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virtio_balloon: update_balloon_size(): update correct field

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According to the virtio spec, the device configuration field
that should be updated after an inflation or deflation
operation is the 'actual' field, not the 'num_pages' one.

Commit 855e0c5288 swapped them
in update_balloon_size(). Fix it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: 855e0c5288
This commit is contained in:
Luiz Capitulino 2013-12-05 13:04:10 +10:30 committed by Rusty Russell
parent af91706d5d
commit 3459f11a8b
1 changed files with 1 additions and 1 deletions
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drivers/virtio/virtio_balloon.c
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@ -285,7 +285,7 @@ static void update_balloon_size(struct virtio_balloon *vb)
{
__le32 actual = cpu_to_le32(vb->num_pages);
virtio_cwrite(vb->vdev, struct virtio_balloon_config, num_pages,
virtio_cwrite(vb->vdev, struct virtio_balloon_config, actual,
&actual);
}