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authorBob Moore <robert.moore@intel.com>2014-03-24 14:49:00 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-03-26 16:25:59 +0100
commit22b5afce6a0f29f995b0cce83a5033892dd306d8 (patch)
tree5733ad0071177f398108a8932b7d7108bd74c4ca /include/acpi/acpixf.h
parente2b8ddcc6b3fbb860e15c5d52455735e128326aa (diff)
ACPICA: Add auto-serialization support for ill-behaved control methods.
This change adds support to automatically mark a control method as "serialized" if the method creates any named objects. This will positively prevent the method from being entered by more than one thread and thus preventing a possible abort when an attempt is made to create an object twice. Implemented by parsing all non-serialize control methods at table load time. This feature is disabled by default and this patch also adds a new Linux kernel parameter "acpi_auto_serialize" to allow this feature to be turned on for a specific boot. References: https://bugzilla.kernel.org/show_bug.cgi?id=52191 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/acpixf.h')
-rw-r--r--include/acpi/acpixf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index a3a8dae1cd61..fc017dff1ba0 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -71,6 +71,7 @@ extern u32 acpi_dbg_layer;
/* ACPICA runtime options */
+extern u8 acpi_gbl_auto_serialize_methods;
extern u8 acpi_gbl_copy_dsdt_locally;
extern u8 acpi_gbl_create_osi_method;
extern u8 acpi_gbl_disable_auto_repair;

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