From: Tao Ma <tao.ma@oracle.com>
Date: Mon, 18 Aug 2008 09:38:51 +0000 (+0800)
Subject: ocfs2: Add xattr lookup code xattr btrees
X-Git-Tag: v2.6.28-rc1~572^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=589dc2602f2a1b7fa5e59b90f548af189f128d77;p=pandora-kernel.git

ocfs2: Add xattr lookup code xattr btrees

Add code to lookup a given extended attribute in the xattr btree. Lookup
follows this general scheme:

1. Use ocfs2_xattr_get_rec to find the xattr extent record

2. Find the xattr bucket within the extent which may contain this xattr

3. Iterate the bucket to find the xattr. In ocfs2_xattr_block_get(), we need
   to recalcuate the block offset and name offset for the right position of
   name/value.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
---

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