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authorMatthew Wilcox (Oracle) <willy@infradead.org>2020-12-16 07:11:07 +0300
committerMatthew Wilcox (Oracle) <willy@infradead.org>2021-10-18 14:49:40 +0300
commitbb3c579e25e5757bc5bac1333f4a56dfebf7cb91 (patch)
tree1a20d81732d86e00c385fc709e8fd87465144e08 /mm/filemap.c
parentcc09cb134124a42fbe3bdcebefdc54e286d8f3e5 (diff)
downloadlinux-bb3c579e25e5757bc5bac1333f4a56dfebf7cb91.tar.xz
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 'mm/filemap.c')
-rw-r--r--mm/filemap.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index c4a7f3fdca12..6976fb4af390 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1006,24 +1006,24 @@ int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
EXPORT_SYMBOL_GPL(add_to_page_cache_lru);
#ifdef CONFIG_NUMA
-struct page *__page_cache_alloc(gfp_t gfp)
+struct folio *filemap_alloc_folio(gfp_t gfp, unsigned int order)
{
int n;
- struct page *page;
+ struct folio *folio;
if (cpuset_do_page_mem_spread()) {
unsigned int cpuset_mems_cookie;
do {
cpuset_mems_cookie = read_mems_allowed_begin();
n = cpuset_mem_spread_node();
- page = __alloc_pages_node(n, gfp, 0);
- } while (!page && read_mems_allowed_retry(cpuset_mems_cookie));
+ folio = __folio_alloc_node(gfp, order, n);
+ } while (!folio && read_mems_allowed_retry(cpuset_mems_cookie));
- return page;
+ return folio;
}
- return alloc_pages(gfp, 0);
+ return folio_alloc(gfp, order);
}
-EXPORT_SYMBOL(__page_cache_alloc);
+EXPORT_SYMBOL(filemap_alloc_folio);
#endif
/*