virtio-balloon: Fix memory leak when unloading while hinting is in progress

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commit 6c22dc61c7 upstream.

When unloading the driver while hinting is in progress, we will not
release the free page blocks back to MM, resulting in a memory leak.

Fixes: 86a559787e ("virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT")
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Wei Wang <wei.w.wang@intel.com>
Cc: Liang Li <liang.z.li@intel.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20200205163402.42627-2-david@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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David Hildenbrand 2020-02-05 17:34:00 +01:00 • committed by Greg Kroah-Hartman

parent cf206bca3d

commit 65ba600888

1 changed files with 4 additions and 0 deletions

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drivers/virtio/virtio_balloon.c

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