tree e2909277cc8db445c1d839c4859449a32cbfc08a
parent b140799a11adb6023d5f96712874c37b71dab290
author Pavel Shilovsky <pshilovsky@etersoft.ru> 1348060964 -0700
committer Steve French <smfrench@gmail.com> 1348541193 -0500

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>