From owner-svn-src-all@FreeBSD.ORG  Thu Jan 23 05:50:23 2014
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id C30D39A0;
 Thu, 23 Jan 2014 05:50:23 +0000 (UTC)
Received: from elvis.mu.org (elvis.mu.org [192.203.228.196])
 by mx1.freebsd.org (Postfix) with ESMTP id A9D6D1151;
 Thu, 23 Jan 2014 05:50:23 +0000 (UTC)
Received: from Alfreds-MacBook-Pro.local (unknown [50.204.88.5])
 by elvis.mu.org (Postfix) with ESMTPSA id CBB371A3C26;
 Wed, 22 Jan 2014 21:50:21 -0800 (PST)
Message-ID: <52E0AD9A.2000704@freebsd.org>
Date: Wed, 22 Jan 2014 21:50:18 -0800
From: Alfred Perlstein <alfred@freebsd.org>
Organization: FreeBSD
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9;
 rv:24.0) Gecko/20100101 Thunderbird/24.2.0
MIME-Version: 1.0
To: Rui Paulo <rpaulo@FreeBSD.org>, Adrian Chadd <adrian.chadd@gmail.com>
Subject: Re: svn commit: r260898 - head/sys/kern
References: <201401200159.s0K1xa5X012123@svn.freebsd.org>
 <EA6A69A5-0620-4BF9-9871-268C416D2F58@felyko.com>
 <1536225.gsjt6oXMt2@pippin.baldwin.cx>
 <CAJ-VmokgEr1THSfusi3h_3rKaQw4K=MxCOXhFWSB--Lj+OB6+w@mail.gmail.com>
 <0F26E4E1-5D75-413E-B92B-AA7092B87D89@FreeBSD.org>
In-Reply-To: <0F26E4E1-5D75-413E-B92B-AA7092B87D89@FreeBSD.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
 src-committers@freebsd.org, Neel Natu <neel@freebsd.org>,
 John Baldwin <jhb@freebsd.org>
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 23 Jan 2014 05:50:23 -0000


On 1/22/14, 8:34 PM, Rui Paulo wrote:
> On 22 Jan 2014, at 20:05, Adrian Chadd <adrian.chadd@gmail.com> wrote:
>
>> .. Make it be an offset into the table rather than a pointer, then we can do dirty rcu style hacks to just replace and grow the table as we need more memory.
>>
>> Don't we have a standard way to pull memory from the top of the physmem area early on for allocations like this?
> Perhaps a bit overkill for this problem?

Probably.. I keep thinking we should just increase the size by 2x but 
allow platforms to override. for "SMALL".

-Alfred