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-rw-r--r--malloc/malloc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 85a9f45861..57074108f1 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -2192,10 +2192,12 @@ typedef struct malloc_chunk* mfastbinptr;
struct malloc_state {
/* Serialize access. */
mutex_t mutex;
+ // Should we have padding to move the mutex to its own cache line?
+#if THREAD_STATS
/* Statistics for locking. Only used if THREAD_STATS is defined. */
long stat_lock_direct, stat_lock_loop, stat_lock_wait;
- long pad0_[1]; /* try to give the mutex its own cacheline */
+#endif
/* The maximum chunk size to be eligible for fastbin */
INTERNAL_SIZE_T max_fast; /* low 2 bits used as flags */