lkml.org 
[lkml]   [2006]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRRe: [patch 6/6] mm: fix pagecache write deadlocks
On Sun, Oct 15, 2006 at 05:47:03PM +0200, Peter Zijlstra wrote:
> >
> > And we should really decouple it from preempt entirely, in case we
> > ever want to check for it some other way in the pagefault handler.
>
> How about we make sure all kmap_atomic implementations behave properly
> and make in_atomic true.

Hmm, but you may not be doing a copy*user within the kmap. And you may
want an atomic copy*user not within a kmap (maybe).

I think it really would be more logical to do it in a wrapper function
pagefault_disable() pagefault_enable()? ;)

-
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: 2006-10-15 18:01    [W:0.270 / U:0.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site