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| author | Ram Pai <linuxram@us.ibm.com> | 2018-01-18 17:50:34 -0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-20 22:59:02 +1100 |
| commit | 87bbabbed8a77092135f6442b8d5619906a81255 (patch) | |
| tree | b4038c51b01c27a1bc0f1e194045a273800df157 /arch/powerpc/include/asm/mmu_context.h | |
| parent | 013a91b39c2d5158cdc5529803f245bbb0526c7c (diff) | |
| download | lwn-87bbabbed8a77092135f6442b8d5619906a81255.tar.gz lwn-87bbabbed8a77092135f6442b8d5619906a81255.zip | |
powerpc: implementation for arch_override_mprotect_pkey()
arch independent code calls arch_override_mprotect_pkey()
to return a pkey that best matches the requested protection.
This patch provides the implementation.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/mmu_context.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu_context.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index 4d69223d217a..3ba571dfdfd9 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -198,6 +198,11 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma, #define thread_pkey_regs_save(thread) #define thread_pkey_regs_restore(new_thread, old_thread) #define thread_pkey_regs_init(thread) + +static inline int vma_pkey(struct vm_area_struct *vma) +{ + return 0; +} #endif /* CONFIG_PPC_MEM_KEYS */ #endif /* __KERNEL__ */ |