From: Stefano Garzarella <sgarzare@redhat.com>
To: Andrey Ryabinin <arbn@yandex-team.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/6] vhost_vsock: simplify vhost_vsock_flush()
Date: Tue, 16 Nov 2021 15:35:14 +0100 [thread overview]
Message-ID: <20211116143514.2jvemtjrds4453me@steredhat> (raw)
In-Reply-To: <20211115153003.9140-4-arbn@yandex-team.com>
On Mon, Nov 15, 2021 at 06:30:01PM +0300, Andrey Ryabinin wrote:
>vhost_vsock_flush() calls vhost_work_dev_flush(vsock->vqs[i].poll.dev)
>before vhost_work_dev_flush(&vsock->dev). This seems pointless
>as vsock->vqs[i].poll.dev is the same as &vsock->dev and several flushes
>in a row doesn't do anything useful, one is just enough.
>
>Signed-off-by: Andrey Ryabinin <arbn@yandex-team.com>
>---
> drivers/vhost/vsock.c | 5 -----
> 1 file changed, 5 deletions(-)
>
>diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
>index b0361ebbd695..b4dcefbb7e60 100644
>--- a/drivers/vhost/vsock.c
>+++ b/drivers/vhost/vsock.c
>@@ -707,11 +707,6 @@ static int vhost_vsock_dev_open(struct inode *inode, struct file *file)
>
> static void vhost_vsock_flush(struct vhost_vsock *vsock)
> {
>- int i;
>-
>- for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++)
>- if (vsock->vqs[i].handle_kick)
>- vhost_work_dev_flush(vsock->vqs[i].poll.dev);
> vhost_work_dev_flush(&vsock->dev);
> }
>
>--
>2.32.0
>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
next prev parent reply other threads:[~2021-11-16 14:35 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-15 15:29 [PATCH 1/6] vhost: get rid of vhost_poll_flush() wrapper Andrey Ryabinin
2021-11-15 15:29 ` [PATCH 2/6] vhost_net: get rid of vhost_net_flush_vq() and extra flush calls Andrey Ryabinin
2021-11-16 14:33 ` Stefano Garzarella
2021-11-19 10:31 ` Andrey Ryabinin
2021-11-15 15:30 ` [PATCH 3/6] vhost_test: remove vhost_test_flush_vq() Andrey Ryabinin
2021-11-15 15:30 ` [PATCH 4/6] vhost_vsock: simplify vhost_vsock_flush() Andrey Ryabinin
2021-11-16 14:35 ` Stefano Garzarella [this message]
2021-11-15 15:30 ` [PATCH 5/6] vhost_net: remove NOP vhost_net_flush() in vhost_net_release() Andrey Ryabinin
2021-11-15 15:30 ` [PATCH 6/6] vhost_net: use RCU callbacks instead of synchronize_rcu() Andrey Ryabinin
2021-11-16 5:00 ` Jason Wang
2021-11-19 11:32 ` Andrey Ryabinin
2021-11-22 2:48 ` Jason Wang
2021-11-22 9:37 ` Michael S. Tsirkin
2021-11-22 15:12 ` Andrey Ryabinin
2021-11-16 14:33 ` [PATCH 1/6] vhost: get rid of vhost_poll_flush() wrapper Stefano Garzarella
2021-12-03 17:45 ` Mike Christie
2021-11-16 14:39 ` Denis Kirjanov
2021-11-16 14:41 ` Stefano Garzarella
2021-11-19 10:30 ` Andrey Ryabinin
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