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| author | Michal Hocko | 2015-11-07 01:28:49 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2015-11-07 02:50:42 +0100 |
| commit | c62d25556be6c965dc14288e796a576e8e39a7e9 (patch) | |
| tree | d82b41091f4dd8d378e2e2c841c90093da1485e0 /fs/btrfs/compression.c | |
| parent | include/linux/mmzone.h: reflow comment (diff) | |
| download | kernel-qcow2-linux-c62d25556be6c965dc14288e796a576e8e39a7e9.tar.gz kernel-qcow2-linux-c62d25556be6c965dc14288e796a576e8e39a7e9.tar.xz kernel-qcow2-linux-c62d25556be6c965dc14288e796a576e8e39a7e9.zip | |
mm, fs: introduce mapping_gfp_constraint()
There are many places which use mapping_gfp_mask to restrict a more
generic gfp mask which would be used for allocations which are not
directly related to the page cache but they are performed in the same
context.
Let's introduce a helper function which makes the restriction explicit and
easier to track. This patch doesn't introduce any functional changes.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Michal Hocko <mhocko@suse.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 57ee8ca29b06..36dfeff2c1f4 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -482,13 +482,12 @@ static noinline int add_ra_bio_pages(struct inode *inode, goto next; } - page = __page_cache_alloc(mapping_gfp_mask(mapping) & - ~__GFP_FS); + page = __page_cache_alloc(mapping_gfp_constraint(mapping, + ~__GFP_FS)); if (!page) break; - if (add_to_page_cache_lru(page, mapping, pg_index, - GFP_NOFS)) { + if (add_to_page_cache_lru(page, mapping, pg_index, GFP_NOFS)) { page_cache_release(page); goto next; } |