luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[S390] cio: allow setting not-operational devices offline

Browse Source 
Accept a request for setting a not-operational device offline.
This way, users can remove devices from Linux which would otherwise
remain unusable until reboot.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Peter Oberparleiter 2009-12-07 12:51:28 +01:00 committed by Martin Schwidefsky
parent 9679baaf85
commit 350e91207b
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/s390/cio/device.c
View File

@ -529,11 +529,10 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
int force, ret; int force, ret;
unsigned long i; unsigned long i;
if ((cdev->private->state != DEV_STATE_OFFLINE && if (!dev_fsm_final_state(cdev) &&
cdev->private->state != DEV_STATE_ONLINE && cdev->private->state != DEV_STATE_DISCONNECTED)
cdev->private->state != DEV_STATE_BOXED && return -EAGAIN;
cdev->private->state != DEV_STATE_DISCONNECTED) || if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
return -EAGAIN; return -EAGAIN;
if (cdev->drv && !try_module_get(cdev->drv->owner)) { if (cdev->drv && !try_module_get(cdev->drv->owner)) {