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SubjectRe: [PATCH] perf, ibs: Check syscall attribute flags
On 9/7/12 10:41 AM, Robert Richter wrote:
> + struct perf_event_attr notsupp = {
> + .exclude_user = 1,
> + .exclude_kernel = 1,
> + .exclude_hv = 1,
> + .exclude_idle = 1,
> + .exclude_host = 1,
> + .exclude_guest = 1,
> + };
>
> perf_ibs = get_ibs_pmu(event->attr.type);
> if (perf_ibs) {
> @@ -229,6 +237,9 @@ static int perf_ibs_init(struct perf_event *event)
> if (event->pmu != &perf_ibs->pmu)
> return -ENOENT;
>
> + if (perf_flags(&event->attr) & perf_flags(&notsupp))
> + return -EINVAL;
> +

Am I reading this right - if exclude_guest is set then perf_ibs_init
returns -EINVAL?

David



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