From: Christoph Hellwig <hch@xxxxxx>
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@xxxxxx>
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
[darrick: add more to the changelog]
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Chandan Babu R <chandan.babu@xxxxxxxxxx>
---
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)
--
2.35.1
