qemu: Split entry points to qemuDomainStorageSourceChainAccessPrepare

Introduce qemuDomainStorageSourceChainAccess(Allow|Revoke) as entry
points to qemuDomainStorageSourceChainAccessPrepare for symmetry with
the functions for single backing chain elements.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/qemu/qemu_domain.c

@@ -9224,7 +9224,7 @@ qemuDomainDiskGetBackendAlias(virDomainDiskDefPtr disk,
  *
  * Returns 0 on success and -1 on error. Reports libvirt error.
  */
-int
+static int
 qemuDomainStorageSourceChainAccessPrepare(virQEMUDriverPtr driver,
                                           virDomainObjPtr vm,
                                           virStorageSourcePtr src,
@@ -9279,6 +9279,24 @@ qemuDomainStorageSourceChainAccessPrepare(virQEMUDriverPtr driver,
 }
 
 
+int
+qemuDomainStorageSourceChainAccessAllow(virQEMUDriverPtr driver,
+                                        virDomainObjPtr vm,
+                                        virStorageSourcePtr src)
+{
+    return qemuDomainStorageSourceChainAccessPrepare(driver, vm, src, false);
+}
+
+
+int
+qemuDomainStorageSourceChainAccessRevoke(virQEMUDriverPtr driver,
+                                         virDomainObjPtr vm,
+                                         virStorageSourcePtr src)
+{
+    return qemuDomainStorageSourceChainAccessPrepare(driver, vm, src, true);
+}
+
+
 /**
  * qemuDomainStorageSourceAccessRevoke:
  *

src/qemu/qemu_domain.h

@@ -770,10 +770,12 @@ int qemuDomainDiskGetBackendAlias(virDomainDiskDefPtr disk,
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
     ATTRIBUTE_NONNULL(3) ATTRIBUTE_RETURN_CHECK;
 
-int qemuDomainStorageSourceChainAccessPrepare(virQEMUDriverPtr driver,
-                                              virDomainObjPtr vm,
-                                              virStorageSourcePtr src,
-                                              bool teardown);
+int qemuDomainStorageSourceChainAccessAllow(virQEMUDriverPtr driver,
+                                            virDomainObjPtr vm,
+                                            virStorageSourcePtr src);
+int qemuDomainStorageSourceChainAccessRevoke(virQEMUDriverPtr driver,
+                                             virDomainObjPtr vm,
+                                             virStorageSourcePtr src);
 
 void qemuDomainStorageSourceAccessRevoke(virQEMUDriverPtr driver,
                                          virDomainObjPtr vm,

src/qemu/qemu_hotplug.c

@@ -809,7 +809,7 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
     if (qemuDomainPrepareDiskSource(disk, priv, cfg) < 0)
         goto cleanup;
 
-    if (qemuDomainStorageSourceChainAccessPrepare(driver, vm, newsrc, false) < 0)
+    if (qemuDomainStorageSourceChainAccessAllow(driver, vm, newsrc) < 0)
         goto cleanup;
 
     if (qemuHotplugAttachManagedPR(driver, vm, newsrc, QEMU_ASYNC_JOB_NONE) < 0)
@@ -828,7 +828,7 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
     /* remove the old source from shared device list */
     disk->src = oldsrc;
     ignore_value(qemuRemoveSharedDisk(driver, disk, vm->def->name));
-    ignore_value(qemuDomainStorageSourceChainAccessPrepare(driver, vm, oldsrc, true));
+    ignore_value(qemuDomainStorageSourceChainAccessRevoke(driver, vm, oldsrc));
 
     /* media was changed, so we can remove the old media definition now */
     virObjectUnref(oldsrc);
@@ -843,7 +843,7 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
         if (sharedAdded)
             ignore_value(qemuRemoveSharedDisk(driver, disk, vm->def->name));
 
-        ignore_value(qemuDomainStorageSourceChainAccessPrepare(driver, vm, newsrc, true));
+        ignore_value(qemuDomainStorageSourceChainAccessRevoke(driver, vm, newsrc));
     }
 
     /* remove PR manager object if unneeded */
@@ -873,7 +873,7 @@ qemuDomainAttachDiskGeneric(virQEMUDriverPtr driver,
     char *devstr = NULL;
     VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
 
-    if (qemuDomainStorageSourceChainAccessPrepare(driver, vm, disk->src, false) < 0)
+    if (qemuDomainStorageSourceChainAccessAllow(driver, vm, disk->src) < 0)
         goto cleanup;
 
     if (qemuAssignDeviceDiskAlias(vm->def, disk, priv->qemuCaps) < 0)
@@ -935,7 +935,7 @@ qemuDomainAttachDiskGeneric(virQEMUDriverPtr driver,
     virDomainAuditDisk(vm, NULL, disk->src, "attach", false);
 
  error:
-    ignore_value(qemuDomainStorageSourceChainAccessPrepare(driver, vm, disk->src, true));
+    ignore_value(qemuDomainStorageSourceChainAccessRevoke(driver, vm, disk->src));
     goto cleanup;
 }
 
@@ -4476,7 +4476,7 @@ qemuDomainRemoveDiskDevice(virQEMUDriverPtr driver,
     qemuDomainReleaseDeviceAddress(vm, &disk->info);
 
     /* tear down disk security access */
-    qemuDomainStorageSourceChainAccessPrepare(driver, vm, disk->src, true);
+    qemuDomainStorageSourceChainAccessRevoke(driver, vm, disk->src);
 
     dev.type = VIR_DOMAIN_DEVICE_DISK;
     dev.data.disk = disk;