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 void unlock_page(struct page *page)
14 {
15 return folio_unlock(page_folio(page));
16 }
17 EXPORT_SYMBOL(unlock_page);
18
19 void end_page_writeback(struct page *page)
20 {
21 return folio_end_writeback(page_folio(page));
22 }
23 EXPORT_SYMBOL(end_page_writeback);
24
25 void wait_on_page_writeback(struct page *page)
26 {
27 return folio_wait_writeback(page_folio(page));
28 }
29 EXPORT_SYMBOL_GPL(wait_on_page_writeback);
30
31 void wait_for_stable_page(struct page *page)
32 {
33 return folio_wait_stable(page_folio(page));
34 }
35 EXPORT_SYMBOL_GPL(wait_for_stable_page);
36
37 void mark_page_accessed(struct page *page)
38 {
39 folio_mark_accessed(page_folio(page));
40 }
41 EXPORT_SYMBOL(mark_page_accessed);
42
43 void set_page_writeback(struct page *page)
44 {
45 folio_start_writeback(page_folio(page));
46 }
47 EXPORT_SYMBOL(set_page_writeback);
48
49 bool set_page_dirty(struct page *page)
50 {
51 return folio_mark_dirty(page_folio(page));
52 }
53 EXPORT_SYMBOL(set_page_dirty);
54
55 bool clear_page_dirty_for_io(struct page *page)
56 {
57 return folio_clear_dirty_for_io(page_folio(page));
58 }
59 EXPORT_SYMBOL(clear_page_dirty_for_io);
60
61 bool redirty_page_for_writepage(struct writeback_control *wbc,
62 struct page *page)
63 {
64 return folio_redirty_for_writepage(wbc, page_folio(page));
65 }
66 EXPORT_SYMBOL(redirty_page_for_writepage);
67
68 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
69 pgoff_t index, gfp_t gfp)
70 {
71 return filemap_add_folio(mapping, page_folio(page), index, gfp);
72 }
73 EXPORT_SYMBOL(add_to_page_cache_lru);
74
75 noinline
76 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
77 fgf_t fgp_flags, gfp_t gfp)
78 {
79 struct folio *folio;
80
81 folio = __filemap_get_folio(mapping, index, fgp_flags, gfp);
82 if (IS_ERR(folio))
83 return NULL;
84 return folio_file_page(folio, index);
85 }
86 EXPORT_SYMBOL(pagecache_get_page);
87
88 struct page *grab_cache_page_write_begin(struct address_space *mapping,
89 pgoff_t index)
90 {
91 return pagecache_get_page(mapping, index, FGP_WRITEBEGIN,
92 mapping_gfp_mask(mapping));
93 }
94 EXPORT_SYMBOL(grab_cache_page_write_begin);
95
96 bool isolate_lru_page(struct page *page)
97 {
98 if (WARN_RATELIMIT(PageTail(page), "trying to isolate tail page"))
99 return false;
100 return folio_isolate_lru((struct folio *)page);
101 }
102
103 void putback_lru_page(struct page *page)
104 {
105 folio_putback_lru(page_folio(page));
106 }
107
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