s390/mm,fault: use get_kernel_nofault() to dereference in dump_pagetable()

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The page table dumper uses get_kernel_nofault() to test if dereferencing
page table entries is possible. Use the result, which is the required page
table entry, instead of throwing it away and dereferencing a second time
without any safe guard.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Heiko Carstens 2023-10-12 09:40:44 +02:00 • committed by Vasily Gorbik

parent 5be05c35e7

commit f67c2da9f1

1 changed files with 19 additions and 26 deletions

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arch/s390/mm/fault.c

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