Re: [PATCH 10/24] x86/oprofile: Add IBS support for AMD CPUs, IBSbuffer handling routines

[Ingo Molnar]

* Robert Richter <robert.richter@xxxxxxx> wrote:

> @@ -272,7 +273,7 @@ static void increment_tail(struct oprofile_cpu_buffer *b)
>  {
>  	unsigned long new_tail = b->tail_pos + 1;
>  
> -	rmb();
> +	rmb();	/* be sure fifo pointers are synchromized */

ignore my previous mail :-)

> +	if (ibs_code == IBS_OP_BEGIN) {
> +	add_sample(cpu_buf, ibs[6], ibs[7]);
> +	add_sample(cpu_buf, ibs[8], ibs[9]);
> +	add_sample(cpu_buf, ibs[10], ibs[11]);
> +	}

style problem.

> +	int is_kernel = !user_mode(regs);
> +	unsigned long pc = profile_pc(regs);
> +
> +	struct oprofile_cpu_buffer *cpu_buf =
> +			 &per_cpu(cpu_buffer, smp_processor_id());

please dont put newlines in the middle of variable definitions.

>  /* transient events for the CPU buffer -> event buffer */
>  #define CPU_IS_KERNEL 1
>  #define CPU_TRACE_BEGIN 2
> +#define IBS_FETCH_BEGIN 3
> +#define IBS_OP_BEGIN    4

vertical alignment would help readability i guess. Plus use an enum 
instead of a macro.

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/