target-arm: Set CPU has_el3 prop during virt init

[qemu.git] / blockdev-nbd.c

diff --git a/blockdev-nbd.c b/blockdev-nbd.c
index 95f10c81e3faae3cf16c4f405e44e763e2e4df52..22e95d17ee809f167df4a267acab6883b397b163 100644 (file)
--- a/blockdev-nbd.c
+++ b/blockdev-nbd.c
@@ -10,6 +10,7 @@
  */
 
 #include "sysemu/blockdev.h"
+#include "sysemu/block-backend.h"
 #include "hw/block/block.h"
 #include "monitor/monitor.h"
 #include "qapi/qmp/qerror.h"
@@ -27,8 +28,9 @@ static void nbd_accept(void *opaque)
     socklen_t addr_len = sizeof(addr);
 
     int fd = accept(server_fd, (struct sockaddr *)&addr, &addr_len);
-    if (fd >= 0) {
-        nbd_client_new(NULL, fd, nbd_client_put);
+    if (fd >= 0 && !nbd_client_new(NULL, fd, nbd_client_put)) {
+        shutdown(fd, 2);
+        close(fd);
     }
 }
 
@@ -69,16 +71,10 @@ static void nbd_close_notifier(Notifier *n, void *data)
     g_free(cn);
 }
 
-static void nbd_server_put_ref(NBDExport *exp)
-{
-    BlockDriverState *bs = nbd_export_get_blockdev(exp);
-    drive_put_ref(drive_get_by_blockdev(bs));
-}
-
 void qmp_nbd_server_add(const char *device, bool has_writable, bool writable,
                         Error **errp)
 {
-    BlockDriverState *bs;
+    BlockBackend *blk;
     NBDExport *exp;
     NBDCloseNotifier *n;
 
@@ -92,29 +88,31 @@ void qmp_nbd_server_add(const char *device, bool has_writable, bool writable,
         return;
     }
 
-    bs = bdrv_find(device);
-    if (!bs) {
+    blk = blk_by_name(device);
+    if (!blk) {
         error_set(errp, QERR_DEVICE_NOT_FOUND, device);
         return;
     }
+    if (!blk_is_inserted(blk)) {
+        error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
+        return;
+    }
 
     if (!has_writable) {
         writable = false;
     }
-    if (bdrv_is_read_only(bs)) {
+    if (blk_is_read_only(blk)) {
         writable = false;
     }
 
-    exp = nbd_export_new(bs, 0, -1, writable ? 0 : NBD_FLAG_READ_ONLY,
-                         nbd_server_put_ref);
+    exp = nbd_export_new(blk, 0, -1, writable ? 0 : NBD_FLAG_READ_ONLY, NULL);
 
     nbd_export_set_name(exp, device);
-    drive_get_ref(drive_get_by_blockdev(bs));
 
-    n = g_malloc0(sizeof(NBDCloseNotifier));
+    n = g_new0(NBDCloseNotifier, 1);
     n->n.notify = nbd_close_notifier;
     n->exp = exp;
-    bdrv_add_close_notifier(bs, &n->n);
+    blk_add_close_notifier(blk, &n->n);
     QTAILQ_INSERT_TAIL(&close_notifiers, n, next);
 }