From: Joe Thornber Date: Wed, 28 Mar 2012 17:41:27 +0000 (+0100) Subject: dm thin: commit outstanding data every second X-Git-Tag: v3.4-rc1~68^2~9 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=905e51b39a5558706a6ed883fe104de3d417050b;p=pandora-kernel.git dm thin: commit outstanding data every second Commit unwritten data every second to prevent too much building up. Released blocks don't become available until after the next commit (for crash resilience). Prior to this patch commits were only triggered by a message to the target or a REQ_{FLUSH,FUA} bio. This allowed far too big a position to build up. The interval is hard-coded to 1 second. This is a sensible setting. I'm not making this user configurable, since there isn't much to be gained by tweaking this - and a lot lost by setting it far too high. Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- Reading git-diff-tree failed