1 /* 2 * Compatibility functions which bloat the callers too much to make inline. 3 * All of the callers of these functions should be converted to use folios 4 * eventually. 5 */ 6 7 #include <linux/migrate.h> 8 #include <linux/pagemap.h> 9 #include <linux/rmap.h> 10 #include <linux/swap.h> 11 #include "internal.h" 12 13 struct address_space *page_mapping(struct page *page) 14 { 15 return folio_mapping(page_folio(page)); 16 } 17 EXPORT_SYMBOL(page_mapping); 18 19 void unlock_page(struct page *page) 20 { 21 return folio_unlock(page_folio(page)); 22 } 23 EXPORT_SYMBOL(unlock_page); 24 25 void end_page_writeback(struct page *page) 26 { 27 return folio_end_writeback(page_folio(page)); 28 } 29 EXPORT_SYMBOL(end_page_writeback); 30 31 void wait_on_page_writeback(struct page *page) 32 { 33 return folio_wait_writeback(page_folio(page)); 34 } 35 EXPORT_SYMBOL_GPL(wait_on_page_writeback); 36 37 void wait_for_stable_page(struct page *page) 38 { 39 return folio_wait_stable(page_folio(page)); 40 } 41 EXPORT_SYMBOL_GPL(wait_for_stable_page); 42 43 void mark_page_accessed(struct page *page) 44 { 45 folio_mark_accessed(page_folio(page)); 46 } 47 EXPORT_SYMBOL(mark_page_accessed); 48 49 void set_page_writeback(struct page *page) 50 { 51 folio_start_writeback(page_folio(page)); 52 } 53 EXPORT_SYMBOL(set_page_writeback); 54 55 bool set_page_dirty(struct page *page) 56 { 57 return folio_mark_dirty(page_folio(page)); 58 } 59 EXPORT_SYMBOL(set_page_dirty); 60 61 int __set_page_dirty_nobuffers(struct page *page) 62 { 63 return filemap_dirty_folio(page_mapping(page), page_folio(page)); 64 } 65 EXPORT_SYMBOL(__set_page_dirty_nobuffers); 66 67 bool clear_page_dirty_for_io(struct page *page) 68 { 69 return folio_clear_dirty_for_io(page_folio(page)); 70 } 71 EXPORT_SYMBOL(clear_page_dirty_for_io); 72 73 bool redirty_page_for_writepage(struct writeback_control *wbc, 74 struct page *page) 75 { 76 return folio_redirty_for_writepage(wbc, page_folio(page)); 77 } 78 EXPORT_SYMBOL(redirty_page_for_writepage); 79 80 int add_to_page_cache_lru(struct page *page, struct address_space *mapping, 81 pgoff_t index, gfp_t gfp) 82 { 83 return filemap_add_folio(mapping, page_folio(page), index, gfp); 84 } 85 EXPORT_SYMBOL(add_to_page_cache_lru); 86 87 noinline 88 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index, 89 fgf_t fgp_flags, gfp_t gfp) 90 { 91 struct folio *folio; 92 93 folio = __filemap_get_folio(mapping, index, fgp_flags, gfp); 94 if (IS_ERR(folio)) 95 return NULL; 96 return folio_file_page(folio, index); 97 } 98 EXPORT_SYMBOL(pagecache_get_page); 99 100 struct page *grab_cache_page_write_begin(struct address_space *mapping, 101 pgoff_t index) 102 { 103 return pagecache_get_page(mapping, index, FGP_WRITEBEGIN, 104 mapping_gfp_mask(mapping)); 105 } 106 EXPORT_SYMBOL(grab_cache_page_write_begin); 107 108 bool isolate_lru_page(struct page *page) 109 { 110 if (WARN_RATELIMIT(PageTail(page), "trying to isolate tail page")) 111 return false; 112 return folio_isolate_lru((struct folio *)page); 113 } 114 115 void putback_lru_page(struct page *page) 116 { 117 folio_putback_lru(page_folio(page)); 118 } 119