diff options
Diffstat (limited to 'drivers/acpi/osl.c')
| -rw-r--r-- | drivers/acpi/osl.c | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index c84286cbbe25..02b30ae6a68e 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -50,6 +50,7 @@ ACPI_MODULE_NAME("osl") struct acpi_os_dpc { acpi_osd_exec_callback function; void *context; + struct work_struct work; }; #ifdef CONFIG_ACPI_CUSTOM_DSDT @@ -73,7 +74,6 @@ 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; acpi_status acpi_os_initialize(void) { @@ -92,9 +92,8 @@ 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; } @@ -106,7 +105,6 @@ acpi_status acpi_os_terminate(void) } destroy_workqueue(kacpid_wq); - destroy_workqueue(kacpi_notify_wq); return AE_OK; } @@ -567,9 +565,9 @@ void acpi_os_derive_pci_id(acpi_handle rhandle, /* upper bound */ acpi_os_derive_pci_id_2(rhandle, chandle, id, &is_bridge, &bus_number); } -static void acpi_os_execute_deferred(void *context) +static void acpi_os_execute_deferred(struct work_struct *work) { - struct acpi_os_dpc *dpc = (struct acpi_os_dpc *)context; + struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work); if (!dpc) { printk(KERN_ERR PREFIX "Invalid (NULL) context\n"); return; @@ -602,40 +600,41 @@ acpi_status acpi_os_execute(acpi_execute_type type, { acpi_status status = AE_OK; struct acpi_os_dpc *dpc; - struct work_struct *task; + + 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 AE_BAD_PARAMETER; + return_ACPI_STATUS(AE_BAD_PARAMETER); /* * Allocate/initialize DPC structure. Note that this memory will be - * freed by the callee. The kernel handles the tq_struct list in a + * freed by the callee. The kernel handles the work_struct list in a * way that allows us to also free its memory inside the callee. * Because we may want to schedule several tasks with different * parameters we can't use the approach some kernel code uses of - * having a static tq_struct. - * We can save time and code by allocating the DPC and tq_structs - * from the same memory. + * having a static work_struct. */ - dpc = kmalloc(sizeof(struct acpi_os_dpc) + - sizeof(struct work_struct), GFP_ATOMIC); + dpc = kmalloc(sizeof(struct acpi_os_dpc), GFP_ATOMIC); if (!dpc) - return AE_NO_MEMORY; + return_ACPI_STATUS(AE_NO_MEMORY); + dpc->function = function; dpc->context = context; - task = (void *)(dpc + 1); - INIT_WORK(task, acpi_os_execute_deferred, (void *)dpc); - if (!queue_work((type == OSL_NOTIFY_HANDLER)? - kacpi_notify_wq : kacpid_wq, task)) { - status = AE_ERROR; + + 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; } - return status; + + return_ACPI_STATUS(status); } EXPORT_SYMBOL(acpi_os_execute); |