lkml.org 
[lkml]   [2010]   [Jan]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: cache alias in mmap + write
From
On Thu, Jan 21, 2010 at 9:32 AM, Jamie Lokier <jamie@shareable.org> wrote:
> KOSAKI Motohiro wrote:
>>  2. Add some commnet. almost developer only have x86 machine. so, arm
>>     specific trick need additional explicit explanation. otherwise anybody
>>     might break this code in the future.
>
> That's Documentation/cachetlb.txt.
>
> What's being discussed here is not ARM-specific, although it appears
> maintainers of different architecture (ARM and MIPS for a start) may
> have different ideas about what they are guaranteeing to userspace.
> It sounds like MIPS expects userspace to use msync() sometimes (even
> though Linux msync(MS_INVALIDATE) is quite broken), and ARM expects to
> to keep mappings coherent automatically (which is sometimes slower
> than necessary, but usually very helpful).
>
>>  3. Resend the patch. original mail isn't good patch format. please
>>  consider to reduce akpm suffer.
>
> This type of change in generic code would need review from a number of
> architecture maintainers, I'd expect.
>
So should I broadcast this mail in order to get their attentions,
linux-arch@vger.kernel.org?

Thanks!
> -- Jamie
>
--
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: 2010-01-21 04:09    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site