Re: [RFC] [PATCH] task_pt_regs for powerpc systems

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

On Mon, 2008-07-07 at 19:52 +0530, Srinivasa D S wrote:
> Hi
>  task_pt_regs() macro defines pt_regs for the given task,  this macro is  
> currently not defined for powerpc arch. We need this macro for 
> upcoming utrace features. 
>  Below attached patch  defines this macro for powerpc arch. Please let 
> me know your comments on this.
> 
> Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>

Looks good to me. I'll include it in the next batch.

Cheers,
Ben.

> ---
>  include/asm-powerpc/processor.h |    2 ++
>  1 file changed, 2 insertions(+)
> 
> Index: linux-2.6.26-rc9/include/asm-powerpc/processor.h
> ===================================================================
> --- linux-2.6.26-rc9.orig/include/asm-powerpc/processor.h
> +++ linux-2.6.26-rc9/include/asm-powerpc/processor.h
> @@ -214,6 +214,8 @@ struct thread_struct {
>  #define thread_saved_pc(tsk)    \
>          ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
>  
> +#define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.regs)
> +
>  unsigned long get_wchan(struct task_struct *p);
>  
>  #define KSTK_EIP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)