perf_counter: Change data head from u32 to u64

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Since some people worried that 4G might not be a large enough
as an mmap data window, extend it to 64 bit for capable
platforms.

Reported-by: Stephane Eranian <eranian@googlemail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Peter Zijlstra 2009-06-02 16:16:02 +02:00 • committed by Ingo Molnar

parent e4abb5d4f7

commit 8e3747c13c

2 changed files with 12 additions and 10 deletions

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7

include/linux/perf_counter.h

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15

kernel/perf_counter.c

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