Re: [PATCH 1/6] mm: introduce an additional vma bit for powerpc pkey

From: Balbir Singh
Date: Fri Sep 22 2017 - 02:13:01 EST


On Fri, 15 Sep 2017 18:21:05 -0700
Ram Pai <linuxram@xxxxxxxxxx> wrote:

> Currently only 4bits are allocated in the vma flags to hold 16
> keys. This is sufficient for x86. PowerPC supports 32 keys,
> which needs 5bits. This patch allocates an additional bit.
>
> Signed-off-by: Ram Pai <linuxram@xxxxxxxxxx>
> ---

Acked-by: Balbir Singh <bsingharora@xxxxxxxxx>