Rename mutex_enter_nowait to mutex_enter_nowait_func and add macro

mutex_enter_nowait that supplies the default __FILE__ and __LINE__
arguments. Adjust callers.

include/sync0sync.h

@@ -114,13 +114,20 @@ mutex_enter_func(
 	mutex_t*	mutex,		/* in: pointer to mutex */
 	const char*	file_name,	/* in: file name where locked */
 	ulint		line);		/* in: line where locked */
+/******************************************************************
+NOTE! The following macro should be used in mutex locking, not the
+corresponding function. */
+
+#define mutex_enter_nowait(M)	\
+	mutex_enter_nowait_func((M), __FILE__, __LINE__)
 /************************************************************************
-Tries to lock the mutex for the current thread. If the lock is not acquired
-immediately, returns with return value 1. */
+NOTE! Use the corresponding macro in the header file, not this function
+directly. Tries to lock the mutex for the current thread. If the lock is not
+acquired immediately, returns with return value 1. */
 
 ulint
-mutex_enter_nowait(
-/*===============*/
+mutex_enter_nowait_func(
+/*====================*/
 					/* out: 0 if succeed, 1 if not */
 	mutex_t*	mutex,		/* in: pointer to mutex */
 	const char*	file_name,	/* in: file name where mutex

log/log0log.c

@@ -3270,7 +3270,7 @@ log_peek_lsn(
 			log system mutex */
 	dulint*	lsn)	/* out: if returns TRUE, current lsn is here */
 {
-	if (0 == mutex_enter_nowait(&(log_sys->mutex), __FILE__, __LINE__)) {
+	if (0 == mutex_enter_nowait(&(log_sys->mutex))) {
 		*lsn = log_sys->lsn;
 
 		mutex_exit(&(log_sys->mutex));

sync/sync0rw.c

@@ -563,8 +563,7 @@ rw_lock_debug_mutex_enter(void)
 /*==========================*/
 {
 loop:
-	if (0 == mutex_enter_nowait(&rw_lock_debug_mutex,
-				    __FILE__, __LINE__)) {
+	if (0 == mutex_enter_nowait(&rw_lock_debug_mutex)) {
 		return;
 	}
 
@@ -572,8 +571,7 @@ rw_lock_debug_mutex_enter(void)
 
 	rw_lock_debug_waiters = TRUE;
 
-	if (0 == mutex_enter_nowait(&rw_lock_debug_mutex,
-				    __FILE__, __LINE__)) {
+	if (0 == mutex_enter_nowait(&rw_lock_debug_mutex)) {
 		return;
 	}
 

sync/sync0sync.c

@@ -311,12 +311,13 @@ mutex_free(
 }
 
 /************************************************************************
-Tries to lock the mutex for the current thread. If the lock is not acquired
-immediately, returns with return value 1. */
+NOTE! Use the corresponding macro in the header file, not this function
+directly. Tries to lock the mutex for the current thread. If the lock is not
+acquired immediately, returns with return value 1. */
 
 ulint
-mutex_enter_nowait(
-/*===============*/
+mutex_enter_nowait_func(
+/*====================*/
 					/* out: 0 if succeed, 1 if not */
 	mutex_t*	mutex,		/* in: pointer to mutex */
 	const char*	file_name __attribute__((unused)),