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(parent: 46f9c2b) | patch
virtio_ring: let virtqueue_{kick()/notify()} return a bool
authorHeinz Graalfs <graalfs@linux.vnet.ibm.com>
Mon, 28 Oct 2013 23:09:48 +0000 (09:39 +1030)
committerRusty Russell <rusty@rustcorp.com.au>
Tue, 29 Oct 2013 00:58:12 +0000 (11:28 +1030)
commit5b1bf7cb673ade0ab5c75f200dce911d9fb91c21
treec90e760edaf94d91d94ff366e881fe5562e4478dtree | snapshot (tar.gz zip)
parent46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37commit | diff
virtio_ring: let virtqueue_{kick()/notify()} return a bool

virtqueue_{kick()/notify()} should exploit the new host notification API.
If the notify call returned with a negative value the host kick failed
(e.g. a kick triggered after a device was hot-unplugged). In this case
the virtqueue is set to 'broken' and false is returned, otherwise true.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
drivers/virtio/virtio_ring.c diff | blob | blame | history
include/linux/virtio.h diff | blob | blame | history