diff options
| author | Christoph Hellwig <hch@lst.de> | 2011-01-14 13:07:30 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-01-17 02:25:30 -0500 |
| commit | 64c23e86873ee410554d6d1c76b60da47025e96f (patch) | |
| tree | b30c5ff8782ebfdec6956d7834f796731fd3a1d4 /fs/ocfs2 | |
| parent | eb745dbccce56f1bbe3f80b95ad2a325145171c2 (diff) | |
| download | lwn-64c23e86873ee410554d6d1c76b60da47025e96f.tar.gz lwn-64c23e86873ee410554d6d1c76b60da47025e96f.zip | |
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/ocfs2')
| -rw-r--r-- | fs/ocfs2/file.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 63e3fca266e0..cf254ce8c941 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1997,6 +1997,8 @@ static long ocfs2_fallocate(struct inode *inode, int mode, loff_t offset, int change_size = 1; int cmd = OCFS2_IOC_RESVSP64; + if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) + return -EOPNOTSUPP; if (!ocfs2_writes_unwritten_extents(osb)) return -EOPNOTSUPP; |