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authorMichal Hocko <mhocko@suse.com>2015-11-06 16:28:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 17:50:42 -0800
commitc62d25556be6c965dc14288e796a576e8e39a7e9 (patch)
treed82b41091f4dd8d378e2e2c841c90093da1485e0 /fs/logfs
parent89903327607232de32f05100cf03f9390b858e0b (diff)
downloadop-kernel-dev-c62d25556be6c965dc14288e796a576e8e39a7e9.zip
op-kernel-dev-c62d25556be6c965dc14288e796a576e8e39a7e9.tar.gz
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/logfs')
-rw-r--r--fs/logfs/segment.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 7f9b096..6de0fbf 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -57,7 +57,7 @@ static struct page *get_mapping_page(struct super_block *sb, pgoff_t index,
filler_t *filler = super->s_devops->readpage;
struct page *page;
- BUG_ON(mapping_gfp_mask(mapping) & __GFP_FS);
+ BUG_ON(mapping_gfp_constraint(mapping, __GFP_FS));
if (use_filler)
page = read_cache_page(mapping, index, filler, sb);
else {
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