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| author | Bob Moore <robert.moore@intel.com> | 2009-03-09 16:31:04 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-03-27 12:11:02 -0400 |
| commit | 8a335a2331c72e60c6b3ef09b2dedd3ba00da1b1 (patch) | |
| tree | f538a4f68499dab0d59e253bc55a5cf4aff66ec1 /drivers/acpi/acpica/actables.h | |
| parent | aab61b676a024d3527f6201e2b31285a96f7a1d2 (diff) | |
| download | blackbird-op-linux-8a335a2331c72e60c6b3ef09b2dedd3ba00da1b1.tar.gz blackbird-op-linux-8a335a2331c72e60c6b3ef09b2dedd3ba00da1b1.zip | |
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 <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/actables.h')
| -rw-r--r-- | drivers/acpi/acpica/actables.h | 2 |
1 files changed, 1 insertions, 1 deletions
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); |
