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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 <lv.zheng@intel.com> Signed-off-by:
Bob Moore <robert.moore@intel.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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- Documentation/kernel-parameters.txt 0 additions, 2 deletionsDocumentation/kernel-parameters.txt
- drivers/acpi/acpica/acglobal.h 0 additions, 8 deletionsdrivers/acpi/acpica/acglobal.h
- drivers/acpi/acpica/acinterp.h 0 additions, 4 deletionsdrivers/acpi/acpica/acinterp.h
- drivers/acpi/acpica/exsystem.c 6 additions, 6 deletionsdrivers/acpi/acpica/exsystem.c
- drivers/acpi/acpica/exutils.c 10 additions, 70 deletionsdrivers/acpi/acpica/exutils.c
- drivers/acpi/osl.c 0 additions, 12 deletionsdrivers/acpi/osl.c
- include/acpi/acpixf.h 0 additions, 1 deletioninclude/acpi/acpixf.h
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