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(parent: 4baf1e3) | patch
virtio_blk: enable VQs early
authorMichael S. Tsirkin <mst@redhat.com>
Tue, 14 Oct 2014 23:52:30 +0000 (10:22 +1030)
committerRusty Russell <rusty@rustcorp.com.au>
Tue, 14 Oct 2014 23:55:02 +0000 (10:25 +1030)
commit7a11370e5e6c26566904bb7f08281093a3002ff2
tree2d63d93824a632ed1ca62f081d85e87a8ef214a4tree
parent4baf1e33d0842c9673fef4af207d4b74da8d0126commit | diff
virtio_blk: enable VQs early

virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after probe returns, virtio block violated this
rule by calling add_disk, which causes the VQ to be used directly within
probe.

To fix, call virtio_device_ready before using VQs.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
drivers/block/virtio_blk.c diff | blob | history
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