* [PATCH 1/2] vhost-vsock: remove unused vq variable
@ 2016-12-07 9:52 Peng Tao
2016-12-07 9:52 ` [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue Peng Tao
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Peng Tao @ 2016-12-07 9:52 UTC (permalink / raw)
To: Stefan Hajnoczi; +Cc: kvm, virtualization, netdev, Peng Tao
Signed-off-by: Peng Tao <bergwolf@gmail.com>
---
drivers/vhost/vsock.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 0c23b55..3e01d58 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -195,7 +195,6 @@ static int
vhost_transport_send_pkt(struct virtio_vsock_pkt *pkt)
{
struct vhost_vsock *vsock;
- struct vhost_virtqueue *vq;
int len = pkt->len;
/* Find the vhost_vsock according to guest context id */
@@ -205,8 +204,6 @@ vhost_transport_send_pkt(struct virtio_vsock_pkt *pkt)
return -ENODEV;
}
- vq = &vsock->vqs[VSOCK_VQ_RX];
-
if (pkt->reply)
atomic_inc(&vsock->queued_replies);
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue
2016-12-07 9:52 [PATCH 1/2] vhost-vsock: remove unused vq variable Peng Tao
@ 2016-12-07 9:52 ` Peng Tao
2016-12-07 13:10 ` Stefan Hajnoczi
2016-12-08 16:30 ` David Miller
2016-12-07 13:10 ` [PATCH 1/2] vhost-vsock: remove unused vq variable Stefan Hajnoczi
2016-12-08 16:30 ` David Miller
2 siblings, 2 replies; 6+ messages in thread
From: Peng Tao @ 2016-12-07 9:52 UTC (permalink / raw)
To: Stefan Hajnoczi; +Cc: kvm, virtualization, netdev, Peng Tao
test_and_set_bit() already implies a memory barrier.
Signed-off-by: Peng Tao <bergwolf@gmail.com>
---
drivers/vhost/vhost.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c6f2d89..2663543 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -261,8 +261,8 @@ void vhost_work_queue(struct vhost_dev *dev, struct vhost_work *work)
if (!test_and_set_bit(VHOST_WORK_QUEUED, &work->flags)) {
/* We can only add the work to the list after we're
* sure it was not in the list.
+ * test_and_set_bit() implies a memory barrier.
*/
- smp_mb();
llist_add(&work->node, &dev->work_list);
wake_up_process(dev->worker);
}
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue
2016-12-07 9:52 ` [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue Peng Tao
@ 2016-12-07 13:10 ` Stefan Hajnoczi
2016-12-08 16:30 ` David Miller
1 sibling, 0 replies; 6+ messages in thread
From: Stefan Hajnoczi @ 2016-12-07 13:10 UTC (permalink / raw)
To: Peng Tao; +Cc: netdev, kvm, Stefan Hajnoczi, virtualization
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On Wed, Dec 07, 2016 at 05:52:19PM +0800, Peng Tao wrote:
> test_and_set_bit() already implies a memory barrier.
>
> Signed-off-by: Peng Tao <bergwolf@gmail.com>
> ---
> drivers/vhost/vhost.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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_______________________________________________
Virtualization mailing list
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https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue
2016-12-07 9:52 ` [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue Peng Tao
2016-12-07 13:10 ` Stefan Hajnoczi
@ 2016-12-08 16:30 ` David Miller
1 sibling, 0 replies; 6+ messages in thread
From: David Miller @ 2016-12-08 16:30 UTC (permalink / raw)
To: bergwolf; +Cc: stefanha, kvm, virtualization, netdev
From: Peng Tao <bergwolf@gmail.com>
Date: Wed, 7 Dec 2016 17:52:19 +0800
> test_and_set_bit() already implies a memory barrier.
>
> Signed-off-by: Peng Tao <bergwolf@gmail.com>
Applied.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] vhost-vsock: remove unused vq variable
2016-12-07 9:52 [PATCH 1/2] vhost-vsock: remove unused vq variable Peng Tao
2016-12-07 9:52 ` [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue Peng Tao
@ 2016-12-07 13:10 ` Stefan Hajnoczi
2016-12-08 16:30 ` David Miller
2 siblings, 0 replies; 6+ messages in thread
From: Stefan Hajnoczi @ 2016-12-07 13:10 UTC (permalink / raw)
To: Peng Tao; +Cc: Stefan Hajnoczi, kvm, virtualization, netdev
[-- Attachment #1: Type: text/plain, Size: 230 bytes --]
On Wed, Dec 07, 2016 at 05:52:18PM +0800, Peng Tao wrote:
> Signed-off-by: Peng Tao <bergwolf@gmail.com>
> ---
> drivers/vhost/vsock.c | 3 ---
> 1 file changed, 3 deletions(-)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] vhost-vsock: remove unused vq variable
2016-12-07 9:52 [PATCH 1/2] vhost-vsock: remove unused vq variable Peng Tao
2016-12-07 9:52 ` [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue Peng Tao
2016-12-07 13:10 ` [PATCH 1/2] vhost-vsock: remove unused vq variable Stefan Hajnoczi
@ 2016-12-08 16:30 ` David Miller
2 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2016-12-08 16:30 UTC (permalink / raw)
To: bergwolf; +Cc: stefanha, kvm, virtualization, netdev
From: Peng Tao <bergwolf@gmail.com>
Date: Wed, 7 Dec 2016 17:52:18 +0800
> Signed-off-by: Peng Tao <bergwolf@gmail.com>
Applied.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-12-08 16:30 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2016-12-07 9:52 [PATCH 1/2] vhost-vsock: remove unused vq variable Peng Tao
2016-12-07 9:52 ` [PATCH 2/2] vhost: remove unnecessary smp_mb from vhost_work_queue Peng Tao
2016-12-07 13:10 ` Stefan Hajnoczi
2016-12-08 16:30 ` David Miller
2016-12-07 13:10 ` [PATCH 1/2] vhost-vsock: remove unused vq variable Stefan Hajnoczi
2016-12-08 16:30 ` David Miller
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