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ACPI: Remove deferred execution from global lock acquire wakeup path 

On acquiring the ACPI global lock, if there were sleepers on the lock,
we used to use acpi_os_execute() to defer a thread which would signal
sleepers.  Now just signal the semaphore directly.

http://bugzilla.kernel.org/show_bug.cgi?id=5534#c159

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Y. Starikovskiy 2006-09-26 04:18:16 -04:00 committed by Len Brown
parent b4bd8c6643
commit fcfc638c6b
1 changed files with 1 additions and 13 deletions
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14
drivers/acpi/events/evmisc.c
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@ -342,20 +342,8 @@ static u32 acpi_ev_global_lock_handler(void *context)
if (acquired) {
/* Got the lock, now wake all threads waiting for it */
acpi_gbl_global_lock_acquired = TRUE;
/* Run the Global Lock thread which will signal all waiting threads */
status =
acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER,
acpi_ev_global_lock_thread, context);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Could not queue Global Lock thread"));
return (ACPI_INTERRUPT_NOT_HANDLED);
}
acpi_ev_global_lock_thread(context);
}
return (ACPI_INTERRUPT_HANDLED);