From: NeilBrown <neilb@suse.de>
Date: Tue, 3 Jul 2012 02:13:29 +0000 (+1000)
Subject: md/raid5: fix refcount problem when blocked_rdev is set.
X-Git-Tag: v3.5-rc6~24^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f066c632fcfd2a33f2eb7077c15c630e9f5ea5b;p=pandora-kernel.git

md/raid5: fix refcount problem when blocked_rdev is set.

commit 43220aa0f22cd3ce5b30246d50ccd696d119edea
    md/raid5: fix a hang on device failure.

fixed a hang, but introduced a refcounting in-balance so
that if the presence of bad-blocks ever caused an rdev to
be 'blocked' we would increment the refcount on the rdev and
never decrement it.

So added the needed rdev_dec_pending when md_wait_for_blocked_rdev
is not called.

Reported-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

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