[PATCH v2 09/10] block/nbd: introduce nbd_client_connection_new()

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

This is the last step of creating bs-independing nbd connection
interface. With next commit we can finally move it to separate file.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 block/nbd.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/block/nbd.c b/block/nbd.c
index ab3ef13366..376ab9f92d 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -336,16 +336,19 @@ static bool nbd_client_connecting_wait(BDRVNBDState *s)
     return qatomic_load_acquire(&s->state) == NBD_CLIENT_CONNECTING_WAIT;
 }
 
-static void nbd_init_connect_thread(BDRVNBDState *s)
+static NBDClientConnection *
+nbd_client_connection_new(const SocketAddress *saddr)
 {
-    s->conn = g_new(NBDClientConnection, 1);
+    NBDClientConnection *conn = g_new(NBDClientConnection, 1);
 
-    *s->conn = (NBDClientConnection) {
-        .saddr = QAPI_CLONE(SocketAddress, s->saddr),
+    *conn = (NBDClientConnection) {
+        .saddr = QAPI_CLONE(SocketAddress, saddr),
         .refcnt = 1,
     };
 
-    qemu_mutex_init(&s->conn->mutex);
+    qemu_mutex_init(&conn->mutex);
+
+    return conn;
 }
 
 static void nbd_client_connection_unref(NBDClientConnection *conn)
@@ -2211,7 +2214,7 @@ static int nbd_open(BlockDriverState *bs, QDict *options, int flags,
     /* successfully connected */
     s->state = NBD_CLIENT_CONNECTED;
 
-    nbd_init_connect_thread(s);
+    s->conn = nbd_client_connection_new(s->saddr);
 
     s->connection_co = qemu_coroutine_create(nbd_connection_entry, s);
     bdrv_inc_in_flight(bs);
-- 
2.29.2