From: Christoph Hellwig hch@lst.de
commit 5833112df7e9a306af9af09c60127b92ed723962 upstream.
Reflink should force the log out to disk if the filesystem was mounted with wsync, the same as most other operations in xfs.
[Note: XFS_MOUNT_WSYNC is set when the admin mounts the filesystem with either the 'wsync' or 'sync' mount options, which effectively means that we're classifying reflink/dedupe as IO operations and making them synchronous when required.]
Fixes: 3fc9f5e409319 ("xfs: remove xfs_reflink_remap_range") Signed-off-by: Christoph Hellwig hch@lst.de Reviewed-by: Brian Foster bfoster@redhat.com [darrick: add more to the changelog] Reviewed-by: Darrick J. Wong darrick.wong@oracle.com Signed-off-by: Darrick J. Wong darrick.wong@oracle.com Acked-by: Darrick J. Wong djwong@kernel.org Signed-off-by: Chandan Babu R chandan.babu@oracle.com --- fs/xfs/xfs_file.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index ec955b18ea50..cbca91b4b5b8 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1044,7 +1044,11 @@ xfs_file_remap_range(
ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize, remap_flags); + if (ret) + goto out_unlock;
+ if (mp->m_flags & XFS_MOUNT_WSYNC) + xfs_log_force_inode(dest); out_unlock: xfs_reflink_remap_unlock(file_in, file_out); if (ret)