s390/kasan: avoid kasan crash with standby memory defined

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Kasan early memory allocator simply chops off memory blocks from the
end of the physical memory. Reuse mem_detect info to identify actual
online memory end rather than using max_physmem_end. This allows to run
the kernel with kasan enabled and standby memory defined.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Vasily Gorbik 2018-09-13 10:59:25 +02:00 • committed by Martin Schwidefsky

parent 19733fe872

commit 296352397d

1 changed files with 18 additions and 1 deletions

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19

arch/s390/mm/kasan_init.c

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