perf_counter: x86: Fix up the amd NMI/INT throttle

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perf_counter_unthrottle() restores throttle_ctrl, buts its never set.
Also, we fail to disable all counters when throttling.

[ Impact: fix rare stuck perf-counters when they are throttled ]

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 13:21:36 +02:00 • committed by Ingo Molnar

parent 53020fe81e

commit 962bf7a66e

1 changed files with 26 additions and 12 deletions

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arch/x86/kernel/cpu/perf_counter.c

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