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authorSebastian Ott <sebott@linux.vnet.ibm.com>2009-03-31 19:16:04 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-03-31 19:17:05 +0200
commitc4621a62649a56f155a96dfc5de479be226f0768 (patch)
tree76812f021dc4eec912f67a4662abed6ec8e8f626 /drivers/s390
parent156013ffd1225ef862853a4340b46f76845f8db1 (diff)
[S390] cio: introduce ccw_device_schedule_sch_unregister
Introduce ccw_device_schedule_sch_unregister as a wrapper for queuing ccw_device_call_sch_unregister on the slow_path_wq. This wrapper will be used in the next patch. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/cio/device.c21
-rw-r--r--drivers/s390/cio/device.h1
2 files changed, 12 insertions, 10 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 9f016fef610..cdbf664ed44 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -310,8 +310,6 @@ static void ccw_device_remove_orphan_cb(struct work_struct *work)
put_device(&cdev->dev);
}
-static void ccw_device_call_sch_unregister(struct work_struct *work);
-
static void
ccw_device_remove_disconnected(struct ccw_device *cdev)
{
@@ -335,11 +333,10 @@ ccw_device_remove_disconnected(struct ccw_device *cdev)
spin_unlock_irqrestore(cdev->ccwlock, flags);
PREPARE_WORK(&cdev->private->kick_work,
ccw_device_remove_orphan_cb);
+ queue_work(slow_path_wq, &cdev->private->kick_work);
} else
/* Deregister subchannel, which will kill the ccw device. */
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(slow_path_wq, &cdev->private->kick_work);
+ ccw_device_schedule_sch_unregister(cdev);
}
/**
@@ -1020,6 +1017,13 @@ static void ccw_device_call_sch_unregister(struct work_struct *work)
put_device(&sch->dev);
}
+void ccw_device_schedule_sch_unregister(struct ccw_device *cdev)
+{
+ PREPARE_WORK(&cdev->private->kick_work,
+ ccw_device_call_sch_unregister);
+ queue_work(slow_path_wq, &cdev->private->kick_work);
+}
+
/*
* subchannel recognition done. Called from the state machine.
*/
@@ -1036,9 +1040,7 @@ io_subchannel_recog_done(struct ccw_device *cdev)
/* Remove device found not operational. */
if (!get_device(&cdev->dev))
break;
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(slow_path_wq, &cdev->private->kick_work);
+ ccw_device_schedule_sch_unregister(cdev);
if (atomic_dec_and_test(&ccw_device_init_count))
wake_up(&ccw_device_init_wq);
break;
@@ -1557,8 +1559,7 @@ static int purge_fn(struct device *dev, void *data)
goto out;
CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", priv->dev_id.ssid,
priv->dev_id.devno);
- PREPARE_WORK(&cdev->private->kick_work, ccw_device_call_sch_unregister);
- queue_work(slow_path_wq, &cdev->private->kick_work);
+ ccw_device_schedule_sch_unregister(cdev);
out:
/* Abort loop in case of pending signal. */
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 85e01846ca6..f1cbbd94ad4 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -87,6 +87,7 @@ int ccw_device_is_orphan(struct ccw_device *);
int ccw_device_recognition(struct ccw_device *);
int ccw_device_online(struct ccw_device *);
int ccw_device_offline(struct ccw_device *);
+void ccw_device_schedule_sch_unregister(struct ccw_device *);
int ccw_purge_blacklisted(void);
/* Function prototypes for device status and basic sense stuff. */