diff options
| author |   Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2009-12-07 12:51:17 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-12-07 12:51:29 +0100 |
| commit | 5d6e6b6f6f3eac10a7f5a15e961bac3b36824d9d (patch) | |
| tree | b64af704c59b0820c0537bd0bed45caa0d5e26b7 /drivers/s390/cio/device_fsm.c | |
| parent | [S390] cio: fix repeat setting of cdev parent association (diff) | |
| download | linux-dev-5d6e6b6f6f3eac10a7f5a15e961bac3b36824d9d.tar.xz linux-dev-5d6e6b6f6f3eac10a7f5a15e961bac3b36824d9d.zip | |
[S390] cio: introduce parent-initiated device move
Change the initiative to update subchannel-ccw device associations
to the subchannel: when there is an indication that the internal
association no longer reflects the current hardware state, mark
each affected subchannel as requiring attention. Once processing
reaches a subchannel, determine the correct association for that
subchannel at that time and perform the necessary device_move
operations.
This change fixes problems with the previous approach which would
leave devices in an inconsistent state when a new hardware change
occurred while a device_move was already scheduled.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index b9613d7df9ef..d1e05f44fb6f 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -1072,11 +1072,9 @@ void ccw_device_trigger_reprobe(struct ccw_device *cdev) /* We should also udate ssd info, but this has to wait. */ /* Check if this is another device which appeared on the same sch. */ - if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) { - PREPARE_WORK(&cdev->private->kick_work, - ccw_device_move_to_orphanage); - queue_work(slow_path_wq, &cdev->private->kick_work); - } else + if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) + css_schedule_eval(sch->schid); + else ccw_device_start_id(cdev, 0); } |