From 28e53bddf814485699a4142bc056fd37d4e11dd4 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 9 May 2007 02:34:22 -0700 Subject: unify flush_work/flush_work_keventd and rename it to cancel_work_sync flush_work(wq, work) doesn't need the first parameter, we can use cwq->wq (this was possible from the very beginnig, I missed this). So we can unify flush_work_keventd and flush_work. Also, rename flush_work() to cancel_work_sync() and fix all callers. Perhaps this is not the best name, but "flush_work" is really bad. (akpm: this is why the earlier patches bypassed maintainers) Signed-off-by: Oleg Nesterov Cc: Jeff Garzik Cc: "David S. Miller" Cc: Jens Axboe Cc: Tejun Heo Cc: Auke Kok , Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/workqueue.c | 36 +++++++++++++++++------------------- 1 file changed, 17 insertions(+), 19 deletions(-) (limited to 'kernel') diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 63885abf1ba..c9ab4293904 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -413,23 +413,23 @@ static void wait_on_work(struct cpu_workqueue_struct *cwq, } /** - * flush_work - block until a work_struct's callback has terminated - * @wq: the workqueue on which the work is queued + * cancel_work_sync - block until a work_struct's callback has terminated * @work: the work which is to be flushed * - * flush_work() will attempt to cancel the work if it is queued. If the work's - * callback appears to be running, flush_work() will block until it has - * completed. + * cancel_work_sync() will attempt to cancel the work if it is queued. If the + * work's callback appears to be running, cancel_work_sync() will block until + * it has completed. * - * flush_work() is designed to be used when the caller is tearing down data - * structures which the callback function operates upon. It is expected that, - * prior to calling flush_work(), the caller has arranged for the work to not - * be requeued. + * cancel_work_sync() is designed to be used when the caller is tearing down + * data structures which the callback function operates upon. It is expected + * that, prior to calling cancel_work_sync(), the caller has arranged for the + * work to not be requeued. */ -void flush_work(struct workqueue_struct *wq, struct work_struct *work) +void cancel_work_sync(struct work_struct *work) { - const cpumask_t *cpu_map = wq_cpu_map(wq); struct cpu_workqueue_struct *cwq; + struct workqueue_struct *wq; + const cpumask_t *cpu_map; int cpu; might_sleep(); @@ -448,10 +448,13 @@ void flush_work(struct workqueue_struct *wq, struct work_struct *work) work_clear_pending(work); spin_unlock_irq(&cwq->lock); + wq = cwq->wq; + cpu_map = wq_cpu_map(wq); + for_each_cpu_mask(cpu, *cpu_map) wait_on_work(per_cpu_ptr(wq->cpu_wq, cpu), work); } -EXPORT_SYMBOL_GPL(flush_work); +EXPORT_SYMBOL_GPL(cancel_work_sync); static struct workqueue_struct *keventd_wq; @@ -540,18 +543,13 @@ void flush_scheduled_work(void) } EXPORT_SYMBOL(flush_scheduled_work); -void flush_work_keventd(struct work_struct *work) -{ - flush_work(keventd_wq, work); -} -EXPORT_SYMBOL(flush_work_keventd); - /** * cancel_rearming_delayed_work - kill off a delayed work whose handler rearms the delayed work. * @dwork: the delayed work struct * * Note that the work callback function may still be running on return from - * cancel_delayed_work(). Run flush_workqueue() or flush_work() to wait on it. + * cancel_delayed_work(). Run flush_workqueue() or cancel_work_sync() to wait + * on it. */ void cancel_rearming_delayed_work(struct delayed_work *dwork) { -- cgit v1.2.3