From: Shaohua Li <shaohua.li@intel.com>
Date: Fri, 7 Jan 2011 07:46:59 +0000 (+0100)
Subject: block cfq: don't use atomic_t for cfq_queue
X-Git-Tag: v2.6.38-rc1~231^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=30d7b9448f03f2c82d0fd44738674cc156a8ce0a;p=pandora-kernel.git

block cfq: don't use atomic_t for cfq_queue

cfq_queue->ref is used with queue_lock hold, so ref doesn't need to be an atomic
and atomic operation is slower.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---

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