From: moreau francis <francis_moreau2000@yahoo.fr>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org, apw@shadowen.org
Subject: Re : Re : sparsemem usage
Date: Thu, 3 Aug 2006 09:07:06 +0000 (GMT) [thread overview]
Message-ID: <20060803090706.99884.qmail@web25813.mail.ukl.yahoo.com> (raw)
Alan Cox wrote:
>
> Mapping out parts of a section is quite normal - think about the 640K to
> 1Mb hole in PC memory space.
OK. But I'm still worry. Please consider the following code
for (...; ...; ...) {
[...]
if (pfn_valid(i))
num_physpages++;
[...]
}
In that case num_physpages won't store an accurate value. Still it will be
used by the kernel to make some statistic assumptions on other kernel
data structure sizes.
Francis
next reply other threads:[~2006-08-03 9:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-03 9:07 moreau francis [this message]
2006-08-03 9:19 ` KAMEZAWA Hiroyuki
2006-08-03 9:47 ` Andy Whitcroft
2006-08-03 12:46 ` Re : " moreau francis
2006-08-03 13:13 ` Andy Whitcroft
2006-08-09 14:19 ` Re : " moreau francis
2006-08-10 4:46 ` KAMEZAWA Hiroyuki
2006-08-10 12:40 ` moreau francis
2006-08-10 12:49 ` KAMEZAWA Hiroyuki
-- strict thread matches above, loose matches on Subject: below --
2006-08-10 15:21 Andy Whitcroft
2006-08-10 15:37 ` Re : " moreau francis
2006-08-11 8:26 ` Andy Whitcroft
2006-08-10 15:05 KAMEZAWA Hiroyuki
2006-08-10 15:23 ` Re : " moreau francis
2006-08-02 15:36 Andy Whitcroft
2006-08-03 9:56 ` Re : " moreau francis
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