[PATCH] ext3: fix memory leak

We need to unconditionally brelse() the buffer in there, because
journal_remove_journal_head() leaves a ref behind.

release_buffer_page() does that.  Call it all the time because we can usually
strip the buffers and free the page even if it was not marked buffer_freed().

Mainly affects data=journal mode

fs/jbd/commit.c

@@ -727,8 +727,7 @@ void journal_commit_transaction(journal_t *journal)
 			__journal_unfile_buffer(jh);
 			jh->b_transaction = 0;
 			jbd_unlock_bh_state(bh);
-			journal_remove_journal_head(bh);
-			if (buffer_freed(bh))
+			journal_remove_journal_head(bh);  /* needs a brelse */
 			release_buffer_page(bh);
 		}
 		spin_unlock(&journal->j_list_lock);