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SubjectRe: [RFC PATCH 3/9] perf: Add ability to dump part of the user stack
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On Wed, 2010-10-13 at 07:06 +0200, Frederic Weisbecker wrote:
> +++ b/include/linux/perf_event.h
> @@ -227,6 +227,12 @@ struct perf_event_attr {
> __u32 bp_type;
> __u64 bp_addr;
> __u64 bp_len;
> +
> + __u64 __reserved_2;
> + __u64 __reserved_3;
> +
> + __u32 ustack_dump_size;
> + __u32 __reserved_4;
> };

Why add those two __u64 fields?


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