qemu: command: Add helper to check if disk throttling is enabled

Add a helper which will use a collection of other helpers to determine
whether a disk requires throttling to be enabled.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/qemu/qemu_command.c

@@ -1031,6 +1031,16 @@ qemuDiskConfigBlkdeviotuneHasMaxLength(virDomainDiskDefPtr disk)
 }
 
 
+bool
+qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk)
+{
+    return !!disk->blkdeviotune.group_name ||
+           qemuDiskConfigBlkdeviotuneHasBasic(disk) ||
+           qemuDiskConfigBlkdeviotuneHasMax(disk) ||
+           qemuDiskConfigBlkdeviotuneHasMaxLength(disk);
+}
+
+
 /**
  * qemuCheckDiskConfigBlkdeviotune:
  * @disk: disk configuration

src/qemu/qemu_command.h

@@ -180,6 +180,9 @@ int qemuGetDriveSourceString(virStorageSourcePtr src,
                              qemuDomainSecretInfoPtr secinfo,
                              char **source);
 
+bool
+qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk);
+
 int qemuCheckDiskConfig(virDomainDiskDefPtr disk,
                         virQEMUCapsPtr qemuCaps);