perf_counter: Fix dynamic irq_period logging

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We call perf_adjust_freq() from perf_counter_task_tick() which
is is called under the rq->lock causing lock recursion.
However, it's no longer required to be called under the
rq->lock, so remove it from under it.

Also, fix up some related comments.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <20090523163012.476197912@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Peter Zijlstra 2009-05-23 18:28:55 +02:00 • committed by Ingo Molnar

parent c6eb13847b

commit e220d2dcb9

3 changed files with 5 additions and 2 deletions

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1

include/linux/perf_counter.h

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3

kernel/perf_counter.c

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3

kernel/sched.c

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