linux-kernel - Re: [PATCH 4/7] perf, x86: Implement IBS interrupt handler

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Message-ID: <1316016805.5040.34.camel@twins>
Date:	Wed, 14 Sep 2011 18:13:25 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Robert Richter <robert.richter@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, Stephane Eranian <eranian@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/7] perf, x86: Implement IBS interrupt handler

On Wed, 2011-09-07 at 18:36 +0200, Robert Richter wrote:
> +       if (event->attr.sample_type & PERF_SAMPLE_RAW) {
> +               ibs_data.caps = ibs_caps;
> +               size = 1;
> +               offset = 1;
> +               do {
> +                   rdmsrl(msr + offset, *buf++);
> +                   size++;
> +                   offset = find_next_bit(perf_ibs->offset_mask,
> +                                          perf_ibs->offset_max,
> +                                          offset + 1);
> +               } while (offset < perf_ibs->offset_max);
> +               raw.size = sizeof(u32) + sizeof(u64) * size;
> +               raw.data = ibs_data.data;
> +               data.raw = &raw;
> +       } 

Another application of for_each_set_bit_continue() ?
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