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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_file.c | |
| parent | c8e156ac336d82f67d7adc014404a2251e9dad09 (diff) | |
| download | linux-stable-4f435ebe7d0422af61cdcddbbcc659888645a1e1.tar.gz linux-stable-4f435ebe7d0422af61cdcddbbcc659888645a1e1.tar.bz2 linux-stable-4f435ebe7d0422af61cdcddbbcc659888645a1e1.zip | |
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_file.c')
| -rw-r--r-- | fs/xfs/xfs_file.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 0726df88bce2..54c27edb74bc 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1055,6 +1055,10 @@ xfs_file_share_range( if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) return -EINVAL; + /* Don't share DAX file data for now. */ + if (IS_DAX(inode_in) || IS_DAX(inode_out)) + return -EINVAL; + /* Are we going all the way to the end? */ isize = i_size_read(inode_in); if (isize == 0) |