From: Jens Axboe <jaxboe@fusionio.com>
Date: Mon, 18 Apr 2011 07:59:55 +0000 (+0200)
Subject: block: drop queue lock before calling __blk_run_queue() for kblockd punt
X-Git-Tag: v2.6.39-rc4~3^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99e22598e9a8e0a996d69c8c0f6b7027cb57720a;p=pandora-kernel.git

block: drop queue lock before calling __blk_run_queue() for kblockd punt

If we know we are going to punt to kblockd, we can drop the queue
lock before calling into __blk_run_queue() since it only does a
safe bit test and a workqueue call. Since kblockd needs to grab
this very lock as one of the first things it does, it's a good
optimization to drop the lock before waking kblockd.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---

Reading git-diff-tree failed