perf_counter: rework context time

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Since perf_counter_context is switched along with tasks, we can
maintain the context time without using the task runtime clock.

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: <20090406094518.353552838@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2009-04-06 11:45:10 +02:00 • committed by Ingo Molnar

parent 4c9e25428f

commit 4af4998b8a

2 changed files with 37 additions and 51 deletions

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10

include/linux/perf_counter.h

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78

kernel/perf_counter.c

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