From: Pavel Shilovsky <pshilovsky@etersoft.ru>
Date: Wed, 19 Sep 2012 13:22:44 +0000 (-0700)
Subject: CIFS: Turn lock mutex into rw semaphore
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~66^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b4b55a1d9404f51aacf1ff19887eb911484057d;p=pandora-kernel.git

CIFS: Turn lock mutex into rw semaphore

and allow several processes to walk through the lock list and read
can_cache_brlcks value if they are not going to modify them.

Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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