[PATCH] systemtap: fix up on_each_cpu() for kernels 2.6.26+

[Stone, Joshua I]

James Bottomley wrote:
> In kernel 2.6.26, this patch
>
> commit 15c8b6c1aaaf1c4edd67e2f02e4d8e1bd1a51c0d
> Author: Jens Axboe <jens.axboe@oracle.com>
> Date:   Fri May 9 09:39:44 2008 +0200
>
>     on_each_cpu(): kill unused 'retry' parameter
>
> means that runtime/time.c is now using the wrong calling conventions.
> Fix this up and surround it by kernel versioning #ifdefs.

On a closer look, the referenced commit wasn't actually merged until
sometime between v2.6.26-git2 and -git3.  The released v2.6.26 still
has 'retry' in on_each_cpu(), so we'll either have to use an autoconf
test to detect the change, or wait and key the #ifdef on 2.6.27.

Josh