jbd: Fix debug message in do_get_write_access()

'buffer_head' should be 'journal_head'.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index c9bb7a7..846a3f3 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -526,7 +526,7 @@
 	transaction = handle->h_transaction;
 	journal = transaction->t_journal;
 
-	jbd_debug(5, "buffer_head %p, force_copy %d\n", jh, force_copy);
+	jbd_debug(5, "journal_head %p, force_copy %d\n", jh, force_copy);
 
 	JBUFFER_TRACE(jh, "entry");
 repeat: