perf: Fix mmap_page::offset computation

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There's multiple reason the counter might be unavailable, change the
condition to !->index since perf_event_index() should return 0 for all
those cases.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-1ixr3olci40w8rgv2evv2ldh@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2011-11-21 20:58:59 +01:00 • committed by Ingo Molnar

parent 35edc2a509

commit 365a403848

1 changed files with 1 additions and 1 deletions

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kernel/events/core.c

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