workqueue: kill run_scheduled_work()

Because it has no callers.

Actually, I think the whole idea of run_scheduled_work() was not right, not
good to mix "unqueue this work and execute its ->func()" in one function.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 0 insertions, 74 deletions

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 26a70992dec8..2a58f16e1961 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -182,7 +182,6 @@ extern void flush_work(struct workqueue_struct *wq, struct work_struct *work);
 extern void flush_work_keventd(struct work_struct *work);
 
 extern int FASTCALL(schedule_work(struct work_struct *work));
-extern int FASTCALL(run_scheduled_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);
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index a981add58fb9..ea422254f8bf 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -98,79 +98,6 @@ static inline void *get_wq_data(struct work_struct *work)
         return (void *) (atomic_long_read(&work->data) & WORK_STRUCT_WQ_DATA_MASK);
 }
 
-static int __run_work(struct cpu_workqueue_struct *cwq, struct work_struct *work)
-{
-        int ret = 0;
-        unsigned long flags;
-
-        spin_lock_irqsave(&cwq->lock, flags);
-        /*
-         * We need to re-validate the work info after we've gotten
-         * the cpu_workqueue lock. We can run the work now iff:
-         *
-         *  - the wq_data still matches the cpu_workqueue_struct
-         *  - AND the work is still marked pending
-         *  - AND the work is still on a list (which will be this
-         *    workqueue_struct list)
-         *
-         * All these conditions are important, because we
-         * need to protect against the work being run right
-         * now on another CPU (all but the last one might be
-         * true if it's currently running and has not been
-         * released yet, for example).
-         */
-        if (get_wq_data(work) == cwq
-            && work_pending(work)
-            && !list_empty(&work->entry)) {
-                work_func_t f = work->func;
-                cwq->current_work = work;
-                list_del_init(&work->entry);
-                spin_unlock_irqrestore(&cwq->lock, flags);
-
-                if (!test_bit(WORK_STRUCT_NOAUTOREL, work_data_bits(work)))
-                        work_release(work);
-                f(work);
-
-                spin_lock_irqsave(&cwq->lock, flags);
-                cwq->current_work = NULL;
-                ret = 1;
-        }
-        spin_unlock_irqrestore(&cwq->lock, flags);
-        return ret;
-}
-
-/**
- * run_scheduled_work - run scheduled work synchronously
- * @work: work to run
- *
- * This checks if the work was pending, and runs it
- * synchronously if so. It returns a boolean to indicate
- * whether it had any scheduled work to run or not.
- *
- * NOTE! This _only_ works for normal work_structs. You
- * CANNOT use this for delayed work, because the wq data
- * for delayed work will not point properly to the per-
- * CPU workqueue struct, but will change!
- */
-int fastcall run_scheduled_work(struct work_struct *work)
-{
-        for (;;) {
-                struct cpu_workqueue_struct *cwq;
-
-                if (!work_pending(work))
-                        return 0;
-                if (list_empty(&work->entry))
-                        return 0;
-                /* NOTE! This depends intimately on __queue_work! */
-                cwq = get_wq_data(work);
-                if (!cwq)
-                        return 0;
-                if (__run_work(cwq, work))
-                        return 1;
-        }
-}
-EXPORT_SYMBOL(run_scheduled_work);
-
 static void insert_work(struct cpu_workqueue_struct *cwq,
                                 struct work_struct *work, int tail)
 {