x86/mm: implement arch_faults_on_old_pte() stub on x86
authorJia He <justin.he@arm.com>
Fri, 11 Oct 2019 14:09:38 +0000 (22:09 +0800)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 18 Oct 2019 10:11:25 +0000 (11:11 +0100)
commitf2c4e5970cece75a895fcc45f0cd66b5a5ec0819
treeccc245d681aebdc8b22722c6a26ac967247142e1
parent6af31226d0394691f5562eca0134262bb935fa9c
x86/mm: implement arch_faults_on_old_pte() stub on x86

arch_faults_on_old_pte is a helper to indicate that it might cause page
fault when accessing old pte. But on x86, there is feature to setting
pte access flag by hardware. Hence implement an overriding stub which
always returns false.

Signed-off-by: Jia He <justin.he@arm.com>
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/x86/include/asm/pgtable.h