From: Joe Thornber Date: Wed, 17 Sep 2014 09:17:39 +0000 (+0100) Subject: dm bio prison: introduce support for locking ranges of blocks X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~22^2~25 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f274d886598c9fd26d2499bf3f68306f170e9db;p=pandora-kernel.git dm bio prison: introduce support for locking ranges of blocks Ranges will be placed in the same cell if they overlap. Range locking is a prerequisite for more efficient multi-block discard support in both the cache and thin-provisioning targets. Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer --- Reading git-diff-tree failed