Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/tools/perf/util/rwsem.h b/tools/perf/util/rwsem.h
index 94565ad4d4..ef5cbc31d9 100644
--- a/tools/perf/util/rwsem.h
+++ b/tools/perf/util/rwsem.h
@@ -2,9 +2,20 @@
 #define _PERF_RWSEM_H
 
 #include <pthread.h>
+#include "mutex.h"
+
+/*
+ * Mutexes have additional error checking. Enable to use a mutex rather than a
+ * rwlock for debugging.
+ */
+#define RWS_ERRORCHECK 0
 
 struct rw_semaphore {
+#if RWS_ERRORCHECK
+	struct mutex mtx;
+#else
 	pthread_rwlock_t lock;
+#endif
 };
 
 int init_rwsem(struct rw_semaphore *sem);