lkml.org 
[lkml]   [2007]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRE: [Patch] Allocate sparse vmemmap block above 4G
On Fri, 9 Nov 2007, Zou, Nanhai wrote:

> > More magic values, both the 4GiB address here and the magic "1" at the
> > end are problems.
> >
> Yes, the 4UL*1024*1024*1024 could be a define here.

The 4GB boundary here is MAX_DMA32_ADDRESS I guess? We are only having
this problem because of the two DMA zones on x86_64. I thought Andi was
getting rid of the first one at 16MB. If he would do so then ZONE_DMA
could be used instead of DMA32 and everything will be fine.

For now you may want to put

#ifdef CONFIG_ZONE_DMA32

around this code since it depends on DMA32.
-
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: 2007-11-09 02:57    [W:0.062 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site