is_value(page)) in find_get_entry()
1990 return page; in find_get_entry()
1992 if (!page_cache_get_speculative(page)) in find_get_entry()
1996 if (unlikely(page != xas_reload(xas))) { in find_get_entry()
1997 put_page(page); in find_get_entry()
2001 return page; in find_get_entry()
2037 struct page *page; in find_get_entries() local
2042 while ((page = find_get_entry(&xas, end, XA_PRESENT))) { in find_get_entries()
2047 if (!xa_is_value(page) && PageTransHuge(page) && in find_get_entries()
2048 !PageHuge(page)) { in find_get_entries()
2049 page = find_subpage(page, xas.xa_index); in find_get_entries()
2054 pvec->pages[ret] = page; in find_get_entries()
2089 struct page *page; in find_lock_entries() local
2092 while ((page = find_get_entry(&xas, end, XA_PRESENT))) { in find_lock_entries()
2093 if (!xa_is_value(page)) { in find_lock_entries()
2094 if (page->index < start) in find_lock_entries()
2096 VM_BUG_ON_PAGE(page->index != xas.xa_index, page); in find_lock_entries()
2097 if (page->index + thp_nr_pages(page) - 1 > end) in find_lock_entries()
2099 if (!trylock_page(page)) in find_lock_entries()
2101 if (page->mapping != mapping || PageWriteback(page)) in find_lock_entries()
2103 VM_BUG_ON_PAGE(!thp_contains(page, xas.xa_index), in find_lock_entries()
2104 page); in find_lock_entries()
2107 if (!pagevec_add(pvec, page)) in find_lock_entries()
2111 unlock_page(page); in find_lock_entries()
2113 put_page(page); in find_lock_entries()
2115 if (!xa_is_value(page) && PageTransHuge(page)) { in find_lock_entries()
2116 unsigned int nr_pages = thp_nr_pages(page); in find_lock_entries()
2119 xas_set(&xas, page->index + nr_pages); in find_lock_entries()
2152 struct page **pages) in find_get_pages_range()
2155 struct page *page; in find_get_pages_range() local
2162 while ((page = find_get_entry(&xas, end, XA_PRESENT))) { in find_get_pages_range()
2164 if (xa_is_value(page)) in find_get_pages_range()
2167 pages[ret] = find_subpage(page, xas.xa_index); in find_get_pages_range()
2203 unsigned int nr_pages, struct page **pages) in find_get_pages_contig()
2206 struct page *page; in find_get_pages_contig() local
2213 for (page = xas_load(&xas); page; page = xas_next(&xas)) { in find_get_pages_contig()
2214 if (xas_retry(&xas, page)) in find_get_pages_contig()
2220 if (xa_is_value(page)) in find_get_pages_contig()
2223 if (!page_cache_get_speculative(page)) in find_get_pages_contig()
2227 if (unlikely(page != xas_reload(&xas))) in find_get_pages_contig()
2230 pages[ret] = find_subpage(page, xas.xa_index); in find_get_pages_contig()
2235 put_page(page); in find_get_pages_contig()
2261 struct page **pages) in find_get_pages_range_tag()
2264 struct page *page; in find_get_pages_range_tag() local
2271 while ((page = find_get_entry(&xas, end, tag))) { in find_get_pages_range_tag()
2277 if (xa_is_value(page)) in find_get_pages_range_tag()
2280 pages[ret] = page; in find_get_pages_range_tag()
2282 *index = page->index + thp_nr_pages(page); in find_get_pages_range_tag()
2337 struct page *head; in filemap_get_read_batch()
2370 struct page *page) in filemap_read_page() argument
2379 ClearPageError(page); in filemap_read_page()
2381 error = mapping->a_ops->readpage(file, page); in filemap_read_page()
2385 error = wait_on_page_locked_killable(page); in filemap_read_page()
2388 if (PageUptodate(page)) in filemap_read_page()
2395 loff_t pos, struct iov_iter *iter, struct page *page) in filemap_range_uptodate() argument
2399 if (PageUptodate(page)) in filemap_range_uptodate()
2406 if (mapping->host->i_blkbits >= (PAGE_SHIFT + thp_order(page))) in filemap_range_uptodate()
2410 if (page_offset(page) > pos) { in filemap_range_uptodate()
2411 count -= page_offset(page) - pos; in filemap_range_uptodate()
2414 pos -= page_offset(page); in filemap_range_uptodate()
2417 return mapping->a_ops->is_partially_uptodate(page, pos, count); in filemap_range_uptodate()
2422 struct page *page) in filemap_update_page() argument
2433 if (!trylock_page(page)) { in filemap_update_page()
2439 put_and_wait_on_page_locked(page, TASK_KILLABLE); in filemap_update_page()
2442 error = __lock_page_async(page, iocb->ki_waitq); in filemap_update_page()
2448 if (!page->mapping) in filemap_update_page()
2452 if (filemap_range_uptodate(mapping, iocb->ki_pos, iter, page)) in filemap_update_page()
2459 error = filemap_read_page(iocb->ki_filp, mapping, page); in filemap_update_page()
2462 unlock_page(page); in filemap_update_page()
2466 put_page(page); in filemap_update_page()
2474 struct page *page; in filemap_create_page() local
2477 page = page_cache_alloc(mapping); in filemap_create_page()
2478 if (!page) in filemap_create_page()
2494 error = add_to_page_cache_lru(page, mapping, index, in filemap_create_page()
2501 error = filemap_read_page(file, mapping, page); in filemap_create_page()
2506 pagevec_add(pvec, page); in filemap_create_page()
2510 put_page(page); in filemap_create_page()
2515 struct address_space *mapping, struct page *page, in filemap_readahead() argument
2520 page_cache_async_readahead(mapping, &file->f_ra, file, page, in filemap_readahead()
2521 page->index, last_index - page->index); in filemap_readahead()
2533 struct page *page; in filemap_get_pages() local
2559 page = pvec->pages[pagevec_count(pvec) - 1]; in filemap_get_pages()
2560 if (PageReadahead(page)) { in filemap_get_pages()
2561 err = filemap_readahead(iocb, filp, mapping, page, last_index); in filemap_get_pages()
2565 if (!PageUptodate(page)) { in filemap_get_pages()
2568 err = filemap_update_page(iocb, mapping, iter, page); in filemap_get_pages()
2576 put_page(page); in filemap_get_pages()
2660 struct page *page = pvec.pages[i]; in filemap_read() local
2661 size_t page_size = thp_size(page); in filemap_read()
2667 if (end_offset < page_offset(page)) in filemap_read()
2670 mark_page_accessed(page); in filemap_read()
2679 for (j = 0; j < thp_nr_pages(page); j++) in filemap_read()
2680 flush_dcache_page(page + j); in filemap_read()
2683 copied = copy_page_to_iter(page, offset, bytes, iter); in filemap_read()
2784 struct address_space *mapping, struct page *page, in page_seek_hole_data() argument
2790 if (xa_is_value(page) || PageUptodate(page)) in page_seek_hole_data()
2797 lock_page(page); in page_seek_hole_data()
2798 if (unlikely(page->mapping != mapping)) in page_seek_hole_data()
2801 offset = offset_in_thp(page, start) & ~(bsz - 1); in page_seek_hole_data()
2804 if (ops->is_partially_uptodate(page, offset, bsz) == seek_data) in page_seek_hole_data()
2808 } while (offset < thp_size(page)); in page_seek_hole_data()
2810 unlock_page(page); in page_seek_hole_data()
2816 unsigned int seek_page_size(struct xa_state *xas, struct page *page) in seek_page_size() argument
2818 if (xa_is_value(page)) in seek_page_size()
2820 return thp_size(page); in seek_page_size()
2847 struct page *page; in mapping_seek_hole_data() local
2853 while ((page = find_get_entry(&xas, max, XA_PRESENT))) { in mapping_seek_hole_data()
2863 seek_size = seek_page_size(&xas, page); in mapping_seek_hole_data()
2865 start = page_seek_hole_data(&xas, mapping, page, start, pos, in mapping_seek_hole_data()
2873 if (!xa_is_value(page)) in mapping_seek_hole_data()
2874 put_page(page); in mapping_seek_hole_data()
2880 if (page && !xa_is_value(page)) in mapping_seek_hole_data()
2881 put_page(page); in mapping_seek_hole_data()
2900 static int lock_page_maybe_drop_mmap(struct vm_fault *vmf, struct page *page, in lock_page_maybe_drop_mmap() argument
2903 if (trylock_page(page)) in lock_page_maybe_drop_mmap()
2916 if (__lock_page_killable(page)) { in lock_page_maybe_drop_mmap()
2928 __lock_page(page); in lock_page_maybe_drop_mmap()
2991 struct page *page) in do_async_mmap_readahead() argument
3006 if (PageReadahead(page)) { in do_async_mmap_readahead()
3009 page, offset, ra->ra_pages); in do_async_mmap_readahead()
3046 struct page *page; in filemap_fault() local
3057 page = find_get_page(mapping, offset); in filemap_fault()
3058 if (likely(page)) { in filemap_fault()
3064 fpin = do_async_mmap_readahead(vmf, page); in filemap_fault()
3065 if (unlikely(!PageUptodate(page))) { in filemap_fault()
3084 page = pagecache_get_page(mapping, offset, in filemap_fault()
3087 if (!page) { in filemap_fault()
3095 if (!lock_page_maybe_drop_mmap(vmf, page, &fpin)) in filemap_fault()
3099 if (unlikely(compound_head(page)->mapping != mapping)) { in filemap_fault()
3100 unlock_page(page); in filemap_fault()
3101 put_page(page); in filemap_fault()
3104 VM_BUG_ON_PAGE(page_to_pgoff(page) != offset, page); in filemap_fault()
3110 if (unlikely(!PageUptodate(page))) { in filemap_fault()
3118 unlock_page(page); in filemap_fault()
3119 put_page(page); in filemap_fault()
3131 unlock_page(page); in filemap_fault()
3143 unlock_page(page); in filemap_fault()
3144 put_page(page); in filemap_fault()
3148 vmf->page = page; in filemap_fault()
3159 error = filemap_read_page(file, mapping, page); in filemap_fault()
3162 put_page(page); in filemap_fault()
3176 if (page) in filemap_fault()
3177 put_page(page); in filemap_fault()
3186 static bool filemap_map_pmd(struct vm_fault *vmf, struct page *page) in filemap_map_pmd() argument
3192 unlock_page(page); in filemap_map_pmd()
3193 put_page(page); in filemap_map_pmd()
3197 if (pmd_none(*vmf->pmd) && PageTransHuge(page)) { in filemap_map_pmd()
3198 vm_fault_t ret = do_set_pmd(vmf, page); in filemap_map_pmd()
3201 unlock_page(page); in filemap_map_pmd()
3218 unlock_page(page); in filemap_map_pmd()
3219 put_page(page); in filemap_map_pmd()
3226 static struct page *next_uptodate_page(struct page *page, in next_uptodate_page() argument
3233 if (!page) in next_uptodate_page()
3235 if (xas_retry(xas, page)) in next_uptodate_page()
3237 if (xa_is_value(page)) in next_uptodate_page()
3239 if (PageLocked(page)) in next_uptodate_page()
3241 if (!page_cache_get_speculative(page)) in next_uptodate_page()
3244 if (unlikely(page != xas_reload(xas))) in next_uptodate_page()
3246 if (!PageUptodate(page) || PageReadahead(page)) in next_uptodate_page()
3248 if (PageHWPoison(page)) in next_uptodate_page()
3250 if (!trylock_page(page)) in next_uptodate_page()
3252 if (page->mapping != mapping) in next_uptodate_page()
3254 if (!PageUptodate(page)) in next_uptodate_page()
3259 return page; in next_uptodate_page()
3261 unlock_page(page); in next_uptodate_page()
3263 put_page(page); in next_uptodate_page()
3264 } while ((page = xas_next_entry(xas, end_pgoff)) != NULL); in next_uptodate_page()
3269 static inline struct page *first_map_page(struct address_space *mapping, in first_map_page()
3277 static inline struct page *next_map_page(struct address_space *mapping, in next_map_page()
3294 struct page *head, *page; in filemap_map_pages() local
3311 page = find_subpage(head, xas.xa_index); in filemap_map_pages()
3312 if (PageHWPoison(page)) in filemap_map_pages()
3329 do_set_pte(vmf, page, addr); in filemap_map_pages()
3349 struct page *page = vmf->page; in filemap_page_mkwrite() local
3354 lock_page(page); in filemap_page_mkwrite()
3355 if (page->mapping != mapping) { in filemap_page_mkwrite()
3356 unlock_page(page); in filemap_page_mkwrite()
3365 set_page_dirty(page); in filemap_page_mkwrite()
3366 wait_for_stable_page(page); in filemap_page_mkwrite()
3419 static struct page *wait_on_page_read(struct page *page) in wait_on_page_read() argument
3421 if (!IS_ERR(page)) { in wait_on_page_read()
3422 wait_on_page_locked(page); in wait_on_page_read()
3423 if (!PageUptodate(page)) { in wait_on_page_read()
3424 put_page(page); in wait_on_page_read()
3425 page = ERR_PTR(-EIO); in wait_on_page_read()
3428 return page; in wait_on_page_read()
3431 static struct page *do_read_cache_page(struct address_space *mapping, in do_read_cache_page()
3433 int (*filler)(void *, struct page *), in do_read_cache_page() argument
3437 struct page *page; in do_read_cache_page() local
3440 page = find_get_page(mapping, index); in do_read_cache_page()
3441 if (!page) { in do_read_cache_page()
3442 page = __page_cache_alloc(gfp); in do_read_cache_page()
3443 if (!page) in do_read_cache_page()
3445 err = add_to_page_cache_lru(page, mapping, index, gfp); in do_read_cache_page()
3447 put_page(page); in do_read_cache_page()
3456 err = filler(data, page); in do_read_cache_page()
3458 err = mapping->a_ops->readpage(data, page); in do_read_cache_page()
3461 put_page(page); in do_read_cache_page()
3465 page = wait_on_page_read(page); in do_read_cache_page()
3466 if (IS_ERR(page)) in do_read_cache_page()
3467 return page; in do_read_cache_page()
3470 if (PageUptodate(page)) in do_read_cache_page()
3504 wait_on_page_locked(page); in do_read_cache_page()
3505 if (PageUptodate(page)) in do_read_cache_page()
3509 lock_page(page); in do_read_cache_page()
3512 if (!page->mapping) { in do_read_cache_page()
3513 unlock_page(page); in do_read_cache_page()
3514 put_page(page); in do_read_cache_page()
3519 if (PageUptodate(page)) { in do_read_cache_page()
3520 unlock_page(page); in do_read_cache_page()
3530 ClearPageError(page); in do_read_cache_page()
3534 mark_page_accessed(page); in do_read_cache_page()
3535 return page; in do_read_cache_page()
3554 struct page *read_cache_page(struct address_space *mapping, in read_cache_page()
3556 int (*filler)(void *, struct page *), in read_cache_page() argument
3579 struct page *read_cache_page_gfp(struct address_space *mapping, in read_cache_page_gfp()
3589 struct page **pagep, void **fsdata) in pagecache_write_begin()
3600 struct page *page, void *fsdata) in pagecache_write_end() argument
3604 return aops->write_end(file, mapping, pos, len, copied, page, fsdata); in pagecache_write_end()
3715 struct page *grab_cache_page_write_begin(struct address_space *mapping, in grab_cache_page_write_begin()
3718 struct page *page; in grab_cache_page_write_begin() local
3724 page = pagecache_get_page(mapping, index, fgp_flags, in grab_cache_page_write_begin()
3726 if (page) in grab_cache_page_write_begin()
3727 wait_for_stable_page(page); in grab_cache_page_write_begin()
3729 return page; in grab_cache_page_write_begin()
3743 struct page *page; in generic_perform_write() local
3771 &page, &fsdata); in generic_perform_write()
3776 flush_dcache_page(page); in generic_perform_write()
3778 copied = copy_page_from_iter_atomic(page, offset, bytes, i); in generic_perform_write()
3779 flush_dcache_page(page); in generic_perform_write()
3782 page, fsdata); in generic_perform_write()
3955 int try_to_release_page(struct page *page, gfp_t gfp_mask) in try_to_release_page() argument
3957 struct address_space * const mapping = page->mapping; in try_to_release_page()
3959 BUG_ON(!PageLocked(page)); in try_to_release_page()
3960 if (PageWriteback(page)) in try_to_release_page()
3964 return mapping->a_ops->releasepage(page, gfp_mask); in try_to_release_page()
3965 return try_to_free_buffers(page); in try_to_release_page()