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To: Christian Hildner <christian.hildner@hob.de>
Cc: davidm@hpl.hp.com, linux ia64 kernel list <linux-ia64@linuxia64.org>,
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Subject: Re: [Linux-ia64] kmalloc() size-limitation
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From: Jes Sorensen <jes@sunsite.dk>
Date: 04 Feb 2002 22:16:41 +0100
In-Reply-To: Christian Hildner's message of "Tue, 15 Jan 2002 08:14:52 +0100"
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Christian Hildner <christian.hildner@hob.de> writes:

> David,
> 
> you proposed me to use alloc_pages() instead of kmalloc() in order
> to get memory bigger than the 128K limit of the kmalloc() call. But
> even driver-developers don't want to handle with the page struct
> unless this is unavoidable. Which are the disadvantages of
> increasing the size limit of kmalloc() to 256K, 512K or 1M since
> machines are getting bigger and 64Bit machines break with current
> memory limitations?

Because drivers needs to work on all architectures and relying on
different hahavior from kmalloc() is bad.

Jes