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SubjectRe: [RFC v5 12/38] mm: ability to disable execute permission on a key at creation
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On 07/05/2017 02:21 PM, Ram Pai wrote:
> Currently sys_pkey_create() provides the ability to disable read
> and write permission on the key, at creation. powerpc has the
> hardware support to disable execute on a pkey as well.This patch
> enhances the interface to let disable execute at key creation
> time. x86 does not allow this. Hence the next patch will add
> ability in x86 to return error if PKEY_DISABLE_EXECUTE is
> specified.
>
> Signed-off-by: Ram Pai <linuxram@us.ibm.com>
> ---
> include/uapi/asm-generic/mman-common.h | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
> index 8c27db0..bf4fa07 100644
> --- a/include/uapi/asm-generic/mman-common.h
> +++ b/include/uapi/asm-generic/mman-common.h
> @@ -74,7 +74,9 @@
>
> #define PKEY_DISABLE_ACCESS 0x1
> #define PKEY_DISABLE_WRITE 0x2
> +#define PKEY_DISABLE_EXECUTE 0x4
> #define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\
> - PKEY_DISABLE_WRITE)
> + PKEY_DISABLE_WRITE |\
> + PKEY_DISABLE_EXECUTE)

If you do this, it breaks bisection. Can you please just do this in one
patch?

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