From: majianpeng <majianpeng@gmail.com>
Date: Tue, 13 Mar 2012 00:21:25 +0000 (+1100)
Subject: md/raid5: use atomic_dec_return() instead of atomic_dec() and atomic_read().
X-Git-Tag: v3.4-rc1~147^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41fe75f60bcd4d698daed3e54bb099227358ce58;p=pandora-kernel.git

md/raid5: use atomic_dec_return() instead of atomic_dec() and atomic_read().

Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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