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-rw-r--r--block/nbd-client.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/block/nbd-client.c b/block/nbd-client.c
index 0922b78292..7d698cb619 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -43,6 +43,17 @@ static void nbd_recv_coroutines_enter_all(NbdClientSession *s)
}
}
+static void nbd_teardown_connection(NbdClientSession *client)
+{
+ /* finish any pending coroutines */
+ shutdown(client->sock, 2);
+ nbd_recv_coroutines_enter_all(client);
+
+ qemu_aio_set_fd_handler(client->sock, NULL, NULL, NULL);
+ closesocket(client->sock);
+ client->sock = -1;
+}
+
static void nbd_reply_ready(void *opaque)
{
NbdClientSession *s = opaque;
@@ -78,7 +89,7 @@ static void nbd_reply_ready(void *opaque)
}
fail:
- nbd_recv_coroutines_enter_all(s);
+ nbd_teardown_connection(s);
}
static void nbd_restart_write(void *opaque)
@@ -324,7 +335,7 @@ int nbd_client_session_co_discard(NbdClientSession *client, int64_t sector_num,
}
-static void nbd_teardown_connection(NbdClientSession *client)
+void nbd_client_session_close(NbdClientSession *client)
{
struct nbd_request request = {
.type = NBD_CMD_DISC,
@@ -332,22 +343,14 @@ static void nbd_teardown_connection(NbdClientSession *client)
.len = 0
};
- nbd_send_request(client->sock, &request);
-
- /* finish any pending coroutines */
- shutdown(client->sock, 2);
- nbd_recv_coroutines_enter_all(client);
-
- qemu_aio_set_fd_handler(client->sock, NULL, NULL, NULL);
- closesocket(client->sock);
- client->sock = -1;
-}
-
-void nbd_client_session_close(NbdClientSession *client)
-{
if (!client->bs) {
return;
}
+ if (client->sock == -1) {
+ return;
+ }
+
+ nbd_send_request(client->sock, &request);
nbd_teardown_connection(client);
client->bs = NULL;