From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x242.google.com (mail-pg0-x242.google.com [IPv6:2607:f8b0:400e:c05::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xz37D70HnzDsMC for ; Fri, 22 Sep 2017 16:12:56 +1000 (AEST) Received: by mail-pg0-x242.google.com with SMTP id j16so117515pga.2 for ; Thu, 21 Sep 2017 23:12:56 -0700 (PDT) Date: Fri, 22 Sep 2017 16:12:43 +1000 From: Balbir Singh To: Ram Pai 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 Message-ID: <20170922161243.7d03a5b6@firefly.ozlabs.ibm.com> In-Reply-To: <1505524870-4783-2-git-send-email-linuxram@us.ibm.com> References: <1505524870-4783-1-git-send-email-linuxram@us.ibm.com> <1505524870-4783-2-git-send-email-linuxram@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 15 Sep 2017 18:21:05 -0700 Ram Pai 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 > --- Acked-by: Balbir Singh