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Commit c5d4a999 authored by Cornelia Huck's avatar Cornelia Huck Committed by Martin Schwidefsky
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[S390] cio: Register/unregister subchannels only from kslowcrw. 



Make sure all subchannel handling is done on the slow path workqueue
so that we don't have races between an old subchannel unregistering
and a new subchannel with the same name registering.

Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 06770a6e

drivers/s390/cio/css.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -483,7 +483,7 @@ static DECLARE_WORK(css_reprobe_work, reprobe_all); 
void css_schedule_reprobe(void)

void css_schedule_reprobe(void)

{

{

	need_reprobe = 1;

	need_reprobe = 1;

	queue_work(ccw_device_work, &css_reprobe_work);

	queue_work(slow_path_wq, &css_reprobe_work);

}

}





EXPORT_SYMBOL_GPL(css_schedule_reprobe);

EXPORT_SYMBOL_GPL(css_schedule_reprobe);

drivers/s390/cio/device_fsm.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -1034,7 +1034,7 @@ device_trigger_reprobe(struct subchannel *sch) 
	if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {

	if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {

		PREPARE_WORK(&cdev->private->kick_work,

		PREPARE_WORK(&cdev->private->kick_work,

			     ccw_device_move_to_orphanage);

			     ccw_device_move_to_orphanage);

		queue_work(ccw_device_work, &cdev->private->kick_work);

		queue_work(slow_path_wq, &cdev->private->kick_work);

	} else

	} else

		ccw_device_start_id(cdev, 0);

		ccw_device_start_id(cdev, 0);

}

}