workqueue: deprecate flush[_delayed]_work_sync()

flush[_delayed]_work_sync() are now spurious.  Mark them deprecated
and convert all users to flush[_delayed]_work().

If you're cc'd and wondering what's going on: Now all workqueues are
non-reentrant and the regular flushes guarantee that the work item is
not pending or running on any CPU on return, so there's no reason to
use the sync flushes at all and they're going away.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <[email protected]>
Cc: Russell King <[email protected]>
Cc: Paul Mundt <[email protected]>
Cc: Ian Campbell <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Mattia Dongili <[email protected]>
Cc: Kent Yoder <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Karsten Keil <[email protected]>
Cc: Bryan Wu <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Alasdair Kergon <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Florian Tobias Schandinat <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: [email protected]
Cc: Anton Vorontsov <[email protected]>
Cc: Sangbeom Kim <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Eric Van Hensbergen <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Steven Whitehouse <[email protected]>
Cc: Petr Vandrovec <[email protected]>
Cc: Mark Fasheh <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Avi Kivity <[email protected]> 

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 855fcdaa2d72..a351be7c3e91 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -460,13 +460,13 @@ static inline bool __cancel_delayed_work(struct delayed_work *work)
 }
 
 /* used to be different but now identical to flush_work(), deprecated */
-static inline bool flush_work_sync(struct work_struct *work)
+static inline bool __deprecated flush_work_sync(struct work_struct *work)
 {
 	return flush_work(work);
 }
 
 /* used to be different but now identical to flush_delayed_work(), deprecated */
-static inline bool flush_delayed_work_sync(struct delayed_work *dwork)
+static inline bool __deprecated flush_delayed_work_sync(struct delayed_work *dwork)
 {
 	return flush_delayed_work(dwork);
 }