Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
13void unlock_page(struct page *page)
14{
15 return folio_unlock(page_folio(page));
16}
17EXPORT_SYMBOL(unlock_page);
18
19void end_page_writeback(struct page *page)
20{
21 return folio_end_writeback(page_folio(page));
22}
23EXPORT_SYMBOL(end_page_writeback);
24
25void wait_on_page_writeback(struct page *page)
26{
27 return folio_wait_writeback(page_folio(page));
28}
29EXPORT_SYMBOL_GPL(wait_on_page_writeback);
30
31void wait_for_stable_page(struct page *page)
32{
33 return folio_wait_stable(page_folio(page));
34}
35EXPORT_SYMBOL_GPL(wait_for_stable_page);
36
37void mark_page_accessed(struct page *page)
38{
39 folio_mark_accessed(page_folio(page));
40}
41EXPORT_SYMBOL(mark_page_accessed);
42
43void set_page_writeback(struct page *page)
44{
45 folio_start_writeback(page_folio(page));
46}
47EXPORT_SYMBOL(set_page_writeback);
48
49bool set_page_dirty(struct page *page)
50{
51 return folio_mark_dirty(page_folio(page));
52}
53EXPORT_SYMBOL(set_page_dirty);
54
55int set_page_dirty_lock(struct page *page)
56{
57 return folio_mark_dirty_lock(page_folio(page));
58}
59EXPORT_SYMBOL(set_page_dirty_lock);
60
61bool clear_page_dirty_for_io(struct page *page)
62{
63 return folio_clear_dirty_for_io(page_folio(page));
64}
65EXPORT_SYMBOL(clear_page_dirty_for_io);
66
67bool redirty_page_for_writepage(struct writeback_control *wbc,
68 struct page *page)
69{
70 return folio_redirty_for_writepage(wbc, page_folio(page));
71}
72EXPORT_SYMBOL(redirty_page_for_writepage);
73
74int 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}
79EXPORT_SYMBOL(add_to_page_cache_lru);
80
81noinline
82struct 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}
92EXPORT_SYMBOL(pagecache_get_page);
93
94struct 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}
100EXPORT_SYMBOL(grab_cache_page_write_begin);