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authorAlexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com>2006-09-26 04:18:16 -0400
committerLen Brown <len.brown@intel.com>2006-10-14 01:50:09 -0400
commitfcfc638c6b1345b6646523dbab0065b36a868ffc (patch)
tree3355d5feeb47df2d7f3fef5a145b17b5f7a91055 /drivers/acpi
parentb4bd8c66435a8cdf8c90334fb3b517a23ff2ab95 (diff)
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>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/events/evmisc.c14
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 6eef4efddcf6..ee2a10bf9077 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -342,20 +342,8 @@ static u32 acpi_ev_global_lock_handler(void *context)
342 if (acquired) { 342 if (acquired) {
343 343
344 /* Got the lock, now wake all threads waiting for it */ 344 /* Got the lock, now wake all threads waiting for it */
345
346 acpi_gbl_global_lock_acquired = TRUE; 345 acpi_gbl_global_lock_acquired = TRUE;
347 346 acpi_ev_global_lock_thread(context);
348 /* Run the Global Lock thread which will signal all waiting threads */
349
350 status =
351 acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER,
352 acpi_ev_global_lock_thread, context);
353 if (ACPI_FAILURE(status)) {
354 ACPI_EXCEPTION((AE_INFO, status,
355 "Could not queue Global Lock thread"));
356
357 return (ACPI_INTERRUPT_NOT_HANDLED);
358 }
359 } 347 }
360 348
361 return (ACPI_INTERRUPT_HANDLED); 349 return (ACPI_INTERRUPT_HANDLED);