From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 24 Feb 2010 20:22:14 +0000 (-0600)
Subject: virtio: fix balloon without VIRTIO_BALLOON_F_STATS_VQ
X-Git-Tag: v2.6.34-rc1~294^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=169c246a30808588436794e96a97c61a01af9bed;p=pandora-kernel.git

virtio: fix balloon without VIRTIO_BALLOON_F_STATS_VQ

When running under qemu-kvm-0.11.0:

	BUG: unable to handle kernel paging request at 56e58955
	...
	Process vballoon (pid: 1297, ti=c7976000 task=c70a6ca0 task.ti=c7
	...
	Call Trace:
	 [<c88253a3>] ? balloon+0x1b3/0x440 [virtio_balloon]
	 [<c041c2d7>] ? schedule+0x327/0x9d0
	 [<c88251f0>] ? balloon+0x0/0x440 [virtio_balloon]
	 [<c014a2d4>] ? kthread+0x74/0x80
	 [<c014a260>] ? kthread+0x0/0x80
	 [<c0103b36>] ? kernel_thread_helper+0x6/0x30

need_stats_update should be zero-initialized.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Adam Litke <agl@us.ibm.com>
---

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