s390/vdso: put vdso datapage in a separate vma

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Add a separate "[vvar]" mapping for the vdso datapage, since it
doesn't need to be executable or COW-able.

This is actually the s390 implementation of commit 8715493852
("arm64: vdso: put vdso datapage in a separate vma")

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 2021-01-24 22:01:16 +01:00 • committed by Vasily Gorbik

parent dfc11c9876

commit 5056c2c53a

1 changed files with 35 additions and 20 deletions

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arch/s390/kernel/vdso.c

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