From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Wed, 16 Sep 2015 14:20:05 +0000 (-0400)
Subject: md/raid1: Avoid raid1 resync getting stuck
X-Git-Tag: omap-for-v4.4/cleanup-pt1~7^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8ff8bf09ff49733534ff3cee91bde030186055f;p=pandora-kernel.git

md/raid1: Avoid raid1 resync getting stuck

close_sync() needs to set conf->next_resync to a large, but safe value
below MaxSector and use it to determine whether or not to set
start_next_window in wait_barrier()

Solution suggested by Neil Brown.

Reported-by: Nate Dailey <nate.dailey@stratus.com>
Tested-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.com>
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