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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 09:11:50 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-05 16:26:31 -0700 |
| commit | 4f435ebe7d0422af61cdcddbbcc659888645a1e1 (patch) | |
| tree | 49f6833f8b5b9e71c2df1b540fcbe933dfcd7087 /fs/xfs/xfs_ioctl.c | |
| parent | c8e156ac336d82f67d7adc014404a2251e9dad09 (diff) | |
| download | linux-4f435ebe7d0422af61cdcddbbcc659888645a1e1.tar.bz2 | |
xfs: don't mix reflink and DAX mode for now
Since we don't have a strategy for handling both DAX and reflink,
for now we'll just prohibit both being set at the same time.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index c65d9eacf54d..8b9f31c54c1e 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1038,6 +1038,10 @@ xfs_ioctl_setattr_xflags( if ((fa->fsx_xflags & FS_XFLAG_REALTIME) && xfs_is_reflink_inode(ip)) return -EINVAL; + /* Don't allow us to set DAX mode for a reflinked file for now. */ + if ((fa->fsx_xflags & FS_XFLAG_DAX) && xfs_is_reflink_inode(ip)) + return -EINVAL; + /* * Can't modify an immutable/append-only file unless * we have appropriate permission. |