lkml.org 
[lkml]   [2007]   [May]   [22]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateTue, 22 May 2007 13:39:06 +0900
FromKAMEZAWA Hiroyuki <>
SubjectRe: Define CONFIG_BOUNCE to avoid useless inclusion of bounce buffer logic.
On Mon, 21 May 2007 21:03:40 -0700 (PDT)
Christoph Lameter <clameter@sgi.com> wrote:

> The bounce buffer logic is included on systems that do not need it.
> If a system does not have zones like ZONE_DMA and ZONE_HIGHMEM that
> can lead to the use of bounce buffers then there is no need to reserve 
> memory pools etc etc. This is true f.e. for SGI Altix.

> +config BOUNCE
> +	def_bool y
> +	depends on BLOCK && MMU && (ZONE_DMA || HIGHMEM)
> +

AFAIK, ppc has only ZONE_DMA and it never needs bounce.
Is this ok ?

-Kame

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-05-22 06:41    [from the cache]
©2003-2008