[PATCH net-next 15/17] virtio_net: xsk: rx: free the unused xsk buffer
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Date: 2024-01-16 09:43:32
Also in:
bpf, virtualization
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Since this will be called in other circumstances(freeze), we must check whether it is xsk's buffer in this function. It cannot be judged outside this function. Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> --- drivers/net/virtio/main.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/net/virtio/main.c b/drivers/net/virtio/main.c
index 35f0daaea7e5..81d390781a4f 100644
--- a/drivers/net/virtio/main.c
+++ b/drivers/net/virtio/main.c@@ -4146,6 +4146,14 @@ void virtnet_rq_free_unused_bufs(struct virtqueue *vq) rq = &vi->rq[i]; while ((buf = virtqueue_detach_unused_buf(vq)) != NULL) { + if (rq->xsk.pool) { + struct xdp_buff *xdp; + + xdp = (struct xdp_buff *)buf; + xsk_buff_free(xdp); + continue; + } + if (virtqueue_get_dma_premapped(rq->vq)) virtnet_rq_unmap(rq, buf, 0);
--
2.32.0.3.g01195cf9f