From: "H. Peter Anvin" <hpa@zytor.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Jacob Shin <jacob.shin@amd.com>, Tejun Heo <tj@kernel.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 03/10] x86, mm: get early page table from BRK
Date: Fri, 12 Oct 2012 07:18:03 +0800 [thread overview]
Message-ID: <507753AB.2050204@zytor.com> (raw)
In-Reply-To: <CAE9FiQXWQCdawOw3QX6-c6ajQE73oZd0qrEnbisK0qOyQzUgSQ@mail.gmail.com>
On 10/12/2012 06:55 AM, Yinghai Lu wrote:
> On Thu, Oct 11, 2012 at 7:41 AM, Konrad Rzeszutek Wilk
> <konrad@kernel.org> wrote:
>> On Wed, Oct 10, 2012 at 08:49:05AM -0700, Yinghai Lu wrote:
>>>
>>> yes that is some extreme case:
>>> assume that 2M range is [2T-2M, 2T),
>>
>> What is T in here? Terabyte? Is the '[' vs ')' a significance in your
>> explanation? Should it be '[2T-2M, 2T]' ?
>
> yes, T is terabyte
>
> [2T-2M, 2T) is equal to [2T-2M, 2T-1]
>
> ) mean the boundary is not included.
>
Right... and just to defend Yinghai here, this is a standard
mathematical notation.
-hpa
next prev parent reply other threads:[~2012-10-11 23:18 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-09 4:39 [PATCH -v2 00/10] x86: Use BRK to pre mapping page table to make xen happy Yinghai Lu
2012-10-09 4:39 ` [PATCH 01/10] x86, mm: align start address to correct big page size Yinghai Lu
2012-10-09 4:39 ` [PATCH 02/10] x86, mm: Use big page size for small memory range Yinghai Lu
2012-10-09 4:39 ` [PATCH 03/10] x86, mm: get early page table from BRK Yinghai Lu
2012-10-09 16:01 ` Konrad Rzeszutek Wilk
2012-10-10 1:03 ` Yinghai Lu
2012-10-10 14:17 ` Konrad Rzeszutek Wilk
2012-10-10 15:49 ` Yinghai Lu
2012-10-11 14:41 ` Konrad Rzeszutek Wilk
2012-10-11 22:55 ` Yinghai Lu
2012-10-11 23:18 ` H. Peter Anvin [this message]
2012-10-09 4:39 ` [PATCH 04/10] x86, mm: Don't clear page table if next range is ram Yinghai Lu
2012-10-09 16:04 ` Konrad Rzeszutek Wilk
2012-10-10 1:08 ` Yinghai Lu
2012-10-09 4:39 ` [PATCH 05/10] x86, mm: Remove early_memremap workaround for page table accessing Yinghai Lu
2012-10-09 4:39 ` [PATCH 06/10] x86, mm: only keep initial mapping for ram Yinghai Lu
2012-10-09 4:39 ` [PATCH 07/10] x86, xen, mm: Do not need to check if page table is ioremap Yinghai Lu
2012-10-09 16:13 ` Konrad Rzeszutek Wilk
2012-10-09 4:39 ` [PATCH 08/10] x86, xen, mm: fix mapping_pagetable_reserve logic Yinghai Lu
2012-10-09 6:12 ` H. Peter Anvin
2012-10-09 6:33 ` Yinghai Lu
2012-10-09 7:22 ` H. Peter Anvin
2012-10-09 12:22 ` Stefano Stabellini
2012-10-09 14:15 ` H. Peter Anvin
2012-10-09 4:39 ` [PATCH 09/10] x86, mm: Hide pgt_buf_* into internal to xen Yinghai Lu
2012-10-09 4:39 ` [PATCH 10/10] x86, mm: Add early_pgt_buf_* Yinghai Lu
2012-10-09 6:07 ` [PATCH -v2 00/10] x86: Use BRK to pre mapping page table to make xen happy H. Peter Anvin
2012-10-09 6:21 ` Yinghai Lu
2012-10-09 6:25 ` H. Peter Anvin
2012-10-09 6:45 ` Yinghai Lu
2012-10-09 12:19 ` Stefano Stabellini
2012-10-09 18:27 ` Yinghai Lu
2012-10-10 0:00 ` Yinghai Lu
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