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virtio: fix suspend when using virtio_balloon

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Break out of wait_event_interruptible() if freezing has been requested,
in the vballoon thread. Without this change vballoon refuses to stop and
the system can't suspend.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
This commit is contained in:
Marcelo Tosatti 2009-04-16 21:14:04 -03:00 committed by Rusty Russell
parent a489f0b555
commit 84a139a985
1 changed files with 2 additions and 1 deletions
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3
drivers/virtio/virtio_balloon.c
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@ -190,7 +190,8 @@ static int balloon(void *_vballoon)
try_to_freeze();
wait_event_interruptible(vb->config_change,
(diff = towards_target(vb)) != 0
|| kthread_should_stop());
|| kthread_should_stop()
|| freezing(current));
if (diff > 0)
fill_balloon(vb, diff);
else if (diff < 0)