*lock: Simply use compiler barrier on initialization.

include/ck_brlock.h

@@ -67,7 +67,7 @@ ck_brlock_init(struct ck_brlock *br)
 
 	br->readers = NULL;
 	br->writer = false;
-	ck_pr_fence_store();
+	ck_pr_barrier();
 	return;
 }
 

include/ck_bytelock.h

@@ -62,7 +62,7 @@ ck_bytelock_init(struct ck_bytelock *bytelock)
 	for (i = 0; i < sizeof bytelock->readers; i++)
 		bytelock->readers[i] = false;
 
-	ck_pr_fence_store();
+	ck_pr_barrier();
 	return;
 }
 

include/ck_rwlock.h

@@ -46,7 +46,7 @@ ck_rwlock_init(struct ck_rwlock *rw)
 
 	rw->writer = 0;
 	rw->n_readers = 0;
-	ck_pr_fence_store();
+	ck_pr_barrier();
 	return;
 }
 

include/ck_tflock.h

@@ -74,6 +74,7 @@ ck_tflock_ticket_init(struct ck_tflock_ticket *pf)
 {
 
 	pf->request = pf->completion = 0;
+	ck_pr_barrier();
 	return;
 }