diff options
Diffstat (limited to 'drivers/hv/hv_snapshot.c')
| -rw-r--r-- | drivers/hv/hv_snapshot.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c index 3fba14e88f03..fde45865579a 100644 --- a/drivers/hv/hv_snapshot.c +++ b/drivers/hv/hv_snapshot.c @@ -95,6 +95,12 @@ static void vss_timeout_func(struct work_struct *dummy) hv_poll_channel(vss_transaction.recv_channel, vss_poll_wrapper); } +static void vss_register_done(void) +{ + hv_poll_channel(vss_transaction.recv_channel, vss_poll_wrapper); + pr_debug("VSS: userspace daemon registered\n"); +} + static int vss_handle_handshake(struct hv_vss_msg *vss_msg) { u32 our_ver = VSS_OP_REGISTER1; @@ -105,16 +111,16 @@ static int vss_handle_handshake(struct hv_vss_msg *vss_msg) dm_reg_value = VSS_OP_REGISTER; break; case VSS_OP_REGISTER1: - /* Daemon expects us to reply with our own version*/ - if (hvutil_transport_send(hvt, &our_ver, sizeof(our_ver))) + /* Daemon expects us to reply with our own version */ + if (hvutil_transport_send(hvt, &our_ver, sizeof(our_ver), + vss_register_done)) return -EFAULT; dm_reg_value = VSS_OP_REGISTER1; break; default: return -EINVAL; } - hv_poll_channel(vss_transaction.recv_channel, vss_poll_wrapper); - pr_debug("VSS: userspace daemon ver. %d registered\n", dm_reg_value); + pr_debug("VSS: userspace daemon ver. %d connected\n", dm_reg_value); return 0; } @@ -168,7 +174,7 @@ static void vss_send_op(struct work_struct *dummy) vss_msg->vss_hdr.operation = op; vss_transaction.state = HVUTIL_USERSPACE_REQ; - rc = hvutil_transport_send(hvt, vss_msg, sizeof(*vss_msg)); + rc = hvutil_transport_send(hvt, vss_msg, sizeof(*vss_msg), NULL); if (rc) { pr_warn("VSS: failed to communicate to the daemon: %d\n", rc); if (cancel_delayed_work_sync(&vss_timeout_work)) { |