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/xfs | |
| parent | eb745dbccce56f1bbe3f80b95ad2a325145171c2 (diff) | |
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/xfs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_iops.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index da54403633b..a4ecc2188a0 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -518,6 +518,9 @@ xfs_vn_fallocate( xfs_inode_t *ip = XFS_I(inode); int cmd = XFS_IOC_RESVSP; + if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) + return -EOPNOTSUPP; + /* preallocation on directories not yet supported */ error = -ENODEV; if (S_ISDIR(inode->i_mode)) |