From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 11 Feb 2011 10:08:00 +0000 (+0100)
Subject: block: share request flush fields with  elevator_private
X-Git-Tag: v2.6.39-rc1~80^2~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c186794dbb466b45cf40f942f2d09d6d5b4b0e42;p=pandora-kernel.git

block: share request flush fields with  elevator_private

Flush requests are never put on the IO scheduler.  Convert request
structure's elevator_private* into an array and have the flush fields
share a union with it.

Reclaim the space lost in 'struct request' by moving 'completion_data'
back in the union with 'rb_node'.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---

Reading git-diff-tree failed