Re: [PATCH 08/24] OProfile: Moving increment_tail() inbuffer_sync.c

From: Ingo Molnar
Date: Sat Jul 26 2008 - 05:56:37 EST



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

> +static void increment_tail(struct oprofile_cpu_buffer *b)
> +{
> + unsigned long new_tail = b->tail_pos + 1;
> +
> + rmb();

this barrier needs a comment.

Ingo
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