From: Marcelo Tosatti <mtosatti@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: virtualization@lists.osdl.org
Subject: virtio-balloon: check for freezer in kthread loop
Date: Thu, 16 Apr 2009 21:14:04 -0300 [thread overview]
Message-ID: <20090417001404.GA20251@amt.cnet> (raw)
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>
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 5926826..9c76a06 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -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)
next reply other threads:[~2009-04-17 0:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-17 0:14 Marcelo Tosatti [this message]
2009-04-19 13:44 ` virtio-balloon: check for freezer in kthread loop Rusty Russell
2009-04-19 14:00 ` Marcelo Tosatti
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