On Mon, 2012-10-01 at 19:31 +0200, Jiri Olsa wrote:
> @@ -696,7 +696,7 @@ struct perf_branch_stack {
>  
>  struct perf_regs_user {
>         __u64           abi;
> -       struct pt_regs  *regs;
> +       struct pt_regs  regs;
>  };

That's somewhat unfortunate but unavoidable I guess, can't go modify pt_regs. 


> +               if (uregs->abi)
> +                       stack_size = 
> perf_sample_ustack_size(sample_stack_user,
> +                                                            header->size,
> +    

just a style nit, please add {} for all multi-line single stmt
constructs like that, even though not strictly required.

It reduces the possible confusion between multi-line and multi-statement
and reads easier.
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