tree ad890ab1f667b7528e347e1886a9b7daf6f6c168
parent 4be3bd7849165e7efa6b0b35a23d6a3598d97465
author Mikulas Patocka <mpatocka@redhat.com> 1248377437 +0100
committer Alasdair G Kergon <agk@redhat.com> 1248377437 +0100

dm raid1: wake kmirrord when requeueing delayed bios after remote recovery

The recent commit 7513c2a761d69d2a93f17146b3563527d3618ba0 (dm raid1:
add is_remote_recovering hook for clusters) changed do_writes() to
update the ms->writes list but forgot to wake up kmirrord to process it.

The rule is that when anything is being added on ms->reads, ms->writes
or ms->failures and the list was empty before we must call
wakeup_mirrord (for immediate processing) or delayed_wake (for delayed
processing).  Otherwise the bios could sit on the list indefinitely.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
CC: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>