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 13struct address_space *page_mapping(struct page *page) 14{ 15 return folio_mapping(page_folio(page)); 16} 17EXPORT_SYMBOL(page_mapping); 18 19void unlock_page(struct page *page) 20{ 21 return folio_unlock(page_folio(page)); 22} 23EXPORT_SYMBOL(unlock_page); 24 25void end_page_writeback(struct page *page) 26{ 27 return folio_end_writeback(page_folio(page)); 28} 29EXPORT_SYMBOL(end_page_writeback); 30 31void wait_on_page_writeback(struct page *page) 32{ 33 return folio_wait_writeback(page_folio(page)); 34} 35EXPORT_SYMBOL_GPL(wait_on_page_writeback); 36 37void wait_for_stable_page(struct page *page) 38{ 39 return folio_wait_stable(page_folio(page)); 40} 41EXPORT_SYMBOL_GPL(wait_for_stable_page); 42 43void mark_page_accessed(struct page *page) 44{ 45 folio_mark_accessed(page_folio(page)); 46} 47EXPORT_SYMBOL(mark_page_accessed); 48 49void set_page_writeback(struct page *page) 50{ 51 folio_start_writeback(page_folio(page)); 52} 53EXPORT_SYMBOL(set_page_writeback); 54 55bool set_page_dirty(struct page *page) 56{ 57 return folio_mark_dirty(page_folio(page)); 58} 59EXPORT_SYMBOL(set_page_dirty); 60 61int __set_page_dirty_nobuffers(struct page *page) 62{ 63 return filemap_dirty_folio(page_mapping(page), page_folio(page)); 64} 65EXPORT_SYMBOL(__set_page_dirty_nobuffers); 66 67bool clear_page_dirty_for_io(struct page *page) 68{ 69 return folio_clear_dirty_for_io(page_folio(page)); 70} 71EXPORT_SYMBOL(clear_page_dirty_for_io); 72 73bool redirty_page_for_writepage(struct writeback_control *wbc, 74 struct page *page) 75{ 76 return folio_redirty_for_writepage(wbc, page_folio(page)); 77} 78EXPORT_SYMBOL(redirty_page_for_writepage); 79 80int 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} 85EXPORT_SYMBOL(add_to_page_cache_lru); 86 87noinline 88struct 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} 98EXPORT_SYMBOL(pagecache_get_page); 99 100struct 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} 106EXPORT_SYMBOL(grab_cache_page_write_begin); 107 108bool 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 115void putback_lru_page(struct page *page) 116{ 117 folio_putback_lru(page_folio(page)); 118} 119