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Date: Tue, 10 Aug 2021 14:40:32 +0300 From: Arseny Krasnov <arseny.krasnov@...persky.com> To: Stefan Hajnoczi <stefanha@...hat.com>, Stefano Garzarella <sgarzare@...hat.com>, "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Arseny Krasnov <arseny.krasnov@...persky.com>, Colin Ian King <colin.king@...onical.com>, Norbert Slusarek <nslusarek@....net>, Andra Paraschiv <andraprs@...zon.com> CC: <kvm@...r.kernel.org>, <virtualization@...ts.linux-foundation.org>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <stsp2@...dex.ru>, <oxffffaa@...il.com> Subject: [RFC PATCH v2 3/5] virito/vsock: support MSG_EOR bit processing If packet has 'EOR' bit - set MSG_EOR in 'recvmsg()' flags. Signed-off-by: Arseny Krasnov <arseny.krasnov@...persky.com> --- net/vmw_vsock/virtio_transport_common.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 4d5a93beceb0..59ee1be5a6dd 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -76,8 +76,12 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info, goto out; if (msg_data_left(info->msg) == 0 && - info->type == VIRTIO_VSOCK_TYPE_SEQPACKET) + info->type == VIRTIO_VSOCK_TYPE_SEQPACKET) { pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM); + + if (info->msg->msg_flags & MSG_EOR) + pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR); + } } trace_virtio_transport_alloc_pkt(src_cid, src_port, @@ -460,6 +464,9 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOM) { msg_ready = true; vvs->msg_count--; + + if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOR) + msg->msg_flags |= MSG_EOR; } virtio_transport_dec_rx_pkt(vvs, pkt); -- 2.25.1
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