From 00b2d9d6d05b56fc1d77071ff8ccbd2c65b48dec Mon Sep 17 00:00:00 2001
From: Vaughan Cao <vaughan.cao@oracle.com>
Date: Thu, 29 Aug 2013 10:00:37 +0800
Subject: [PATCH] [SCSI] sg: no need sg_open_exclusive_lock

Open exclusive check is protected by o_sem, no need sg_open_exclusive_lock.
@exclude is used to record which type of rwsem we are holding.

Signed-off-by: Vaughan Cao <vaughan.cao@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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