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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-12-16 05:11:07 +0100 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-10-18 13:49:40 +0200 |
| commit | bb3c579e25e5757bc5bac1333f4a56dfebf7cb91 (patch) | |
| tree | 1a20d81732d86e00c385fc709e8fd87465144e08 /mm | |
| parent | mm/page_alloc: Add folio allocation functions (diff) | |
| download | linux-bb3c579e25e5757bc5bac1333f4a56dfebf7cb91.tar.xz 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 'mm')
| -rw-r--r-- | mm/filemap.c | 14 |
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 /* |