From: majianpeng <majianpeng@gmail.com>
Date: Tue, 12 Jun 2012 00:31:10 +0000 (+0800)
Subject: md/raid5: Do not add data_offset before call to is_badblock
X-Git-Tag: v3.5-rc6~24^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c0544e255dd6582a9899572e120fb55d9f672a4;p=pandora-kernel.git

md/raid5: Do not add data_offset before call to is_badblock

In chunk_aligned_read() we are adding data_offset before calling
is_badblock.  But is_badblock also adds data_offset, so that is bad.

So move the addition of data_offset to after the call to
is_badblock.

This bug was introduced by commit 31c176ecdf3563140e639
     md/raid5: avoid reading from known bad blocks.
which first appeared in 3.0.  So that patch is suitable for any
-stable kernel from 3.0.y onwards.  However it will need minor
revision for most of those (as the comment didn't appear until
recently).

Cc: stable@vger.kernel.org
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

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