From: David Chow <davidchow@shaolinmicro.com>
To: linux-mm@kvack.org
Subject: Big memory, no struct page allocation
Date: Sun, 23 Jun 2002 16:55:58 +0800 [thread overview]
Message-ID: <3D158D1E.1090802@shaolinmicro.com> (raw)
Dear all,
Hi, I've got a silly but serious question. I want to allocate a large
buffer (>512MB) in kernel. Normally you use __get_free_page and handle
it with page pointers. But when get to very large (say 1024MB), I will
need to use 2 level of page pointer indirection to carry the page
pointer array. I also find the total size of page struct is quite large
when using lots of pages, what I want is to use memory pages without
struct page, is this possible? By the way, can I use lots of memory in
the kernel, something like 1GB of memory allocation when physically RAM
available? Please give advise. Thanks.
regards,
David
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next reply other threads:[~2002-06-23 8:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-23 8:55 David Chow [this message]
2002-06-23 8:59 ` William Lee Irwin III
2002-06-23 15:31 ` David Chow
2002-06-27 1:38 ` William Lee Irwin III
2002-06-30 18:38 ` David Chow
2002-07-01 17:48 ` Rik van Riel
2002-07-02 6:06 ` William Lee Irwin III
2002-07-03 16:16 ` David Chow
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