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    Subject[RFC v6 38/62] powerpc: implementation for arch_pkeys_enabled()
    Date
    arch_pkeys_enabled() returns true if the cpu
    supports protection key, and the kernel has it
    enabled.

    Signed-off-by: Ram Pai <linuxram@us.ibm.com>
    ---
    arch/powerpc/include/asm/pkeys.h | 5 +++++
    1 files changed, 5 insertions(+), 0 deletions(-)

    diff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h
    index 7a9aade..ea43cb2 100644
    --- a/arch/powerpc/include/asm/pkeys.h
    +++ b/arch/powerpc/include/asm/pkeys.h
    @@ -201,6 +201,11 @@ static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
    return __arch_set_user_pkey_access(tsk, pkey, init_val);
    }

    +static inline bool arch_pkeys_enabled(void)
    +{
    + return pkey_inited;
    +}
    +
    static inline void pkey_mm_init(struct mm_struct *mm)
    {
    if (!pkey_inited)
    --
    1.7.1
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