Re: [PATCH] perf tool: Fix type for references to data_head/tail

[Peter Zijlstra]

On Tue, Apr 07, 2015 at 09:20:37AM -0600, David Ahern wrote:
> data_head and data_tail are defined as __u64 in linux/perf_event.h,
> but perf userspace uses int and unsigned int. Convert all references
> to u64 for consistency.

Ack on that. I suspect this is because >2G mmap()s are a tad silly, but
yes its good to fix that.
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