| Date | Thu, 23 Apr 2009 00:21:53 -0700 | From | Chris Wright <> | Subject | [patch 093/100] virtio: fix suspend when using virtio_balloon |
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-stable review patch. If anyone has any objections, please let us know. ---------------------
From: Marcelo Tosatti <mtosatti@redhat.com>
upstream commit: 84a139a985300901dfad99bd93c7345d180af860
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 Signed-off-by: Chris Wright <chrisw@sous-sol.org> --- drivers/virtio/virtio_balloon.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- 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)
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