| commit | c666601a935b94cc0f3310339411b6940de751ba | [log] [tgz] |
|---|---|---|
| author | Josh Durgin <josh.durgin@dreamhost.com> | Mon Nov 21 17:11:12 2011 -0800 |
| committer | Alex Elder <elder@dreamhost.com> | Thu Mar 22 10:47:52 2012 -0500 |
| tree | da8afdd9c553dc349f1a1cdd94ab05d4b5dc5449 | |
| parent | 3489b42a72a41d477665ab37f196ae9257180abb [diff] |
rbd: move snap_rwsem to the device, rename to header_rwsem A new temporary header is allocated each time the header changes, but only the changed properties are copied over. We don't need a new semaphore for each header update. This addresses http://tracker.newdream.net/issues/2174 Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com> Reviewed-by: Alex Elder <elder@dreamhost.com>