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s390/cio: include subchannels without devices also for evaluation

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Currently when the new channel-path is enabled, we do evaluation only
on the subchannels with a device connected on it. This is because,
in the past, if the device in the subchannel is not working or not
available, we used to unregister the subchannels. But, from the 'commit
2297791c92 ("s390/cio: dont unregister subchannel from child-drivers")'
we allow subchannels with or without an active device connected
on it. So, when we do the io_subchannel_verify, make sure that,
we are evaluating the subchannels without any device too.

Fixes: 2297791c92 ("s390/cio: dont unregister subchannel from child-drivers")
Reported-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
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 2023-05-02 11:12:42 +02:00 committed by Alexander Gordeev
parent 124acbe275
commit b1b0d5aec1
1 changed files with 2 additions and 0 deletions
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2
drivers/s390/cio/device.c
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@ -1111,6 +1111,8 @@ static void io_subchannel_verify(struct subchannel *sch)
cdev = sch_get_cdev(sch);
if (cdev)
dev_fsm_event(cdev, DEV_EVENT_VERIFY);
else
css_schedule_eval(sch->schid);
}
static void io_subchannel_terminate_path(struct subchannel *sch, u8 mask)