From: Balbir Singh <bsingharora@gmail.com>
To: Ram Pai <linuxram@us.ibm.com>
Cc: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org, x86@kernel.org, linux-doc@vger.kernel.org,
arnd@arndb.de, akpm@linux-foundation.org, corbet@lwn.net,
mingo@redhat.com, benh@kernel.crashing.org, paulus@samba.org,
khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
hbabu@us.ibm.com, mhocko@kernel.org, bauerman@linux.vnet.ibm.com,
ebiederm@xmission.com
Subject: Re: [PATCH 1/6] mm: introduce an additional vma bit for powerpc pkey
Date: Fri, 22 Sep 2017 16:12:43 +1000 [thread overview]
Message-ID: <20170922161243.7d03a5b6@firefly.ozlabs.ibm.com> (raw)
In-Reply-To: <1505524870-4783-2-git-send-email-linuxram@us.ibm.com>
On Fri, 15 Sep 2017 18:21:05 -0700
Ram Pai <linuxram@us.ibm.com> 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@us.ibm.com>
> ---
Acked-by: Balbir Singh <bsingharora@gmail.com>
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next prev parent reply other threads:[~2017-09-22 6:12 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-16 1:21 [PATCH 0/6] mm, x86, powerpc: Memory Protection Keys enhancement Ram Pai
2017-09-16 1:21 ` [PATCH 1/6] mm: introduce an additional vma bit for powerpc pkey Ram Pai
2017-09-22 6:12 ` Balbir Singh [this message]
2017-09-16 1:21 ` [PATCH 2/6] mm, x86 : introduce arch_pkeys_enabled() Ram Pai
2017-09-16 1:21 ` [PATCH 3/6] mm: display pkey in smaps if arch_pkeys_enabled() is true Ram Pai
2017-09-22 6:02 ` Balbir Singh
2017-09-22 6:08 ` Balbir Singh
2017-09-16 1:21 ` [PATCH 4/6] mm/mprotect, powerpc/mm/pkeys, x86/mm/pkeys: Add sysfs interface Ram Pai
2017-09-22 6:00 ` Balbir Singh
2017-09-22 16:47 ` Ram Pai
2017-09-16 1:21 ` [PATCH 5/6] Documentation/x86: Move protecton key documentation to arch neutral directory Ram Pai
2017-09-16 1:21 ` [PATCH 6/6] Documentation/vm: PowerPC specific updates to memory protection keys Ram Pai
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