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Commit 04148b73 authored by Joe Korty's avatar Joe Korty Committed by Ingo Molnar
Browse files

lockstat: repair erronous contention statistics 



Fix bad contention counting in /proc/lock_stat.

/proc/lockstat tries to gather per-ip contention
statistics per-lock.  This was failing due to
a garbage per-ip index selector being used.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 2189459d

kernel/lockdep.c

+1 −1
Original line number Diff line number Diff line
@@ -3029,7 +3029,7 @@ found_it: 


	stats = get_lock_stats(hlock_class(hlock));

	if (point < ARRAY_SIZE(stats->contention_point))

		stats->contention_point[i]++;

		stats->contention_point[point]++;

	if (lock->cpu != smp_processor_id())

		stats->bounces[bounce_contended + !!hlock->read]++;

	put_lock_stats(stats);