Joe Thornber 428e469864 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>

2014-03-27 16:56:23 -04:00

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