From: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
To: Shaun Savage <savages@savages.net>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: How do you allocate huge pages.
Date: Tue, 19 Jun 2007 14:38:03 +0200 [thread overview]
Message-ID: <20070619123803.GD22468@traven> (raw)
In-Reply-To: <4677C702.6050102@savages.net>
El Tue, Jun 19, 2007 at 05:07:30AM -0700 Shaun Savage ha dit:
> I am trying to allocate very large memory within the kernel. I want to
> start by allocating one huge (4M) page and using that as buffer space.
possibly vmalloc() is what you're looking for, if it isn't really a
*page* of 4M, what afaik is impossible with a standard kernel.
vmalloc() allocates virtually contiguous memory, as opposed to
kmalloc() which allocates physically contiguous memory.
--
Matthias Kaehlcke
Linux Application Developer
Barcelona
La libertad es como la mañana. Hay quienes esperan dormidos a que
llegue, pero hay quienes desvelan y caminan la noche para alcanzarla
(Subcomandante Marcos)
.''`.
using free software / Debian GNU/Linux | http://debian.org : :' :
`. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4 `-
next prev parent reply other threads:[~2007-06-19 12:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-19 12:07 How do you allocate huge pages Shaun Savage
2007-06-19 12:38 ` Matthias Kaehlcke [this message]
2007-06-20 7:32 ` Jiri Slaby
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