Stefan Haberland 756a70b6dc s390/dasd: fix inability to use DASD with DIAG driver ... commit 9f4aa52387 upstream. During initialization of the DASD DIAG driver a request is issued that has a bio structure that resides on the stack. With virtually mapped kernel stacks this bio address might be in virtual storage which is unsuitable for usage with the diag250 call. In this case the device can not be set online using the DIAG discipline and fails with -EOPNOTSUP. In the system journal the following error message is presented: dasd: X.X.XXXX Setting the DASD online with discipline DIAG failed with rc=-95 Fix by allocating the bio structure instead of having it on the stack. Fixes: ce3dc44749 ("s390: add support for virtually mapped kernel stacks") Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Cc: stable@vger.kernel.org #4.20 Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-08-19 08:16:29 +02:00
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block	s390/dasd: fix inability to use DASD with DIAG driver	2020-08-19 08:16:29 +02:00
char	s390 updates for the 5.4 merge window	2019-09-17 14:04:43 -07:00
cio	s390/qdio: put thinint indicator after early error	2020-06-24 17:50:22 +02:00
crypto	s390/zcrypt: fix card and queue total counter wrap	2020-03-05 16:43:36 +01:00
net	s390/qeth: don't process empty bridge port events	2020-08-19 08:16:18 +02:00
scsi	scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action	2020-06-30 15:36:51 -04:00
virtio	virtio/s390: fix race on airq_areas[]	2019-07-26 13:36:18 +02:00
Makefile	s390: remove pointless drivers-y in drivers/s390/Makefile	2019-09-16 13:21:51 +02:00