diff options
Diffstat (limited to 'tools/testing/radix-tree/iteration_check.c')
| -rw-r--r-- | tools/testing/radix-tree/iteration_check.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/tools/testing/radix-tree/iteration_check.c b/tools/testing/radix-tree/iteration_check.c index 9adb8e7415a6..11d570c3fc83 100644 --- a/tools/testing/radix-tree/iteration_check.c +++ b/tools/testing/radix-tree/iteration_check.c @@ -20,6 +20,7 @@ #define TAG 0 static pthread_mutex_t tree_lock = PTHREAD_MUTEX_INITIALIZER; static pthread_t threads[NUM_THREADS]; +static unsigned int seeds[3]; RADIX_TREE(tree, GFP_KERNEL); bool test_complete; @@ -71,7 +72,7 @@ static void *tagged_iteration_fn(void *arg) continue; } - if (rand() % 50 == 0) + if (rand_r(&seeds[0]) % 50 == 0) slot = radix_tree_iter_next(&iter); } rcu_read_unlock(); @@ -111,7 +112,7 @@ static void *untagged_iteration_fn(void *arg) continue; } - if (rand() % 50 == 0) + if (rand_r(&seeds[1]) % 50 == 0) slot = radix_tree_iter_next(&iter); } rcu_read_unlock(); @@ -129,7 +130,7 @@ static void *remove_entries_fn(void *arg) while (!test_complete) { int pgoff; - pgoff = rand() % 100; + pgoff = rand_r(&seeds[2]) % 100; pthread_mutex_lock(&tree_lock); item_delete(&tree, pgoff); @@ -146,9 +147,11 @@ void iteration_test(void) printf("Running iteration tests for 10 seconds\n"); - srand(time(0)); test_complete = false; + for (i = 0; i < 3; i++) + seeds[i] = rand(); + if (pthread_create(&threads[0], NULL, tagged_iteration_fn, NULL)) { perror("pthread_create"); exit(1); |