ACPICA: Optimization: Reduce the number of namespace walks
On control method exit, only walk the namespace if the method is
known to have created namespace objects outside of its local scope.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 0084633..64750ee 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -584,8 +584,22 @@
* want make the objects permanent.
*/
if (!(method_desc->method.flags & AOPOBJ_MODULE_LEVEL)) {
- acpi_ns_delete_namespace_by_owner(method_desc->method.
- owner_id);
+
+ /* Delete any direct children of (created by) this method */
+
+ acpi_ns_delete_namespace_subtree(walk_state->
+ method_node);
+
+ /*
+ * Delete any objects that were created by this method
+ * elsewhere in the namespace (if any were created).
+ */
+ if (method_desc->method.
+ flags & AOPOBJ_MODIFIED_NAMESPACE) {
+ acpi_ns_delete_namespace_by_owner(method_desc->
+ method.
+ owner_id);
+ }
}
}