qemu_namespace: Introduce qemuDomainNamespaceSetupPath()

Sometimes it may come handy to just bind mount a directory/file
into domain's namespace. Implement a thin wrapper over
qemuNamespaceMknodPaths() which has all the logic we need.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>

src/qemu/qemu_namespace.c

@@ -1424,6 +1424,25 @@ qemuNamespaceUnlinkPaths(virDomainObj *vm,
 }
 
 
+int
+qemuDomainNamespaceSetupPath(virDomainObj *vm,
+                             const char *path,
+                             bool *created)
+{
+    g_autoptr(virGSListString) paths = NULL;
+
+    if (!qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT))
+        return 0;
+
+    paths = g_slist_prepend(paths, g_strdup(path));
+
+    if (qemuNamespaceMknodPaths(vm, paths, created) < 0)
+        return -1;
+
+    return 0;
+}
+
+
 int
 qemuDomainNamespaceSetupDisk(virDomainObj *vm,
                              virStorageSource *src,

src/qemu/qemu_namespace.h

@@ -48,6 +48,10 @@ void qemuDomainDestroyNamespace(virQEMUDriver *driver,
 
 bool qemuDomainNamespaceAvailable(qemuDomainNamespace ns);
 
+int qemuDomainNamespaceSetupPath(virDomainObj *vm,
+                                 const char *path,
+                                 bool *created);
+
 int qemuDomainNamespaceSetupDisk(virDomainObj *vm,
                                  virStorageSource *src,
                                  bool *created);