tree cf554886d6d1f9434a58a3e139c5b7d4ee8a6ab5
parent eec40579d84873dfb7021eb24c50360f073237c5
author Joe Thornber <ejt@redhat.com> 1393861044 -0500
committer Mike Snitzer <snitzer@redhat.com> 1395953783 -0400

dm bitset: only flush the current word if it has been dirtied

This change offers a big performance boost for dm-era.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>