From: NeilBrown <neilb@suse.de>
Date: Thu, 28 Jul 2011 01:39:24 +0000 (+1000)
Subject: md/raid10 - avoid reading from known bad blocks - part 3
X-Git-Tag: v3.1-rc1~131^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8dbed5cebdf6796bf2618457b3653cf820934366;p=pandora-kernel.git

md/raid10 - avoid reading from known bad blocks - part 3

When attempting to repair a read error, don't read from
devices with a known bad block.

As we are only reading PAGE_SIZE blocks, we don't try to
narrow down to smaller regions in the hope that only part of this
page is bad - it isn't worth the effort.

Signed-off-by: NeilBrown <neilb@suse.de>
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