From: Hagen Paul Pfeifer <hpplinuxml@0xdef.net>
To: linux-kernel@vger.kernel.org
Subject: Re: 128 kbytes allocation limit for kmalloc?
Date: Wed, 28 Sep 2005 14:55:09 +0200 [thread overview]
Message-ID: <20050928125509.GA28656@0xdef.net> (raw)
In-Reply-To: <20050927174032.GA26236@archivum.info>
* mailarch@archivum.info | 2005-09-27 19:40:32 [+0200]:
>Hello,
>
>is it possible to allocate more than 128 kbytes in a kernel lkm module?
Yes, multiple kmalloc calls. You can implement your own memory managment
in top of it. For further informations: cat /proc/slabinfo
>When I allocate more than 128 kbytes with the kmalloc call, kmalloc returns NULL.
If you need one continues chunk of memory you must take vmalloc. But
note the performance penalty and some other disadvantages (dma, ...).
HGN
--
Standards are industry's way of codifying obsolescence.
prev parent reply other threads:[~2005-09-28 12:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-27 17:40 128 kbytes allocation limit for kmalloc? mailarch
2005-09-27 17:49 ` Brian Gerst
2005-09-28 12:55 ` Hagen Paul Pfeifer [this message]
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