lkml.org 
[lkml]   [2006]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: cmpxchg() in kernel/workqueue.c breaks things
On Thu, Dec 07, 2006 at 12:09:50AM -0800, David Miller wrote:
>
> David, you have to fix the locking scheme used in kernel/workqueue.c,
> you absolutely cannot assume that cmpxchg() is available on all
> platforms. This breaks the build on the platforms that don't
> have such an instruction, and no it cannot emulated.
>
> Also, because Alan Cox's machine (zeniv) went down, a few folks such
> as Al Viro (CC:'d) had no opportunity to comment on your changes
> before they went in. This mess would have been avoided if Al had a
> chance to read over this, in particular since he does cross sparc32
> builds he knows that cmpxchg is not available there.

FWIW, the *real* problem with that (and several other recent breakage
incidents) would be avoided if massive cross-arch patchsets would be
posted to linux-arch first.

It wouldn't catch all crap, but at least it would get folks to check
if the damn thing builds.
-
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: 2006-12-07 09:27    [W:0.040 / U:6.744 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site