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s390/cio: Purge based on the cdev's online status

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Ensure that all devices currently offline are purged correctly.

Previously, purging logic relied on the internal FSM state to
determine whether a device was offline. However, devices with a
target state of offline could be skipped if CIO internal
processing was still ongoing during the purge operation.

Update the purge decision logic to rely on the online variable
in the cdev structure instead of the internal FSM state,
providing a more reliable indication of actual device
availability.

Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Vineeth Vijayan 2026-04-28 10:43:41 +02:00 committed by Alexander Gordeev
parent a59b9cb859
commit 58d50cad63
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/cio/device.c
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@ -1328,7 +1328,7 @@ static int purge_fn(struct subchannel *sch, void *data)
cdev = sch_get_cdev(sch);
if (cdev) {
if (cdev->private->state != DEV_STATE_OFFLINE)
if (cdev->online)
goto unlock;
if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)