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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: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
wifi-calibration
Cornelia Huck 2007-11-20 11:13:41 +01:00 committed by Martin Schwidefsky
parent 06770a6e7d
commit c5d4a9997b
2 changed files with 2 additions and 2 deletions
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2
drivers/s390/cio/css.c
View File

@ -483,7 +483,7 @@ static DECLARE_WORK(css_reprobe_work, reprobe_all);
void css_schedule_reprobe(void)
{
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);

2
drivers/s390/cio/device_fsm.c
View File

@ -1034,7 +1034,7 @@ device_trigger_reprobe(struct subchannel *sch)
if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
PREPARE_WORK(&cdev->private->kick_work,
ccw_device_move_to_orphanage);
queue_work(ccw_device_work, &cdev->private->kick_work);
queue_work(slow_path_wq, &cdev->private->kick_work);
} else
ccw_device_start_id(cdev, 0);
}