[PATCH v4 18/19] btrfs: only dirty the inode in btrfs_update_time if something was changed

[David Sterba]

On Fri, Dec 22, 2017 at 07:05:55AM -0500, Jeff Layton wrote:
> From: Jeff Layton <jlayton at redhat.com>
> 
> At this point, we know that "now" and the file times may differ, and we
> suspect that the i_version has been flagged to be bumped. Attempt to
> bump the i_version, and only mark the inode dirty if that actually
> occurred or if one of the times was updated.
> 
> Signed-off-by: Jeff Layton <jlayton at redhat.com>

Acked-by: David Sterba <dsterba at suse.com>