close[t:4756] Remove the pwrite_lock_init and destroy functions. Closes #4756.

git-svn-id: file:///svn/toku/tokudb@42143 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt-serialize.c

@@ -83,18 +83,6 @@ toku_brt_serialize_destroy(void) {
 static toku_pthread_mutex_t pwrite_mutex = TOKU_PTHREAD_MUTEX_INITIALIZER;
 static int pwrite_is_locked=0;
 
-int 
-toku_pwrite_lock_init(void) {
-    int r = toku_pthread_mutex_init(&pwrite_mutex, NULL); resource_assert_zero(r);
-    return r;
-}
-
-int 
-toku_pwrite_lock_destroy(void) {
-    int r = toku_pthread_mutex_destroy(&pwrite_mutex); resource_assert_zero(r);
-    return r;
-}
-
 static inline void
 lock_for_pwrite (void) {
     // Locks the pwrite_mutex.

newbrt/brt.c

@@ -6489,22 +6489,6 @@ int toku_brt_truncate (BRT brt) {
     return r;
 }
 
-static int
-toku_brt_lock_init(void) {
-    int r = 0;
-    if (r==0)
-	r = toku_pwrite_lock_init();
-    return r;
-}
-
-static int
-toku_brt_lock_destroy(void) {
-    int r = 0;
-    if (r==0) 
-	r = toku_pwrite_lock_destroy();
-    return r;
-}
-
 int toku_brt_init(void (*ydb_lock_callback)(void),
 		  void (*ydb_unlock_callback)(void),
 		  void (*db_set_brt)(DB*,BRT)) {
@@ -6512,8 +6496,6 @@ int toku_brt_init(void (*ydb_lock_callback)(void),
     //Portability must be initialized first
     if (r==0) 
 	r = toku_portability_init();
-    if (r==0) 
-	r = toku_brt_lock_init();
     if (r==0) 
 	r = toku_checkpoint_init(ydb_lock_callback, ydb_unlock_callback);
     if (r == 0)
@@ -6527,8 +6509,6 @@ int toku_brt_destroy(void) {
     int r = 0;
     if (r == 0)
 	r = toku_brt_serialize_destroy();
-    if (r==0) 
-	r = toku_brt_lock_destroy();
     if (r==0)
 	r = toku_checkpoint_destroy();
     //Portability must be cleaned up last