From: "H. Peter Anvin" <hpa@zytor.com>
To: Xishi Qiu <qiuxishi@huawei.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
the arch/x86 maintainers <x86@kernel.org>,
Linn Crosetto <linn@hp.com>, Pekka Enberg <penberg@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux MM <linux-mm@kvack.org>
Subject: Re: [PATCH] mm,x86: fix span coverage in e820_all_mapped()
Date: Tue, 10 Dec 2013 20:02:45 -0800 [thread overview]
Message-ID: <52A7E3E5.2010609@zytor.com> (raw)
In-Reply-To: <52A7E223.9030605@huawei.com>
On 12/10/2013 07:55 PM, Xishi Qiu wrote:
>
> I think there is a problem.
> e.g.
> [start, end)=[8, 12), and [A, B)=[0, 10), [B, C)=[10,20),
> then e820_all_mapped() will return 1, it spans two regions.
>
Why is that a problem?
-hpa
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next prev parent reply other threads:[~2013-12-11 4:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-10 9:06 Xishi Qiu
2013-12-10 21:06 ` Yinghai Lu
2013-12-10 21:29 ` H. Peter Anvin
2013-12-10 21:52 ` Yinghai Lu
2013-12-10 22:51 ` H. Peter Anvin
2013-12-11 0:35 ` Yinghai Lu
2013-12-11 1:06 ` H. Peter Anvin
2013-12-11 1:42 ` Xishi Qiu
2013-12-11 1:35 ` Xishi Qiu
2013-12-11 2:55 ` H. Peter Anvin
2013-12-11 3:55 ` Xishi Qiu
2013-12-11 4:02 ` H. Peter Anvin [this message]
2013-12-11 4:39 ` Xishi Qiu
2013-12-11 5:27 ` H. Peter Anvin
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