[PATCH] re-export cancel_rearming_delayed_workqueue

This was unexported by Arjan because we have no current users.

However, during a conversion from tasklets to workqueues of the parisc led
functions, we ran across a case where this was needed.  In particular, the
open coded equivalent of cancel_rearming_delayed_workqueue was implemented
incorrectly, which is, I think, all the evidence necessary that this is a
useful API.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index ff46f537ba9b..ac39d04d027c 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -71,6 +71,8 @@ extern int keventd_up(void);
 
 extern void init_workqueues(void);
 void cancel_rearming_delayed_work(struct work_struct *work);
+void cancel_rearming_delayed_workqueue(struct workqueue_struct *,
+                                       struct work_struct *);
 
 /*
  * Kill off a pending schedule_delayed_work().  Note that the work callback
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 52ef419d2747..259cf55da3c9 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -429,12 +429,13 @@ void flush_scheduled_work(void)
  * @wq:   the controlling workqueue structure
  * @work: the delayed work struct
  */
-static void cancel_rearming_delayed_workqueue(struct workqueue_struct *wq,
-                                        struct work_struct *work)
+void cancel_rearming_delayed_workqueue(struct workqueue_struct *wq,
+                                       struct work_struct *work)
 {
         while (!cancel_delayed_work(work))
                 flush_workqueue(wq);
 }
+EXPORT_SYMBOL(cancel_rearming_delayed_workqueue);
 
 /**
  * cancel_rearming_delayed_work - reliably kill off a delayed keventd