On Thu, Oct 20, 2016 at 10:28:41AM +0800, Qu Wenruo wrote: > Goldwyn Rodrigues has exposed and fixed a bug which underflows btrfs > qgroup reserved space, and leads to non-writable fs. > > This reminds us that we don't have enough underflow check for qgroup > reserved space. > > For underflow case, we should not really underflow the numbers but warn > and keeps qgroup still work. > > So add more check on qgroup reserved space and add WARN_ON() and > btrfs_warn() for any underflow case. > > Signed-off-by: Qu Wenruo <quwen...@cn.fujitsu.com>
Reviewed-by: David Sterba <dste...@suse.com> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
