diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index 15e1702..ceab67c 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -439,6 +439,8 @@ acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
  *
  ******************************************************************************/
 
+#include <linux/sched.h>
+
 acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
 {
 	acpi_status status;
@@ -688,5 +690,6 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
 	acpi_ut_delete_generic_state(ACPI_CAST_PTR
 				     (union acpi_generic_state, thread));
 	acpi_gbl_current_walk_list = prev_walk_list;
+	cond_resched();
 	return_ACPI_STATUS(status);
 }