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authorChristoph Hellwig <hch@lst.de>2011-01-14 15:07:30 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2011-01-17 10:25:30 +0300
commit64c23e86873ee410554d6d1c76b60da47025e96f (patch)
treeb30c5ff8782ebfdec6956d7834f796731fd3a1d4 /fs/gfs2/ops_inode.c
parenteb745dbccce56f1bbe3f80b95ad2a325145171c2 (diff)
downloadlinux-64c23e86873ee410554d6d1c76b60da47025e96f.tar.xz
make the feature checks in ->fallocate future proof
Instead of various home grown checks that might need updates for new flags just check for any bit outside the mask of the features supported by the filesystem. This makes the check future proof for any newly added flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/gfs2/ops_inode.c')
-rw-r--r--fs/gfs2/ops_inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 040b5a2e6556..c09528c07f3d 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -1426,7 +1426,7 @@ static long gfs2_fallocate(struct inode *inode, int mode, loff_t offset,
next = (next + 1) << sdp->sd_sb.sb_bsize_shift;
/* We only support the FALLOC_FL_KEEP_SIZE mode */
- if (mode && (mode != FALLOC_FL_KEEP_SIZE))
+ if (mode & ~FALLOC_FL_KEEP_SIZE)
return -EOPNOTSUPP;
offset = (offset >> sdp->sd_sb.sb_bsize_shift) <<