From: Tao Ma <tao.ma@oracle.com>
Date: Wed, 25 Feb 2009 01:40:26 +0000 (-0800)
Subject: ocfs2: lock the metaecc process for xattr bucket
X-Git-Tag: v2.6.29-rc7~44^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8b9cf9a7cd25ba65166116d0a958f0bc709f0a7;p=pandora-kernel.git

ocfs2: lock the metaecc process for xattr bucket

For other metadata in ocfs2, metaecc is checked in ocfs2_read_blocks
with io_mutex held. While for xattr bucket, it is calculated by
the whole buckets. So we have to add a spin_lock to prevent multiple
processes calculating metaecc.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Tested-by: Tristan Ye <tristan.ye@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
---

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