From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 6 Mar 2009 07:55:24 +0000 (+0100)
Subject: block: fix missing bio back/front segment size setting in blk_recount_segments()
X-Git-Tag: v2.6.29-rc8~68^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59247eaea50cc68cc6ce3d3fd3855f3301b65c96;p=pandora-kernel.git

block: fix missing bio back/front segment size setting in blk_recount_segments()

Commit 1e42807918d17e8c93bf14fbb74be84b141334c1 introduced a bug where we
don't get front/back segment sizes in the bio in blk_recount_segments().
Fix this by tracking the back bio as well as the front bio in
__blk_recalc_rq_segments(), this also cleans up the interface by getting
rid of the segment size pointer passing.

Tested-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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