s390: don't use flush_scheduled_work()

flush_scheduled_work() is deprecated and scheduled to be removed.

* tape_3590: Create and use tape_3590_wq instead of the system_wq.

* tape_block: Directly flush requeue_task on cleanup instead of using
  flush_scheduled_work().

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: linux-s390@vger.kernel.org

2 files changed, 14 insertions, 6 deletions

diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index deff2c3361e4..fbe361fcd2c0 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -24,6 +24,8 @@
 #include "tape_std.h"
 #include "tape_3590.h"
 
+static struct workqueue_struct *tape_3590_wq;
+
 /*
  * Pointer to debug area.
  */
@@ -613,7 +615,7 @@ tape_3590_schedule_work(struct tape_device *device, enum tape_op op)
         p->device = tape_get_device(device);
         p->op = op;
 
-        schedule_work(&p->work);
+        queue_work(tape_3590_wq, &p->work);
         return 0;
 }
 
@@ -1629,7 +1631,7 @@ fail_kmalloc:
 static void
 tape_3590_cleanup_device(struct tape_device *device)
 {
-        flush_scheduled_work();
+        flush_workqueue(tape_3590_wq);
         tape_std_unassign(device);
 
         kfree(device->discdata);
@@ -1733,11 +1735,17 @@ tape_3590_init(void)
 #endif
 
         DBF_EVENT(3, "3590 init\n");
+
+        tape_3590_wq = alloc_workqueue("tape_3590", 0, 0);
+        if (!tape_3590_wq)
+                return -ENOMEM;
+
         /* Register driver for 3590 tapes. */
         rc = ccw_driver_register(&tape_3590_driver);
-        if (rc)
+        if (rc) {
+                destroy_workqueue(tape_3590_wq);
                 DBF_EVENT(3, "3590 init failed\n");
-        else
+        } else
                 DBF_EVENT(3, "3590 registered\n");
         return rc;
 }
@@ -1746,7 +1754,7 @@ static void
 tape_3590_exit(void)
 {
         ccw_driver_unregister(&tape_3590_driver);
-
+        destroy_workqueue(tape_3590_wq);
         debug_unregister(TAPE_DBF_AREA);
 }
 
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index f0fa9ca5cb2c..55d2d0f4eabc 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -264,7 +264,7 @@ cleanup_queue:
 void
 tapeblock_cleanup_device(struct tape_device *device)
 {
-        flush_scheduled_work();
+        flush_work_sync(&device->blk_data.requeue_task);
         tape_put_device(device);
 
         if (!device->blk_data.disk) {