From 8a335a2331c72e60c6b3ef09b2dedd3ba00da1b1 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 9 Mar 2009 16:31:04 +0800 Subject: ACPICA: Fix AcpiWalkNamespace race condition with table unload Added a reader/writer locking mechanism to allow multiple concurrent namespace walks (readers), but a dynamic table unload will have exclusive access to the namespace. This fixes a problem where a table unload could delete the portion of the namespace that is currently being examined by a walk. Adds a new file, utlock.c that implements the reader/writer lock mechanism. ACPICA BZ 749. http://www.acpica.org/bugzilla/show_bug.cgi?id=749 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/actables.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi/acpica/actables.h') diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index d8f8c5df4fbc..01c76b8ea7ba 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -79,7 +79,7 @@ void acpi_tb_delete_table(struct acpi_table_desc *table_desc); void acpi_tb_terminate(void); -void acpi_tb_delete_namespace_by_owner(u32 table_index); +acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index); acpi_status acpi_tb_allocate_owner_id(u32 table_index); -- cgit v1.2.3-59-g8ed1b