From: Jens Axboe <jens.axboe@oracle.com>
Date: Sun, 14 Sep 2008 12:55:09 +0000 (-0700)
Subject: block: unify request timeout handling
X-Git-Tag: v2.6.28-rc1~733^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=242f9dcb8ba6f68fcd217a119a7648a4f69290e9;p=pandora-kernel.git

block: unify request timeout handling

Right now SCSI and others do their own command timeout handling.
Move those bits to the block layer.

Instead of having a timer per command, we try to be a bit more clever
and simply have one per-queue. This avoids the overhead of having to
tear down and setup a timer for each command, so it will result in a lot
less timer fiddling.

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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