lkml.org 
[lkml]   [2006]   [Oct]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 2/5] mm: fault vs invalidate/truncate race fix
On Tue, Oct 10, 2006 at 11:00:42PM -0700, Andrew Morton wrote:
> On Wed, 11 Oct 2006 15:39:22 +1000
> Nick Piggin <nickpiggin@yahoo.com.au> wrote:
>
> > But I see that it does read twice. Do you want that behaviour retained? It
> > seems like at this level it would be logical to read it once and let lower
> > layers take care of any retries?
>
> argh. Linus has good-sounding reasons for retrying the pagefault-path's
> read a single time, but I forget what they are. Something to do with
> networked filesystems? (adds cc)

While you're there, can anyone tell me why we want an external
ptracer to be able to access pages that are outside i_size? I
haven't removed the logic of course, but I'm curious about the
history and usage of such a thing.


-
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: 2006-10-11 11:25    [W:1.225 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site