du: Reuse name_user buffer for child name

src/task_find.bpf.c

@@ -46,7 +46,8 @@ static long iter_dir(uint32_t d_type, size_t namelen, bool match) {
 	}
 	int parent_dfd = dfd[depth];
 
-	void *name_user = u_iterdents64_buf + depth * PATHLEN;
+	/* void *name_user = u_iterdents64_buf + depth * PATHLEN; */
+	void *name_user = u_iterdents64_buf;
 	if (match) {
 		if (flags & PRINT_MATCHES) {
 			write(STDOUT_FILENO, name_user, namelen);
@@ -84,7 +85,8 @@ static long iter_dir(uint32_t d_type, size_t namelen, bool match) {
 	}
 
 	unsigned long child_depth = depth + 1;
-	void *child_name_user = u_iterdents64_buf + child_depth * PATHLEN;
+	/* void *child_name_user = u_iterdents64_buf + child_depth * PATHLEN; */
+	void *child_name_user = name_user;
 
 	curr_depth = child_depth;
 	dfd[curr_depth] = child_dfd;