Subject: Re: Single file system (buf) read size
To: =?iso-8859-1?Q?P=E5l_Halvorsen?= <>
From: Jason R Thorpe <>
List: tech-kern
Date: 03/15/2001 08:10:38
On Thu, Mar 15, 2001 at 10:07:51AM +0100, Pål Halvorsen wrote:

 > In such a case, is it possible, without too much work - especially in the
 > driver code which I do not know much about, to get > 64 KB read
 > operations?

Yah, you can do it -- just keep in mind that most drivers allocate
DMA maps to map a 64k transfer -- you might need to frob the device
drivers in question to allow larger transfers, but it's usually a
matter of adjusting a single constant (and the rest of the things
get re-computed automatically).

        -- Jason R. Thorpe <>