From e2b8ddcc6b3fbb860e15c5d52455735e128326aa Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Mon, 24 Mar 2014 14:48:45 +0800 Subject: ACPICA: Remove global option to serialize all control methods. According to the reports, the "acpi_serialize" mechanism is broken as: A. The parallel method calls can still happen when the interpreter lock is released under the following conditions: 1. External callbacks are invoked, for example, by the region handlers, the exception handlers, etc.; 2. Module level execution is performed when Load/LoadTable opcodes are executed, and 3. The _REG control methods are invoked to complete the region registrations. B. For the following situations, the interpreter lock need to be released even for a serialized method while currently, the lock-releasing operation is marked as a no-op by acpi_ex_relinquish/reacquire_interpreter() when this mechanism is enabled: 1. Wait opcode is executed, 2. Acquire opcode is executed, and 3. Sleep opcode is executed. This patch removes this mechanism and the internal acpi_ex_relinquish/reacquire_interpreter() APIs. Lv Zheng. References: https://bugzilla.kernel.org/show_bug.cgi?id=52191 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- include/acpi/acpixf.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/acpi') diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index e04f0114283f..a3a8dae1cd61 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -71,7 +71,6 @@ extern u32 acpi_dbg_layer; /* ACPICA runtime options */ -extern u8 acpi_gbl_all_methods_serialized; extern u8 acpi_gbl_copy_dsdt_locally; extern u8 acpi_gbl_create_osi_method; extern u8 acpi_gbl_disable_auto_repair; -- cgit v1.2.3