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/swap.h> 10 #include "internal.h" 11 12 struct address_space *page_mapping(struct page *page) 13 { 14 return folio_mapping(page_folio(page)); 15 } 16 EXPORT_SYMBOL(page_mapping); 17 18 void unlock_page(struct page *page) 19 { 20 return folio_unlock(page_folio(page)); 21 } 22 EXPORT_SYMBOL(unlock_page); 23 24 void end_page_writeback(struct page *page) 25 { 26 return folio_end_writeback(page_folio(page)); 27 } 28 EXPORT_SYMBOL(end_page_writeback); 29 30 void wait_on_page_writeback(struct page *page) 31 { 32 return folio_wait_writeback(page_folio(page)); 33 } 34 EXPORT_SYMBOL_GPL(wait_on_page_writeback); 35 36 void wait_for_stable_page(struct page *page) 37 { 38 return folio_wait_stable(page_folio(page)); 39 } 40 EXPORT_SYMBOL_GPL(wait_for_stable_page); 41 42 bool page_mapped(struct page *page) 43 { 44 return folio_mapped(page_folio(page)); 45 } 46 EXPORT_SYMBOL(page_mapped); 47 48 void mark_page_accessed(struct page *page) 49 { 50 folio_mark_accessed(page_folio(page)); 51 } 52 EXPORT_SYMBOL(mark_page_accessed); 53 54 bool set_page_writeback(struct page *page) 55 { 56 return folio_start_writeback(page_folio(page)); 57 } 58 EXPORT_SYMBOL(set_page_writeback); 59 60 bool set_page_dirty(struct page *page) 61 { 62 return folio_mark_dirty(page_folio(page)); 63 } 64 EXPORT_SYMBOL(set_page_dirty); 65 66 int __set_page_dirty_nobuffers(struct page *page) 67 { 68 return filemap_dirty_folio(page_mapping(page), page_folio(page)); 69 } 70 EXPORT_SYMBOL(__set_page_dirty_nobuffers); 71 72 bool clear_page_dirty_for_io(struct page *page) 73 { 74 return folio_clear_dirty_for_io(page_folio(page)); 75 } 76 EXPORT_SYMBOL(clear_page_dirty_for_io); 77 78 bool redirty_page_for_writepage(struct writeback_control *wbc, 79 struct page *page) 80 { 81 return folio_redirty_for_writepage(wbc, page_folio(page)); 82 } 83 EXPORT_SYMBOL(redirty_page_for_writepage); 84 85 void lru_cache_add(struct page *page) 86 { 87 folio_add_lru(page_folio(page)); 88 } 89 EXPORT_SYMBOL(lru_cache_add); 90 91 void lru_cache_add_inactive_or_unevictable(struct page *page, 92 struct vm_area_struct *vma) 93 { 94 folio_add_lru_vma(page_folio(page), vma); 95 } 96 97 int add_to_page_cache_lru(struct page *page, struct address_space *mapping, 98 pgoff_t index, gfp_t gfp) 99 { 100 return filemap_add_folio(mapping, page_folio(page), index, gfp); 101 } 102 EXPORT_SYMBOL(add_to_page_cache_lru); 103 104 noinline 105 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index, 106 int fgp_flags, gfp_t gfp) 107 { 108 struct folio *folio; 109 110 folio = __filemap_get_folio(mapping, index, fgp_flags, gfp); 111 if ((fgp_flags & FGP_HEAD) || !folio || xa_is_value(folio)) 112 return &folio->page; 113 return folio_file_page(folio, index); 114 } 115 EXPORT_SYMBOL(pagecache_get_page); 116 117 struct page *grab_cache_page_write_begin(struct address_space *mapping, 118 pgoff_t index) 119 { 120 unsigned fgp_flags = FGP_LOCK | FGP_WRITE | FGP_CREAT | FGP_STABLE; 121 122 return pagecache_get_page(mapping, index, fgp_flags, 123 mapping_gfp_mask(mapping)); 124 } 125 EXPORT_SYMBOL(grab_cache_page_write_begin); 126 127 void delete_from_page_cache(struct page *page) 128 { 129 return filemap_remove_folio(page_folio(page)); 130 } 131 132 int try_to_release_page(struct page *page, gfp_t gfp) 133 { 134 return filemap_release_folio(page_folio(page), gfp); 135 } 136 EXPORT_SYMBOL(try_to_release_page); 137 138 int isolate_lru_page(struct page *page) 139 { 140 if (WARN_RATELIMIT(PageTail(page), "trying to isolate tail page")) 141 return -EBUSY; 142 return folio_isolate_lru((struct folio *)page); 143 } 144 145 void putback_lru_page(struct page *page) 146 { 147 folio_putback_lru(page_folio(page)); 148 } 149