s390/kasan: remove identity mapping support

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The identity mapping is created in the decompressor,
there is no need to have the same functionality in
the kasan setup code. Thus, remove it.

Remove the 4KB pages check for first 1MB since there
is no need to take care of the lowcore pages.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

...

This commit is contained in:

Alexander Gordeev 2022-12-16 19:49:23 +01:00 • committed by Heiko Carstens

parent 12cf6473d2

commit 07493a9ca7

1 changed files with 5 additions and 22 deletions

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arch/s390/mm/kasan_init.c

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