Searched hist:cc229884d3f77ec3b1240e467e0236c3e0647c0c (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/include/linux/ |
| H A D | virtio.h | diff cc229884d3f77ec3b1240e467e0236c3e0647c0c Tue Jul 09 05:19:18 CDT 2013 Michael S. Tsirkin <mst@redhat.com> virtio: support unlocked queue poll
This adds a way to check ring empty state after enable_cb outside any
locks. Will be used by virtio_net.
Note: there's room for more optimization: caller is likely to have a
memory barrier already, which means we might be able to get rid of a
barrier here. Deferring this optimization until we do some
benchmarking.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| /openbmc/linux/drivers/virtio/ |
| H A D | virtio_ring.c | diff cc229884d3f77ec3b1240e467e0236c3e0647c0c Tue Jul 09 05:19:18 CDT 2013 Michael S. Tsirkin <mst@redhat.com> virtio: support unlocked queue poll
This adds a way to check ring empty state after enable_cb outside any
locks. Will be used by virtio_net.
Note: there's room for more optimization: caller is likely to have a
memory barrier already, which means we might be able to get rid of a
barrier here. Deferring this optimization until we do some
benchmarking.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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