rand_r 81 tools/testing/radix-tree/iteration_check.c if (rand_r(&seeds[0]) % 50 == 0) { rand_r 114 tools/testing/radix-tree/iteration_check.c if (rand_r(&seeds[1]) % 50 == 0) { rand_r 141 tools/testing/radix-tree/iteration_check.c pgoff = rand_r(&seeds[2]) % MAX_IDX;