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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 | c8e156ac336d82f67d7adc014404a2251e9dad09 (patch) | |
| tree | ad4439160ac5088574fa6984270ee2221438abb2 /fs/xfs/xfs_ioctl.c | |
| parent | e153aa7990a09a8a12860fc1f79304b02a6bc03f (diff) | |
| download | op-kernel-dev-c8e156ac336d82f67d7adc014404a2251e9dad09.zip op-kernel-dev-c8e156ac336d82f67d7adc014404a2251e9dad09.tar.gz | |
xfs: check for invalid inode reflink flags
We don't support sharing blocks on the realtime device. Flag inodes
with the reflink or cowextsize flags set when the reflink feature is
disabled.
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 1388a127..c65d9ea 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1034,6 +1034,10 @@ xfs_ioctl_setattr_xflags( return -EINVAL; } + /* Don't allow us to set realtime mode for a reflinked file. */ + if ((fa->fsx_xflags & FS_XFLAG_REALTIME) && xfs_is_reflink_inode(ip)) + return -EINVAL; + /* * Can't modify an immutable/append-only file unless * we have appropriate permission. |
