s390/mm: convert pte_val()/pXd_val() into functions

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Disallow constructs like this:

        pte_val(*pte) = __pa(addr) | prot;

which would directly write into a page table. Users are supposed to
use the set_pte()/set_pXd() primitives, which guarantee block
concurrent (aka atomic) writes.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@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 2022-02-21 21:25:19 +01:00 • committed by Vasily Gorbik

parent e1fc74ff23

commit 966ffbd861

1 changed files with 25 additions and 5 deletions

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arch/s390/include/asm/page.h

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