From: NeilBrown <neilb@suse.de>
Date: Thu, 28 Jul 2011 01:31:48 +0000 (+1000)
Subject: md: add 'write_error' flag to component devices.
X-Git-Tag: v3.1-rc1~131^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7a9d443bc8a75a24873c0506f50051edfedc714;p=pandora-kernel.git

md: add 'write_error' flag to component devices.

If a device has ever seen a write error, we will want to handle
known-bad-blocks differently.
So create an appropriate state flag and export it via sysfs.

Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
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