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| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2008-09-09 12:38:59 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-09-09 12:39:07 +0200 |
| commit | b301ea8c81b13123761772f344faf606c76ba174 (patch) | |
| tree | 1fe42d0b308dc613b8b518fed09849a9242e027c | |
| parent | c91ebe496120e05301465fff31094bfecf798e9f (diff) | |
| download | kernel_samsung_crespo-b301ea8c81b13123761772f344faf606c76ba174.zip kernel_samsung_crespo-b301ea8c81b13123761772f344faf606c76ba174.tar.gz kernel_samsung_crespo-b301ea8c81b13123761772f344faf606c76ba174.tar.bz2 | |
[S390] cio: allow offline processing for disconnected devices
When disconnected ccw devices are removed, the device has to be set
offline, otherwise there will be side effects including a reference
count imbalance. This patch modifies ccw_device_offline to work for
devices in disconnecte/not operational state. ccw_device_offline is
called by cio for devices which are online during device removal.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 550508d..84cc9ea 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -658,6 +658,13 @@ ccw_device_offline(struct ccw_device *cdev) { struct subchannel *sch; + /* Allow ccw_device_offline while disconnected. */ + if (cdev->private->state == DEV_STATE_DISCONNECTED || + cdev->private->state == DEV_STATE_NOT_OPER) { + cdev->private->flags.donotify = 0; + ccw_device_done(cdev, DEV_STATE_NOT_OPER); + return 0; + } if (ccw_device_is_orphan(cdev)) { ccw_device_done(cdev, DEV_STATE_OFFLINE); return 0; |