From: Tejun Heo <tj@kernel.org>
Date: Tue, 25 Jan 2011 11:43:49 +0000 (+0100)
Subject: block: add REQ_FLUSH_SEQ
X-Git-Tag: v2.6.39-rc1~80^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=414b4ff5eecff0097d09c4a7da12e435fd503692;p=pandora-kernel.git

block: add REQ_FLUSH_SEQ

rq == &q->flush_rq was used to determine whether a rq is part of a
flush sequence, which worked because all requests in a flush sequence
were sequenced using the single dedicated request.  This is about to
change, so introduce REQ_FLUSH_SEQ flag to distinguish flush sequence
requests.

This patch doesn't cause any behavior change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---

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