From: Joel Becker <joel.becker@oracle.com>
Date: Thu, 13 Nov 2008 22:49:14 +0000 (-0800)
Subject: ocfs2: Wrap group descriptor reads in a dedicated function.
X-Git-Tag: v2.6.29-rc1~505^2~103
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68f64d471be38631d7196b938d9809802dd467fa;p=pandora-kernel.git

ocfs2: Wrap group descriptor reads in a dedicated function.

We have a clean call for validating group descriptors, but every place
that wants the always does a read_block()+validate() call pair.  Create
a toplevel ocfs2_read_group_descriptor() that does the right
thing.  This allows us to leverage the single call point later for
fancier handling.  We also add validation of gd->bg_generation against
the superblock and gd->bg_blkno against the block we thought we read.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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