tree 19de63c7656fd2df9720881d78cc41ffa8591836
parent c53839fc3217085c210e1a62022016f199ae7b5a
author Qu Wenruo <wqu@suse.com> 1551170036 +0800
committer David Sterba <dsterba@suse.com> 1556557337 +0200

btrfs: Don't panic when we can't find a root key

When we failed to find a root key in btrfs_update_root(), we just panic.

That's definitely not cool, fix it by outputting an unique error
message, aborting current transaction and return -EUCLEAN. This should
not normally happen as the root has been used by the callers in some
way.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>