[PATCH 0/6] mm, x86, powerpc: Memory Protection Keys enhancement · Ram Pai <hidden> · 2017-09-16
[PATCH 1/6] mm: introduce an additional vma bit for powerpc pkey · Ram Pai <hidden> · 2017-09-16
Re: [PATCH 1/6] mm: introduce an additional vma bit for powerpc pkey · Balbir Singh <bsingharora@gmail.com> · 2017-09-22
[PATCH 3/6] mm: display pkey in smaps if arch_pkeys_enabled() is true · Ram Pai <hidden> · 2017-09-16
Re: [PATCH 3/6] mm: display pkey in smaps if arch_pkeys_enabled() is true · Balbir Singh <bsingharora@gmail.com> · 2017-09-22
Re: [PATCH 3/6] mm: display pkey in smaps if arch_pkeys_enabled() is true · Balbir Singh <bsingharora@gmail.com> · 2017-09-22
[PATCH 5/6] Documentation/x86: Move protecton key documentation to arch neutral directory · Ram Pai <hidden> · 2017-09-16
[PATCH 6/6] Documentation/vm: PowerPC specific updates to memory protection keys · Ram Pai <hidden> · 2017-09-16
[PATCH 4/6] mm/mprotect, powerpc/mm/pkeys, x86/mm/pkeys: Add sysfs interface · Ram Pai <hidden> · 2017-09-16
Re: [PATCH 4/6] mm/mprotect, powerpc/mm/pkeys, x86/mm/pkeys: Add sysfs interface · Balbir Singh <bsingharora@gmail.com> · 2017-09-22
Re: [PATCH 4/6] mm/mprotect, powerpc/mm/pkeys, x86/mm/pkeys: Add sysfs interface · Ram Pai <hidden> · 2017-09-22
[PATCH 2/6] mm, x86 : introduce arch_pkeys_enabled() · Ram Pai <hidden> · 2017-09-16

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

From: Balbir Singh <bsingharora@gmail.com>
Date: 2017-09-22 06:12:57
Also in: linux-arch, linux-mm, lkml

On Fri, 15 Sep 2017 18:21:05 -0700
Ram Pai [off-list ref] 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 <redacted>
---

Acked-by: Balbir Singh <bsingharora@gmail.com>

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