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authorGeorge Beshers <[email protected]>2015-06-18 10:25:13 -0500
committerIngo Molnar <[email protected]>2015-06-19 09:48:03 +0200
commit68722101ec3a0e179408a13708dd020e04f54aab (patch)
tree89848779d52fae9f755787774d37e2d7b1a8a936
parent405963b6a57c60040bc1dad2597f7f4b897954d1 (diff)
locking/lockdep: Remove hard coded array size dependency
An apparent oversight left a hardcoded '4' in place when LOCKSTAT_POINTS was introduced. The contention_point[] and contending_point[] arrays in the structs lock_class and lock_class_stats need to be the same size for the loops in lock_stats() to be correct. This patch allows LOCKSTAT_POINTS to be changed without affecting the correctness of the code. Signed-off-by: George Beshers <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]>
-rw-r--r--include/linux/lockdep.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 066ba4157541..2722111591a3 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -130,8 +130,8 @@ enum bounce_type {
};
struct lock_class_stats {
- unsigned long contention_point[4];
- unsigned long contending_point[4];
+ unsigned long contention_point[LOCKSTAT_POINTS];
+ unsigned long contending_point[LOCKSTAT_POINTS];
struct lock_time read_waittime;
struct lock_time write_waittime;
struct lock_time read_holdtime;