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| author | Bob Moore | 2007-02-02 17:48:20 +0100 |
|---|---|---|
| committer | Len Brown | 2007-02-03 03:14:24 +0100 |
| commit | 1ba753acb372c2955a4843302e92e49ce82e2fea (patch) | |
| tree | 13dbe3af585f835c7d9cdf41fae505a7df4e8620 /drivers/acpi/namespace/nseval.c | |
| parent | ACPICA: Create tbfadt.c to hold all FADT-related functions (diff) | |
| download | kernel-qcow2-linux-1ba753acb372c2955a4843302e92e49ce82e2fea.tar.gz kernel-qcow2-linux-1ba753acb372c2955a4843302e92e49ce82e2fea.tar.xz kernel-qcow2-linux-1ba753acb372c2955a4843302e92e49ce82e2fea.zip | |
ACPICA: Re-implement interpreters' "serialized mode"
Enhanced the implementation of the interpreters'
serialized mode (boot with "acpi_serialize" to set
acpi_glb_all_methods_serialized flag.)
When this mode is specified, instead of creating a serialization
semaphore per control method, the interpreter lock is
simply no longer released before a blocking operation
during control method execution. This effectively makes
the AML Interpreter single-threaded. The overhead of a
semaphore per-method is eliminated.
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/namespace/nseval.c')
| -rw-r--r-- | drivers/acpi/namespace/nseval.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c index 4b0a4a8c9843..71566161ac83 100644 --- a/drivers/acpi/namespace/nseval.c +++ b/drivers/acpi/namespace/nseval.c @@ -154,11 +154,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info) * Execute the method via the interpreter. The interpreter is locked * here before calling into the AML parser */ - status = acpi_ex_enter_interpreter(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - + acpi_ex_enter_interpreter(); status = acpi_ps_execute_method(info); acpi_ex_exit_interpreter(); } else { @@ -182,10 +178,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info) * resolution, we must lock it because we could access an opregion. * The opregion access code assumes that the interpreter is locked. */ - status = acpi_ex_enter_interpreter(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + acpi_ex_enter_interpreter(); /* Function has a strange interface */ |