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| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2009-10-06 10:34:01 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-10-06 10:35:07 +0200 |
| commit | 9a332116948955bd25d122efd91feed103f0e3e4 (patch) | |
| tree | d8da4f355c3a4ab22e734c833b370dc0a6285302 /drivers/s390/cio/device_fsm.c | |
| parent | [S390] Fix memory leak in /proc/cio_ignore (diff) | |
| download | linux-9a332116948955bd25d122efd91feed103f0e3e4.tar.xz linux-9a332116948955bd25d122efd91feed103f0e3e4.zip | |
[S390] cio: make disconnected handling consistent
When there is no path left to a ccw device, inform the associated
device driver and act according to the response: if the driver
wants to keep the device, put it into the disconnected state.
If not, or if there is no driver or if the device is not online,
unregister it.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/device_fsm.c')
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index e728ce447f6e..3db3847ee137 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -387,19 +387,33 @@ ccw_device_done(struct ccw_device *cdev, int state) cdev->private->state = state; - if (state == DEV_STATE_BOXED) { + switch (state) { + case DEV_STATE_BOXED: CIO_MSG_EVENT(0, "Boxed device %04x on subchannel %04x\n", cdev->private->dev_id.devno, sch->schid.sch_no); if (cdev->online && !ccw_device_notify(cdev, CIO_BOXED)) ccw_device_schedule_sch_unregister(cdev); cdev->private->flags.donotify = 0; - } - if (state == DEV_STATE_NOT_OPER) { + break; + case DEV_STATE_NOT_OPER: CIO_MSG_EVENT(0, "Device %04x gone on subchannel %04x\n", cdev->private->dev_id.devno, sch->schid.sch_no); if (!ccw_device_notify(cdev, CIO_GONE)) ccw_device_schedule_sch_unregister(cdev); cdev->private->flags.donotify = 0; + break; + case DEV_STATE_DISCONNECTED: + CIO_MSG_EVENT(0, "Disconnected device %04x on subchannel " + "%04x\n", cdev->private->dev_id.devno, + sch->schid.sch_no); + if (!ccw_device_notify(cdev, CIO_NO_PATH)) + ccw_device_schedule_sch_unregister(cdev); + else + ccw_device_set_disconnected(cdev); + cdev->private->flags.donotify = 0; + break; + default: + break; } if (cdev->private->flags.donotify) { |