From 19d671695e1931ebfd75b2b888778201aefe35ca Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Fri, 23 Dec 2011 10:17:57 +1100
Subject: [PATCH] md/raid1: Mark device want_replacement when we see a write
 error.

Now that WantReplacement drives are replaced cleanly, mark a drive
as want_replacement when we see a write error.  It might get failed soon so
the WantReplacement flag is irrelevant, but if the write error is recorded
in the bad block log, we still want to activate any spare that might
be available.

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