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 bool set_page_writeback(struct page *page) 50 { 51 return 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 void lru_cache_add_inactive_or_unevictable(struct page *page, 81 struct vm_area_struct *vma) 82 { 83 folio_add_lru_vma(page_folio(page), vma); 84 } 85 86 int add_to_page_cache_lru(struct page *page, struct address_space *mapping, 87 pgoff_t index, gfp_t gfp) 88 { 89 return filemap_add_folio(mapping, page_folio(page), index, gfp); 90 } 91 EXPORT_SYMBOL(add_to_page_cache_lru); 92 93 noinline 94 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index, 95 int fgp_flags, gfp_t gfp) 96 { 97 struct folio *folio; 98 99 folio = __filemap_get_folio(mapping, index, fgp_flags, gfp); 100 if (IS_ERR(folio)) 101 return NULL; 102 return folio_file_page(folio, index); 103 } 104 EXPORT_SYMBOL(pagecache_get_page); 105 106 struct page *grab_cache_page_write_begin(struct address_space *mapping, 107 pgoff_t index) 108 { 109 return pagecache_get_page(mapping, index, FGP_WRITEBEGIN, 110 mapping_gfp_mask(mapping)); 111 } 112 EXPORT_SYMBOL(grab_cache_page_write_begin); 113 114 bool isolate_lru_page(struct page *page) 115 { 116 if (WARN_RATELIMIT(PageTail(page), "trying to isolate tail page")) 117 return false; 118 return folio_isolate_lru((struct folio *)page); 119 } 120 121 void putback_lru_page(struct page *page) 122 { 123 folio_putback_lru(page_folio(page)); 124 } 125 126 #ifdef CONFIG_MMU 127 void page_add_new_anon_rmap(struct page *page, struct vm_area_struct *vma, 128 unsigned long address) 129 { 130 VM_BUG_ON_PAGE(PageTail(page), page); 131 132 return folio_add_new_anon_rmap((struct folio *)page, vma, address); 133 } 134 #endif 135