lockstat: Fix min, max times in /proc/lock_stats

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Fix min, max times in /proc/lock_stats

(1) When collecting lock hold and wait times, if the current minimum
    time is zero, it will be replaced by the next time.

(2) When aggregating minimum and maximum lock hold and wait times
    accross cpus, the values are added, instead of selecting the
    minimum and maximum.

Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4B05BBAE.2050005@am.sony.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Frank Rowand 2009-11-19 13:42:06 -08:00 • committed by Ingo Molnar

parent 6ec22f9b03

commit 109d71c6dd

1 changed files with 10 additions and 3 deletions

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kernel/lockdep.c

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