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author | 2020-12-15 23:11:07 -0500 | |
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committer | 2021-10-18 07:49:40 -0400 | |
commit | bb3c579e25e5757bc5bac1333f4a56dfebf7cb91 (patch) | |
tree | 1a20d81732d86e00c385fc709e8fd87465144e08 /include | |
parent | mm/page_alloc: Add folio allocation functions (diff) | |
download | linux-bb3c579e25e5757bc5bac1333f4a56dfebf7cb91.tar.gz linux-bb3c579e25e5757bc5bac1333f4a56dfebf7cb91.tar.bz2 linux-bb3c579e25e5757bc5bac1333f4a56dfebf7cb91.zip |
mm/filemap: Add filemap_alloc_folio
Reimplement __page_cache_alloc as a wrapper around filemap_alloc_folio
to allow filesystems to be converted at our leisure. Increases
kernel text size by 133 bytes, mostly in cachefiles_read_backing_file().
pagecache_get_page() shrinks by 32 bytes, though.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/pagemap.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index fea9615bab35..51c190ae3b0b 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -262,14 +262,19 @@ static inline void *detach_page_private(struct page *page) } #ifdef CONFIG_NUMA -extern struct page *__page_cache_alloc(gfp_t gfp); +struct folio *filemap_alloc_folio(gfp_t gfp, unsigned int order); #else -static inline struct page *__page_cache_alloc(gfp_t gfp) +static inline struct folio *filemap_alloc_folio(gfp_t gfp, unsigned int order) { - return alloc_pages(gfp, 0); + return folio_alloc(gfp, order); } #endif +static inline struct page *__page_cache_alloc(gfp_t gfp) +{ + return &filemap_alloc_folio(gfp, 0)->page; +} + static inline struct page *page_cache_alloc(struct address_space *x) { return __page_cache_alloc(mapping_gfp_mask(x)); |