From: NeilBrown <neilb@suse.de>
Date: Wed, 11 May 2011 04:38:44 +0000 (+1000)
Subject: md: make error_handler functions more uniform and correct.
X-Git-Tag: v3.0-rc1~358^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f8d0c77cef5849433dd7beb0bd97e573cc4a6a3;p=pandora-kernel.git

md: make error_handler functions more uniform and correct.

- there is no need to test_bit Faulty, as that was already done in
  md_error which is the only caller of these functions.
- MD_CHANGE_DEVS should be set *after* faulty is set to ensure
  metadata is updated correctly.
- spinlock should be held while updating ->degraded.

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