From fa5a0eb3b074ca89690da3e13cf44b6bab3f024c Mon Sep 17 00:00:00 2001
From: WeiWei Wang <wangww631@huawei.com>
Date: Wed, 24 Jun 2015 16:55:15 -0700
Subject: [PATCH] ocfs2: remove OCFS2_IOCB_SEM lock type in direct io

In ocfs2 direct read/write, OCFS2_IOCB_SEM lock type is used to protect
inode->i_alloc_sem rw semaphore lock in the earlier kernel version.
However, in the latest kernel, inode->i_alloc_sem rw semaphore lock is not
used at all, so OCFS2_IOCB_SEM lock type needs to be removed.

Signed-off-by: Weiwei Wang <wangww631@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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