From: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Date: Fri, 8 Mar 2013 15:07:27 +0000 (+0100)
Subject: sysfs: use atomic_inc_unless_negative in sysfs_get_active
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~138^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3db3c62584fbafee52a068035cc4c57e7b921acf;p=pandora-kernel.git

sysfs: use atomic_inc_unless_negative in sysfs_get_active

It seems that sysfs has an interesting way of doing the same thing.
This removes the cpu_relax unfortunately, but if it's really needed,
it would be better to add this to include/linux/atomic.h to benefit
all atomic ops users.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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