tree c7b3665d3b81db278be74ba0ec36ebdde1c94c7f
parent 3e507157e1e3bdd30a70d27b86f5f4ce7a40ae74
author David Sterba <dsterba@suse.com> 1580919148 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1582900933 +0100

btrfs: log message when rw remount is attempted with unclean tree-log

commit 10a3a3edc5b89a8cd095bc63495fb1e0f42047d9 upstream.

A remount to a read-write filesystem is not safe when there's tree-log
to be replayed. Files that could be opened until now might be affected
by the changes in the tree-log.

A regular mount is needed to replay the log so the filesystem presents
the consistent view with the pending changes included.

CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>