From: Stefano Garzarella <sgarzare@redhat.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
Stefan Hajnoczi <stefanha@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
"Michael S . Tsirkin" <mst@redhat.com>
Subject: [PATCH 4/4] vsock/virtio: free used buffers during the .remove()
Date: Tue, 28 May 2019 12:56:23 +0200 [thread overview]
Message-ID: <20190528105623.27983-5-sgarzare@redhat.com> (raw)
In-Reply-To: <20190528105623.27983-1-sgarzare@redhat.com>
Before this patch, we only freed unused buffers, but there may
still be used buffers to be freed.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
net/vmw_vsock/virtio_transport.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index ad093ce96693..6a2afb989562 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -669,6 +669,18 @@ static void virtio_vsock_flush_works(struct virtio_vsock *vsock)
flush_work(&vsock->send_pkt_work);
}
+static void virtio_vsock_free_buf(struct virtqueue *vq)
+{
+ struct virtio_vsock_pkt *pkt;
+ unsigned int len;
+
+ while ((pkt = virtqueue_detach_unused_buf(vq)))
+ virtio_transport_free_pkt(pkt);
+
+ while ((pkt = virtqueue_get_buf(vq, &len)))
+ virtio_transport_free_pkt(pkt);
+}
+
static void virtio_vsock_remove(struct virtio_device *vdev)
{
struct virtio_vsock *vsock = vdev->priv;
@@ -702,13 +714,11 @@ static void virtio_vsock_remove(struct virtio_device *vdev)
vdev->config->reset(vdev);
mutex_lock(&vsock->rx_lock);
- while ((pkt = virtqueue_detach_unused_buf(vsock->vqs[VSOCK_VQ_RX])))
- virtio_transport_free_pkt(pkt);
+ virtio_vsock_free_buf(vsock->vqs[VSOCK_VQ_RX]);
mutex_unlock(&vsock->rx_lock);
mutex_lock(&vsock->tx_lock);
- while ((pkt = virtqueue_detach_unused_buf(vsock->vqs[VSOCK_VQ_TX])))
- virtio_transport_free_pkt(pkt);
+ virtio_vsock_free_buf(vsock->vqs[VSOCK_VQ_TX]);
mutex_unlock(&vsock->tx_lock);
spin_lock_bh(&vsock->send_pkt_list_lock);
--
2.20.1
next prev parent reply other threads:[~2019-05-28 10:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-28 10:56 [PATCH 0/4] vsock/virtio: several fixes in the .probe() and .remove() Stefano Garzarella
2019-05-28 10:56 ` [PATCH 1/4] vsock/virtio: fix locking around 'the_virtio_vsock' Stefano Garzarella
2019-05-30 4:28 ` David Miller
2019-05-30 10:27 ` Stefano Garzarella
2019-05-28 10:56 ` [PATCH 2/4] vsock/virtio: stop workers during the .remove() Stefano Garzarella
2019-05-28 10:56 ` [PATCH 3/4] vsock/virtio: fix flush of works " Stefano Garzarella
2019-05-29 3:22 ` Jason Wang
2019-05-29 10:58 ` Stefano Garzarella
2019-05-30 9:46 ` Jason Wang
2019-05-30 10:10 ` Stefano Garzarella
2019-05-30 11:59 ` Jason Wang
2019-05-31 8:18 ` Stefano Garzarella
2019-05-31 9:56 ` Jason Wang
2019-06-06 8:11 ` Stefano Garzarella
2019-06-13 8:57 ` Jason Wang
2019-06-27 10:26 ` Stefano Garzarella
2019-05-28 10:56 ` Stefano Garzarella [this message]
2019-06-10 13:09 ` [PATCH 0/4] vsock/virtio: several fixes in the .probe() and .remove() Stefan Hajnoczi
2019-06-27 10:05 ` Stefano Garzarella
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