Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-11 23:50:25 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

x86/mm: implement arch_faults_on_old_pte() stub on x86

Browse Source 
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>
This commit is contained in:
Jia He 2019-10-11 22:09:38 +08:00 committed by Catalin Marinas
parent 6af31226d0
commit f2c4e5970c
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/include/asm/pgtable.h
View File

@ -1463,6 +1463,12 @@ static inline bool arch_has_pfn_modify_check(void)
return boot_cpu_has_bug(X86_BUG_L1TF);
}
#define arch_faults_on_old_pte arch_faults_on_old_pte
static inline bool arch_faults_on_old_pte(void)
{
return false;
}
#include <asm-generic/pgtable.h>
#endif /* __ASSEMBLY__ */