KVM: s390: Remove user triggerable WARN_ON

pin_map_page() fails legitimately whenever the userspace mapping behind
the adapter route has gone away, e.g. when the VMM unmaps that memory.
As this can happen without a kernel programming error, remove the
WARN_ON.

Fixes: 1e95e3bc6b ("KVM: s390: Enable adapter_indicators_set to use mapped pages")
Cc: Douglas Freimuth <freimuth@linux.ibm.com>
Cc: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Douglas Freimuth <freimuth@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260805110455.7200-2-borntraeger@linux.ibm.com>
This commit is contained in:
Christian Borntraeger 2026-08-05 13:04:48 +02:00 • committed by Claudio Imbrenda
commit b98014e98e