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Commit 84a139a9 authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Rusty Russell
Browse files

virtio: fix suspend when using virtio_balloon 



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: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
parent a489f0b5

drivers/virtio/virtio_balloon.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -190,7 +190,8 @@ static int balloon(void *_vballoon) 
		try_to_freeze();

		try_to_freeze();

		wait_event_interruptible(vb->config_change,

		wait_event_interruptible(vb->config_change,

					 (diff = towards_target(vb)) != 0

					 (diff = towards_target(vb)) != 0

					 || kthread_should_stop());

					 || kthread_should_stop()

					 || freezing(current));

		if (diff > 0)

		if (diff > 0)

			fill_balloon(vb, diff);

			fill_balloon(vb, diff);

		else if (diff < 0)

		else if (diff < 0)