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authorAlexey Starikovskiy <astarikovskiy@suse.de>2010-05-26 11:53:07 +0800
committerLen Brown <len.brown@intel.com>2010-07-06 22:33:56 -0400
commitc45b5c097001480e66d4c523eb715ad317a4ef77 (patch)
tree5b9415840b97a724537273db99b2c66975c63347 /drivers/acpi/acpica/exdump.c
parent5821f75421aa7c7bafdec291223153597f649934 (diff)
ACPICA: Performance enhancement for namespace search and access
This change enhances the performance of namespace searches and walks by adding a backpointer to the parent in each namespace node. On large namespaces, this change can improve overall ACPI performance by up to 9X. Adding a pointer to each namespace node increases the overall size of the internal namespace by about 5%, since each namespace entry usually consists of both a namespace node and an ACPI operand object. 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>
Diffstat (limited to 'drivers/acpi/acpica/exdump.c')
-rw-r--r--drivers/acpi/acpica/exdump.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index cdb66d1e3fd..f067bbb0d96 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -812,7 +812,7 @@ void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags)
acpi_ex_out_string("Type", acpi_ut_get_type_name(node->type));
acpi_ex_out_pointer("Attached Object",
acpi_ns_get_attached_object(node));
- acpi_ex_out_pointer("Parent", acpi_ns_get_parent_node(node));
+ acpi_ex_out_pointer("Parent", node->parent);
acpi_ex_dump_object(ACPI_CAST_PTR(union acpi_operand_object, node),
acpi_ex_dump_node);