From b243ddcbe9be146172baa544dadecebf156eda0e Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 23 Apr 2009 11:05:18 +0900
Subject: [PATCH] block: move rq->start_time initialization to blk_rq_init()

rq->start_time was initialized in init_request_from_bio() so special
requests didn't have start_time set.  This has been okay as start_time
has been used only for fs requests; however, there is no indication of
this actually is the case or not.  Set rq->start_time in blk_rq_init()
and guarantee that all initialized rq's have its start_time set.  This
improves consistency at virtually no cost and future changes will make
use of the timestamp for !bio requests.

[ Impact: rq->start_time is valid for all requests ]

Signed-off-by: Tejun Heo <tj@kernel.org>
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