perf_counter: x86: Allow unpriviliged use of NMIs

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Apply sysctl_perf_counter_priv to NMIs. Also, fail the counter
creation instead of silently down-grading to regular interrupts.

[ Impact: allow wider perf-counter usage ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2009-05-13 10:02:57 +02:00 • committed by Ingo Molnar

parent f5a5a2f6e6

commit a026dfecc0

1 changed files with 4 additions and 1 deletions

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arch/x86/kernel/cpu/perf_counter.c

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