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| author | Joe Thornber <ejt@redhat.com> | 2014-10-06 22:30:06 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-11-10 21:25:26 +0100 |
| commit | a195db2d29a47c2c3a61386009bd400df18c86cf (patch) | |
| tree | 17f9c41a52fa28c6a03840a0df24a3781c280217 /drivers/md/dm-thin-metadata.h | |
| parent | dm bufio: evict buffers that are past the max age but retain some buffers (diff) | |
| download | linux-a195db2d29a47c2c3a61386009bd400df18c86cf.tar.xz linux-a195db2d29a47c2c3a61386009bd400df18c86cf.zip | |
dm bio prison: switch to using a red black tree
Previously it was using a fixed sized hash table. There are times
when very many concurrent cells are held (such as when processing a very
large discard). When this happens the hash table performance becomes
very poor.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-thin-metadata.h')
0 files changed, 0 insertions, 0 deletions