On Mon, Nov 15, 2021 at 06:29:58PM +0300, Andrey Ryabinin wrote:
vhost_poll_flush() is a simple wrapper around vhost_work_dev_flush(). It gives wrong impression that we are doing some work over vhost_poll, while in fact it flushes vhost_poll->dev. It only complicate understanding of the code and leads to mistakes like flushing the same vhost_dev several times in a row.Just remove vhost_poll_flush() and call vhost_work_dev_flush() directly. Signed-off-by: Andrey Ryabinin <a...@yandex-team.com> --- drivers/vhost/net.c | 4 ++-- drivers/vhost/test.c | 2 +- drivers/vhost/vhost.c | 12 ++---------- drivers/vhost/vsock.c | 2 +- 4 files changed, 6 insertions(+), 14 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 28ef323882fb..11221f6d11b8 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -1375,8 +1375,8 @@ static void vhost_net_stop(struct vhost_net *n, struct socket **tx_sock, static void vhost_net_flush_vq(struct vhost_net *n, int index) { - vhost_poll_flush(n->poll + index); - vhost_poll_flush(&n->vqs[index].vq.poll); + vhost_work_dev_flush(n->poll[index].dev); + vhost_work_dev_flush(n->vqs[index].vq.poll.dev); } static void vhost_net_flush(struct vhost_net *n) diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index a09dedc79f68..1a8ab1d8cb1c 100644 --- a/drivers/vhost/test.c +++ b/drivers/vhost/test.c @@ -146,7 +146,7 @@ static void vhost_test_stop(struct vhost_test *n, void **privatep) static void vhost_test_flush_vq(struct vhost_test *n, int index) { - vhost_poll_flush(&n->vqs[index].poll); + vhost_work_dev_flush(n->vqs[index].poll.dev); } static void vhost_test_flush(struct vhost_test *n) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 59edb5a1ffe2..ca088481da0e 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -245,14 +245,6 @@ void vhost_work_dev_flush(struct vhost_dev *dev) } EXPORT_SYMBOL_GPL(vhost_work_dev_flush); -/* Flush any work that has been scheduled. When calling this, don't hold any - * locks that are also used by the callback. */ -void vhost_poll_flush(struct vhost_poll *poll) -{ - vhost_work_dev_flush(poll->dev); -} -EXPORT_SYMBOL_GPL(vhost_poll_flush); - void vhost_work_queue(struct vhost_dev *dev, struct vhost_work *work) { if (!dev->worker) @@ -663,7 +655,7 @@ void vhost_dev_stop(struct vhost_dev *dev) for (i = 0; i < dev->nvqs; ++i) { if (dev->vqs[i]->kick && dev->vqs[i]->handle_kick) { vhost_poll_stop(&dev->vqs[i]->poll); - vhost_poll_flush(&dev->vqs[i]->poll); + vhost_work_dev_flush(dev->vqs[i]->poll.dev);
Not related to this patch, but while looking at vhost-vsock I'm wondering if we can do the same here in vhost_dev_stop(), I mean move vhost_work_dev_flush() outside the loop and and call it once. (In another patch eventually)
Stefano _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
