Fam Zheng 0793169870 virtio: Report real progress in VQ aio poll handler ... In virtio_queue_host_notifier_aio_poll, not all "!virtio_queue_empty()" cases are making true progress. Currently the offending one is virtio-scsi event queue, whose handler does nothing if no event is pending. As a result aio_poll() will spin on the "non-empty" VQ and take 100% host CPU. Fix this by reporting actual progress from virtio queue aio handlers. Reported-by: Ed Swierk <eswierk@skyportsystems.com> Signed-off-by: Fam Zheng <famz@redhat.com> Tested-by: Ed Swierk <eswierk@skyportsystems.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2017-02-17 21:52:30 +02:00
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vhost-backend.h	vhost_net: device IOTLB support	2017-01-18 22:59:53 +02:00
vhost-scsi.h	vhost-scsi: include linux/vhost.h	2015-09-25 12:04:41 +02:00
vhost-vsock.h	vhost-vsock: add virtio sockets device	2016-09-10 00:28:08 +03:00
vhost.h	vhost_net: device IOTLB support	2017-01-18 22:59:53 +02:00
virtio-access.h	virtio: convert to use DMA api	2017-01-10 05:56:58 +02:00
virtio-balloon.h	Clean up ill-advised or unusual header guards	2016-07-12 16:20:46 +02:00
virtio-blk.h	virtio: Report real progress in VQ aio poll handler	2017-02-17 21:52:30 +02:00
virtio-bus.h	virtio: convert to use DMA api	2017-01-10 05:56:58 +02:00
virtio-crypto.h	virtio-crypto: using bh to handle dataq's requests	2016-11-01 19:21:08 +02:00
virtio-gpu.h	virtio-gpu: track and limit host memory allocations	2016-12-20 14:19:08 +01:00
virtio-input.h	Clean up ill-advised or unusual header guards	2016-07-12 16:20:46 +02:00
virtio-net.h	virtio/migration: Migrate virtio-net to VMState	2017-02-13 17:27:14 +00:00
virtio-rng.h	Clean up ill-advised or unusual header guards	2016-07-12 16:20:46 +02:00
virtio-scsi.h	virtio: Report real progress in VQ aio poll handler	2017-02-17 21:52:30 +02:00
virtio-serial.h	virtio-serial: enable virtio console emergency write feature	2016-10-10 01:16:57 +03:00
virtio.h	virtio: Report real progress in VQ aio poll handler	2017-02-17 21:52:30 +02:00