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 <oleg@tv-sign.ru>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Auke Kok <auke-jan.h.kok@intel.com>,
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index b74e56caba6f..fef87dd70d17 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1316,7 +1316,7 @@ void ata_port_flush_task(struct ata_port *ap)
         spin_unlock_irqrestore(ap->lock, flags);
 
         DPRINTK("flush #1\n");
-        flush_work(ata_wq, &ap->port_task.work); /* akpm: seems unneeded */
+        cancel_work_sync(&ap->port_task.work); /* akpm: seems unneeded */
 
         /*
          * At this point, if a task is running, it's guaranteed to see
@@ -1327,7 +1327,7 @@ void ata_port_flush_task(struct ata_port *ap)
                 if (ata_msg_ctl(ap))
                         ata_port_printk(ap, KERN_DEBUG, "%s: flush #2\n",
                                         __FUNCTION__);
-                flush_work(ata_wq, &ap->port_task.work);
+                cancel_work_sync(&ap->port_task.work);
         }
 
         spin_lock_irqsave(ap->lock, flags);
@@ -6475,9 +6475,9 @@ void ata_port_detach(struct ata_port *ap)
         /* Flush hotplug task.  The sequence is similar to
          * ata_port_flush_task().
          */
-        flush_work(ata_aux_wq, &ap->hotplug_task.work); /* akpm: why? */
+        cancel_work_sync(&ap->hotplug_task.work); /* akpm: why? */
         cancel_delayed_work(&ap->hotplug_task);
-        flush_work(ata_aux_wq, &ap->hotplug_task.work);
+        cancel_work_sync(&ap->hotplug_task.work);
 
  skip_eh:
         /* remove the associated SCSI host */