xref: /linux/mm/folio-compat.c (revision c34e9ab9a612ee8b18273398ef75c207b01f516d)
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 int set_page_dirty_lock(struct page *page)
56 {
57 	return folio_mark_dirty_lock(page_folio(page));
58 }
59 EXPORT_SYMBOL(set_page_dirty_lock);
60 
61 bool clear_page_dirty_for_io(struct page *page)
62 {
63 	return folio_clear_dirty_for_io(page_folio(page));
64 }
65 EXPORT_SYMBOL(clear_page_dirty_for_io);
66 
67 bool redirty_page_for_writepage(struct writeback_control *wbc,
68 		struct page *page)
69 {
70 	return folio_redirty_for_writepage(wbc, page_folio(page));
71 }
72 EXPORT_SYMBOL(redirty_page_for_writepage);
73 
74 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
75 		pgoff_t index, gfp_t gfp)
76 {
77 	return filemap_add_folio(mapping, page_folio(page), index, gfp);
78 }
79 EXPORT_SYMBOL(add_to_page_cache_lru);
80 
81 noinline
82 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
83 		fgf_t fgp_flags, gfp_t gfp)
84 {
85 	struct folio *folio;
86 
87 	folio = __filemap_get_folio(mapping, index, fgp_flags, gfp);
88 	if (IS_ERR(folio))
89 		return NULL;
90 	return folio_file_page(folio, index);
91 }
92 EXPORT_SYMBOL(pagecache_get_page);
93 
94 struct page *grab_cache_page_write_begin(struct address_space *mapping,
95 					pgoff_t index)
96 {
97 	return pagecache_get_page(mapping, index, FGP_WRITEBEGIN,
98 			mapping_gfp_mask(mapping));
99 }
100 EXPORT_SYMBOL(grab_cache_page_write_begin);
101