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path: root/drivers/vhost/vsock.c
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Diffstat (limited to 'drivers/vhost/vsock.c')
-rw-r--r--drivers/vhost/vsock.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index feaf650affbe..938aefbc75ec 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -114,7 +114,7 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
size_t nbytes;
size_t iov_len, payload_len;
int head;
- bool restore_flag = false;
+ u32 flags_to_restore = 0;
spin_lock_bh(&vsock->send_pkt_list_lock);
if (list_empty(&vsock->send_pkt_list)) {
@@ -179,15 +179,20 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
* created dynamically and are initialized with header
* of current packet(except length). But in case of
* SOCK_SEQPACKET, we also must clear message delimeter
- * bit(VIRTIO_VSOCK_SEQ_EOM). Otherwise, instead of one
- * packet with delimeter(which marks end of message),
- * there will be sequence of packets with delimeter
- * bit set. After initialized header will be copied to
- * rx buffer, this bit will be restored.
+ * bit (VIRTIO_VSOCK_SEQ_EOM) and MSG_EOR bit
+ * (VIRTIO_VSOCK_SEQ_EOR) if set. Otherwise,
+ * there will be sequence of packets with these
+ * bits set. After initialized header will be copied to
+ * rx buffer, these required bits will be restored.
*/
if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOM) {
pkt->hdr.flags &= ~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM);
- restore_flag = true;
+ flags_to_restore |= VIRTIO_VSOCK_SEQ_EOM;
+
+ if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOR) {
+ pkt->hdr.flags &= ~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR);
+ flags_to_restore |= VIRTIO_VSOCK_SEQ_EOR;
+ }
}
}
@@ -224,8 +229,7 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
* to send it with the next available buffer.
*/
if (pkt->off < pkt->len) {
- if (restore_flag)
- pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM);
+ pkt->hdr.flags |= cpu_to_le32(flags_to_restore);
/* We are queueing the same virtio_vsock_pkt to handle
* the remaining bytes, and we want to deliver it