Kevin,

What about enclosing this into a #ifdef __ppc__ ?
I don't know the right macro for all PPC, but I am
sure there is one.

On Wed, Apr 11, 2007 at 11:10:00AM -0500, Kevin Corry wrote:
> Powerpc does not have an explicit check for the TIF_PERFMON_WORK thread-info
> flag before calling __pfm_handle_work(), so add that check at the beginning
> of __pfm_handle_work.
> 
> This is just a temporary fix. Obviously we'd like to fix the powerpc code to
> make that check before calling __pfm_handle_work() to prevent the function
> call overhead, but the call is made from assembly code, so it will take a
> little while to figure out how to perform the check correctly. For now, if
> you want to run perfmon on powerpc, you'll need to use this patch.
> 
> Signed-off-by: Kevin Corry <[EMAIL PROTECTED]>
> 
> Index: linux-2.6.20-arnd3-perfmon2/perfmon/perfmon.c
> ===================================================================
> --- linux-2.6.20-arnd3-perfmon2.orig/perfmon/perfmon.c
> +++ linux-2.6.20-arnd3-perfmon2/perfmon/perfmon.c
> @@ -518,6 +518,9 @@ void __pfm_handle_work(struct pt_regs *r
>       unsigned long flags, dummy_flags;
>       int type, ret, can_release;
>  
> +     if (!test_thread_flag(TIF_PERFMON_WORK))
> +             return;
> +
>       if (!user_mode(regs))
>               return;
>  
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-- 

-Stephane
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