From: Jens Axboe <jens.axboe@oracle.com>
Date: Mon, 30 Oct 2006 18:54:23 +0000 (+0100)
Subject: [PATCH] CFQ: bad locking in changed_ioprio()
X-Git-Tag: v2.6.19-rc4~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1b707d253fe918b92882cff1dbd926b47e14fd2;p=pandora-kernel.git

[PATCH] CFQ: bad locking in changed_ioprio()

When the ioprio code recently got juggled a bit, a bug was introduced.
changed_ioprio() is no longer called with interrupts disabled, so using
plain spin_lock() on the queue_lock is a bug.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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