s390/vdso: move vdso mapping to its own function

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This is a preparation patch for adding vdso randomization to s390.
It adds a function vdso_size(), which will be used later in calculating
the STACK_TOP value. It also moves the vdso mapping into a new function
vdso_map(), to keep the code similar to other architectures.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Sven Schnelle 2022-04-06 08:35:26 +02:00 • committed by Heiko Carstens

parent f2f47d0ef7

commit 57761da4dc

2 changed files with 20 additions and 5 deletions

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1

arch/s390/include/asm/processor.h

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24

arch/s390/kernel/vdso.c

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