From 6bb49e5965c1fc399b4d3cd2b5cf2da535b330c0 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 22 Nov 2006 14:54:45 +0000 Subject: [PATCH] WorkStruct: Typedef the work function prototype Define a type for the work function prototype. It's not only kept in the work_struct struct, it's also passed as an argument to several functions. This makes it easier to change it. Signed-Off-By: David Howells --- drivers/block/floppy.c | 4 ++-- include/linux/workqueue.h | 9 +++++---- kernel/workqueue.c | 6 +++--- 3 files changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 9e6d3a87cbe..5a14fac13b1 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -996,7 +996,7 @@ static DECLARE_WORK(floppy_work, NULL, NULL); static void schedule_bh(void (*handler) (void)) { - PREPARE_WORK(&floppy_work, (void (*)(void *))handler, NULL); + PREPARE_WORK(&floppy_work, (work_func_t)handler, NULL); schedule_work(&floppy_work); } @@ -1008,7 +1008,7 @@ static void cancel_activity(void) spin_lock_irqsave(&floppy_lock, flags); do_floppy = NULL; - PREPARE_WORK(&floppy_work, (void *)empty, NULL); + PREPARE_WORK(&floppy_work, (work_func_t)empty, NULL); del_timer(&fd_timer); spin_unlock_irqrestore(&floppy_lock, flags); } diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 9faaccae570..cef40b22ff9 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -11,10 +11,12 @@ struct workqueue_struct; +typedef void (*work_func_t)(void *data); + struct work_struct { unsigned long pending; struct list_head entry; - void (*func)(void *); + work_func_t func; void *data; void *wq_data; }; @@ -91,7 +93,7 @@ extern int FASTCALL(schedule_work(struct work_struct *work)); extern int FASTCALL(schedule_delayed_work(struct delayed_work *work, unsigned long delay)); extern int schedule_delayed_work_on(int cpu, struct delayed_work *work, unsigned long delay); -extern int schedule_on_each_cpu(void (*func)(void *info), void *info); +extern int schedule_on_each_cpu(work_func_t func, void *info); extern void flush_scheduled_work(void); extern int current_is_keventd(void); extern int keventd_up(void); @@ -100,8 +102,7 @@ extern void init_workqueues(void); void cancel_rearming_delayed_work(struct delayed_work *work); void cancel_rearming_delayed_workqueue(struct workqueue_struct *, struct delayed_work *); -int execute_in_process_context(void (*fn)(void *), void *, - struct execute_work *); +int execute_in_process_context(work_func_t fn, void *, struct execute_work *); /* * Kill off a pending schedule_delayed_work(). Note that the work callback diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 44fc54b7dec..1e9d61ecf76 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -217,7 +217,7 @@ static void run_workqueue(struct cpu_workqueue_struct *cwq) while (!list_empty(&cwq->worklist)) { struct work_struct *work = list_entry(cwq->worklist.next, struct work_struct, entry); - void (*f) (void *) = work->func; + work_func_t f = work->func; void *data = work->data; list_del_init(cwq->worklist.next); @@ -513,7 +513,7 @@ EXPORT_SYMBOL(schedule_delayed_work_on); * * schedule_on_each_cpu() is very slow. */ -int schedule_on_each_cpu(void (*func)(void *info), void *info) +int schedule_on_each_cpu(work_func_t func, void *info) { int cpu; struct work_struct *works; @@ -578,7 +578,7 @@ EXPORT_SYMBOL(cancel_rearming_delayed_work); * Returns: 0 - function was executed * 1 - function was scheduled for execution */ -int execute_in_process_context(void (*fn)(void *data), void *data, +int execute_in_process_context(work_func_t fn, void *data, struct execute_work *ew) { if (!in_interrupt()) { -- 2.11.4.GIT