| commit | 40775257b97e27305cf5c2425be7acaa6edee4ea | [log] [tgz] |
|---|---|---|
| author | Joe Thornber <ejt@redhat.com> | Fri May 15 15:29:58 2015 +0100 |
| committer | Mike Snitzer <snitzer@redhat.com> | Fri May 29 14:19:07 2015 -0400 |
| tree | d58225e340a166656b916f7542cfbd9c96401222 | |
| parent | 651f5fa2a3959ff5db60c09a84efd66309fe4035 [diff] |
dm cache: boost promotion of blocks that will be overwritten When considering whether to move a block to the cache we already give preferential treatment to discarded blocks, since they are cheap to promote (no read of the origin required since the data is junk). The same is true of blocks that are about to be completely overwritten, so we likewise boost their promotion chances. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>