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Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/osl.c45
1 files changed, 35 insertions, 10 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index c2bed56915e..b998340e23d 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -71,6 +71,7 @@ static unsigned int acpi_irq_irq;
static acpi_osd_handler acpi_irq_handler;
static void *acpi_irq_context;
static struct workqueue_struct *kacpid_wq;
+static struct workqueue_struct *kacpi_notify_wq;
static void __init acpi_request_region (struct acpi_generic_address *addr,
unsigned int length, char *desc)
@@ -137,8 +138,9 @@ acpi_status acpi_os_initialize1(void)
return AE_NULL_ENTRY;
}
kacpid_wq = create_singlethread_workqueue("kacpid");
+ kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify");
BUG_ON(!kacpid_wq);
-
+ BUG_ON(!kacpi_notify_wq);
return AE_OK;
}
@@ -150,6 +152,7 @@ acpi_status acpi_os_terminate(void)
}
destroy_workqueue(kacpid_wq);
+ destroy_workqueue(kacpi_notify_wq);
return AE_OK;
}
@@ -603,6 +606,23 @@ void acpi_os_derive_pci_id(acpi_handle rhandle, /* upper bound */
static void acpi_os_execute_deferred(struct work_struct *work)
{
struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
+ if (!dpc) {
+ printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
+ return;
+ }
+
+ dpc->function(dpc->context);
+ kfree(dpc);
+
+ /* Yield cpu to notify thread */
+ cond_resched();
+
+ return;
+}
+
+static void acpi_os_execute_notify(struct work_struct *work)
+{
+ struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
if (!dpc) {
printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
@@ -637,14 +657,12 @@ acpi_status acpi_os_execute(acpi_execute_type type,
acpi_status status = AE_OK;
struct acpi_os_dpc *dpc;
- ACPI_FUNCTION_TRACE("os_queue_for_execution");
-
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"Scheduling function [%p(%p)] for deferred execution.\n",
function, context));
if (!function)
- return_ACPI_STATUS(AE_BAD_PARAMETER);
+ return AE_BAD_PARAMETER;
/*
* Allocate/initialize DPC structure. Note that this memory will be
@@ -662,14 +680,21 @@ acpi_status acpi_os_execute(acpi_execute_type type,
dpc->function = function;
dpc->context = context;
- INIT_WORK(&dpc->work, acpi_os_execute_deferred);
- if (!queue_work(kacpid_wq, &dpc->work)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ if (type == OSL_NOTIFY_HANDLER) {
+ INIT_WORK(&dpc->work, acpi_os_execute_notify);
+ if (!queue_work(kacpi_notify_wq, &dpc->work)) {
+ status = AE_ERROR;
+ kfree(dpc);
+ }
+ } else {
+ INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+ if (!queue_work(kacpid_wq, &dpc->work)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Call to queue_work() failed.\n"));
- kfree(dpc);
- status = AE_ERROR;
+ status = AE_ERROR;
+ kfree(dpc);
+ }
}
-
return_ACPI_STATUS(status);
}