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authorMichael S. Tsirkin <mst@redhat.com>2015-03-05 13:24:41 +1030
committerRusty Russell <rusty@rustcorp.com.au>2015-03-10 11:48:28 +1030
commit88660f7fb94cda1f8f63ee92bfcd0db39a6361e2 (patch)
treedb1aef23fcc5c191a3b4fc1255aee5d46b50558f /virt
parenteeb8a7e8bb123e84daeef84f5a2eab99ad2839a2 (diff)
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virtio_balloon: set DRIVER_OK before using device
virtio spec requires that all drivers set DRIVER_OK before using devices. While balloon isn't yet included in the virtio 1 spec, previous spec versions also required this. virtio balloon might violate this rule: probe calls kthread_run before setting DRIVER_OK, which might run immediately and cause balloon to inflate/deflate. To fix, call virtio_device_ready before running the kthread. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org
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