lkml.org 
[lkml]   [2006]   [Sep]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: lockdep oddity
On Wed, Sep 06, 2006 at 12:47:24AM -0700, Andrew Morton wrote:
> On Wed, 6 Sep 2006 09:20:43 +0200
> Heiko Carstens <heiko.carstens@de.ibm.com> wrote:
>
> > I'm also wondering why the profile
> > patch contains this:
> >
> > + if (ret)
> > + likeliness->count[1]++;
> > + else
> > + likeliness->count[0]++;
> >
> > This isn't smp safe. Is that on purpose or a bug?
>
> Purposeful. This is called from all contexts, including NMI.

Why not use atomic_inc then? Or is there some architecture dependent
limitation that it can't be done in every context?
-
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: 2006-09-06 10:09    [W:0.100 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site