lkml.org 
[lkml]   [2007]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user
Christoph Lameter wrote:
> On Wed, 16 May 2007, Nick Piggin wrote:
>
>
>>Well sure, if that's all Christoph is worried about, then it isn't
>>really valid because in generic code we have to follow the architecture
>>abstraction API -- there is no "non highmem platform" in generic code :)
>
>
> But there is a default KM_USER0 that is used in many functions.
>
> F.e.
>
> filemap_copy_from_user *_iovec xip_truncate_page clear_user_highpage
> clear_highpage copy_user_highpage copy_highpage
>
> So explicitly mentioning KM_USER0 in every function call is not a
> requirement.

You probably have an argument there... but that's not to do with
highmem platforms or not.

--
SUSE Labs, Novell Inc.
-
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: 2007-05-16 08:23    [W:0.028 / U:0.512 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site