From: Mikulas Patocka Date: Mon, 22 Jun 2009 09:12:19 +0000 (+0100) Subject: dm: remove EOPNOTSUPP for barriers X-Git-Tag: v2.6.31-rc1~8^2~32 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fdb9572b73abd008b80931c3b1f157dac3888bb9;p=pandora-kernel.git dm: remove EOPNOTSUPP for barriers If the underlying device doesn't support barriers and dm receives a barrier, it waits until all requests on that device drain so it no longer needs to report -EOPNOTSUPP to the caller. This patch deals with the confusing situation when moving a volume from one physical device to another triggers an EOPNOTSUPP on a volume that didn't report it before. Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon --- Reading git-diff-tree failed