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bcachefs: Add error handling to unit & perf tests 

This way, these tests can be used with tests that inject IO errors and
shut down the filesystem.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-12-01 12:23:55 -05:00 committed by Kent Overstreet
parent 231db03c57
commit ec3d21a9f2
3 changed files with 170 additions and 88 deletions
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7
fs/bcachefs/sysfs.c
View File

@ -503,10 +503,11 @@ STORE(bch2_fs)
if (threads_str &&
!(ret = kstrtouint(threads_str, 10, &threads)) &&
!(ret = bch2_strtoull_h(nr_str, &nr)))
bch2_btree_perf_test(c, test, nr, threads);
else
size = ret;
ret = bch2_btree_perf_test(c, test, nr, threads);
kfree(tmp);
if (ret)
size = ret;
}
#endif
return size;

249
fs/bcachefs/tests.c
View File

@ -26,7 +26,7 @@ static void delete_test_keys(struct bch_fs *c)
/* unit tests */
static void test_delete(struct bch_fs *c, u64 nr)
static int test_delete(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
@ -41,24 +41,37 @@ static void test_delete(struct bch_fs *c, u64 nr)
BTREE_ITER_INTENT);
ret = bch2_btree_iter_traverse(iter);
BUG_ON(ret);
if (ret) {
bch_err(c, "lookup error in test_delete: %i", ret);
goto err;
}
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
bch2_trans_update(&trans, iter, &k.k_i, 0));
BUG_ON(ret);
if (ret) {
bch_err(c, "update error in test_delete: %i", ret);
goto err;
}
pr_info("deleting once");
ret = bch2_btree_delete_at(&trans, iter, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "delete error (first) in test_delete: %i", ret);
goto err;
}
pr_info("deleting twice");
ret = bch2_btree_delete_at(&trans, iter, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "delete error (second) in test_delete: %i", ret);
goto err;
}
err:
bch2_trans_exit(&trans);
return ret;
}
static void test_delete_written(struct bch_fs *c, u64 nr)
static int test_delete_written(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
@ -73,27 +86,37 @@ static void test_delete_written(struct bch_fs *c, u64 nr)
BTREE_ITER_INTENT);
ret = bch2_btree_iter_traverse(iter);
BUG_ON(ret);
if (ret) {
bch_err(c, "lookup error in test_delete_written: %i", ret);
goto err;
}
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
bch2_trans_update(&trans, iter, &k.k_i, 0));
BUG_ON(ret);
if (ret) {
bch_err(c, "update error in test_delete_written: %i", ret);
goto err;
}
bch2_journal_flush_all_pins(&c->journal);
ret = bch2_btree_delete_at(&trans, iter, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "delete error in test_delete_written: %i", ret);
goto err;
}
err:
bch2_trans_exit(&trans);
return ret;
}
static void test_iterate(struct bch_fs *c, u64 nr)
static int test_iterate(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
u64 i;
int ret;
int ret = 0;
bch2_trans_init(&trans, c, 0, 0);
@ -109,7 +132,10 @@ static void test_iterate(struct bch_fs *c, u64 nr)
ret = bch2_btree_insert(c, BTREE_ID_XATTRS, &k.k_i,
NULL, NULL, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "insert error in test_iterate: %i", ret);
goto err;
}
}
pr_info("iterating forwards");
@ -132,17 +158,18 @@ static void test_iterate(struct bch_fs *c, u64 nr)
BUG_ON(k.k->p.offset != --i);
BUG_ON(i);
err:
bch2_trans_exit(&trans);
return ret;
}
static void test_iterate_extents(struct bch_fs *c, u64 nr)
static int test_iterate_extents(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
u64 i;
int ret;
int ret = 0;
bch2_trans_init(&trans, c, 0, 0);
@ -159,7 +186,10 @@ static void test_iterate_extents(struct bch_fs *c, u64 nr)
ret = bch2_btree_insert(c, BTREE_ID_EXTENTS, &k.k_i,
NULL, NULL, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "insert error in test_iterate_extents: %i", ret);
goto err;
}
}
pr_info("iterating forwards");
@ -182,17 +212,18 @@ static void test_iterate_extents(struct bch_fs *c, u64 nr)
}
BUG_ON(i);
err:
bch2_trans_exit(&trans);
return ret;
}
static void test_iterate_slots(struct bch_fs *c, u64 nr)
static int test_iterate_slots(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
u64 i;
int ret;
int ret = 0;
bch2_trans_init(&trans, c, 0, 0);
@ -208,7 +239,10 @@ static void test_iterate_slots(struct bch_fs *c, u64 nr)
ret = bch2_btree_insert(c, BTREE_ID_XATTRS, &k.k_i,
NULL, NULL, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "insert error in test_iterate_slots: %i", ret);
goto err;
}
}
pr_info("iterating forwards");
@ -240,17 +274,18 @@ static void test_iterate_slots(struct bch_fs *c, u64 nr)
if (i == nr * 2)
break;
}
err:
bch2_trans_exit(&trans);
return ret;
}
static void test_iterate_slots_extents(struct bch_fs *c, u64 nr)
static int test_iterate_slots_extents(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
u64 i;
int ret;
int ret = 0;
bch2_trans_init(&trans, c, 0, 0);
@ -267,7 +302,10 @@ static void test_iterate_slots_extents(struct bch_fs *c, u64 nr)
ret = bch2_btree_insert(c, BTREE_ID_EXTENTS, &k.k_i,
NULL, NULL, 0);
BUG_ON(ret);
if (ret) {
bch_err(c, "insert error in test_iterate_slots_extents: %i", ret);
goto err;
}
}
pr_info("iterating forwards");
@ -299,15 +337,16 @@ static void test_iterate_slots_extents(struct bch_fs *c, u64 nr)
if (i == nr)
break;
}
err:
bch2_trans_exit(&trans);
return 0;
}
/*
* XXX: we really want to make sure we've got a btree with depth > 0 for these
* tests
*/
static void test_peek_end(struct bch_fs *c, u64 nr)
static int test_peek_end(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
@ -324,9 +363,10 @@ static void test_peek_end(struct bch_fs *c, u64 nr)
BUG_ON(k.k);
bch2_trans_exit(&trans);
return 0;
}
static void test_peek_end_extents(struct bch_fs *c, u64 nr)
static int test_peek_end_extents(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
@ -343,14 +383,15 @@ static void test_peek_end_extents(struct bch_fs *c, u64 nr)
BUG_ON(k.k);
bch2_trans_exit(&trans);
return 0;
}
/* extent unit tests */
u64 test_version;
static void insert_test_extent(struct bch_fs *c,
u64 start, u64 end)
static int insert_test_extent(struct bch_fs *c,
u64 start, u64 end)
{
struct bkey_i_cookie k;
int ret;
@ -364,42 +405,47 @@ static void insert_test_extent(struct bch_fs *c,
ret = bch2_btree_insert(c, BTREE_ID_EXTENTS, &k.k_i,
NULL, NULL, 0);
BUG_ON(ret);
if (ret)
bch_err(c, "insert error in insert_test_extent: %i", ret);
return ret;
}
static void __test_extent_overwrite(struct bch_fs *c,
static int __test_extent_overwrite(struct bch_fs *c,
u64 e1_start, u64 e1_end,
u64 e2_start, u64 e2_end)
{
insert_test_extent(c, e1_start, e1_end);
insert_test_extent(c, e2_start, e2_end);
int ret;
ret = insert_test_extent(c, e1_start, e1_end) ?:
insert_test_extent(c, e2_start, e2_end);
delete_test_keys(c);
return ret;
}
static void test_extent_overwrite_front(struct bch_fs *c, u64 nr)
static int test_extent_overwrite_front(struct bch_fs *c, u64 nr)
{
__test_extent_overwrite(c, 0, 64, 0, 32);
__test_extent_overwrite(c, 8, 64, 0, 32);
return __test_extent_overwrite(c, 0, 64, 0, 32) ?:
__test_extent_overwrite(c, 8, 64, 0, 32);
}
static void test_extent_overwrite_back(struct bch_fs *c, u64 nr)
static int test_extent_overwrite_back(struct bch_fs *c, u64 nr)
{
__test_extent_overwrite(c, 0, 64, 32, 64);
__test_extent_overwrite(c, 0, 64, 32, 72);
return __test_extent_overwrite(c, 0, 64, 32, 64) ?:
__test_extent_overwrite(c, 0, 64, 32, 72);
}
static void test_extent_overwrite_middle(struct bch_fs *c, u64 nr)
static int test_extent_overwrite_middle(struct bch_fs *c, u64 nr)
{
__test_extent_overwrite(c, 0, 64, 32, 40);
return __test_extent_overwrite(c, 0, 64, 32, 40);
}
static void test_extent_overwrite_all(struct bch_fs *c, u64 nr)
static int test_extent_overwrite_all(struct bch_fs *c, u64 nr)
{
__test_extent_overwrite(c, 32, 64, 0, 64);
__test_extent_overwrite(c, 32, 64, 0, 128);
__test_extent_overwrite(c, 32, 64, 32, 64);
__test_extent_overwrite(c, 32, 64, 32, 128);
return __test_extent_overwrite(c, 32, 64, 0, 64) ?:
__test_extent_overwrite(c, 32, 64, 0, 128) ?:
__test_extent_overwrite(c, 32, 64, 32, 64) ?:
__test_extent_overwrite(c, 32, 64, 32, 128);
}
/* perf tests */
@ -415,11 +461,11 @@ static u64 test_rand(void)
return v;
}
static void rand_insert(struct bch_fs *c, u64 nr)
static int rand_insert(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct bkey_i_cookie k;
int ret;
int ret = 0;
u64 i;
bch2_trans_init(&trans, c, 0, 0);
@ -430,48 +476,63 @@ static void rand_insert(struct bch_fs *c, u64 nr)
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
__bch2_btree_insert(&trans, BTREE_ID_XATTRS, &k.k_i));
BUG_ON(ret);
if (ret) {
bch_err(c, "error in rand_insert: %i", ret);
break;
}
}
bch2_trans_exit(&trans);
return ret;
}
static void rand_lookup(struct bch_fs *c, u64 nr)
static int rand_lookup(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
int ret = 0;
u64 i;
bch2_trans_init(&trans, c, 0, 0);
iter = bch2_trans_get_iter(&trans, BTREE_ID_XATTRS, POS_MIN, 0);
for (i = 0; i < nr; i++) {
iter = bch2_trans_get_iter(&trans, BTREE_ID_XATTRS,
POS(0, test_rand()), 0);
bch2_btree_iter_set_pos(iter, POS(0, test_rand()));
k = bch2_btree_iter_peek(iter);
bch2_trans_iter_free(&trans, iter);
ret = bkey_err(k);
if (ret) {
bch_err(c, "error in rand_lookup: %i", ret);
break;
}
}
bch2_trans_iter_free(&trans, iter);
bch2_trans_exit(&trans);
return ret;
}
static void rand_mixed(struct bch_fs *c, u64 nr)
static int rand_mixed(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
int ret;
int ret = 0;
u64 i;
bch2_trans_init(&trans, c, 0, 0);
iter = bch2_trans_get_iter(&trans, BTREE_ID_XATTRS, POS_MIN, 0);
for (i = 0; i < nr; i++) {
iter = bch2_trans_get_iter(&trans, BTREE_ID_XATTRS,
POS(0, test_rand()), 0);
bch2_btree_iter_set_pos(iter, POS(0, test_rand()));
k = bch2_btree_iter_peek(iter);
ret = bkey_err(k);
if (ret) {
bch_err(c, "lookup error in rand_mixed: %i", ret);
break;
}
if (!(i & 3) && k.k) {
struct bkey_i_cookie k;
@ -481,14 +542,16 @@ static void rand_mixed(struct bch_fs *c, u64 nr)
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
bch2_trans_update(&trans, iter, &k.k_i, 0));
BUG_ON(ret);
if (ret) {
bch_err(c, "update error in rand_mixed: %i", ret);
break;
}
}
bch2_trans_iter_free(&trans, iter);
}
bch2_trans_iter_free(&trans, iter);
bch2_trans_exit(&trans);
return ret;
}
static int __do_delete(struct btree_trans *trans, struct bpos pos)
@ -518,10 +581,10 @@ err:
return ret;
}
static void rand_delete(struct bch_fs *c, u64 nr)
static int rand_delete(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
int ret;
int ret = 0;
u64 i;
bch2_trans_init(&trans, c, 0, 0);
@ -531,19 +594,23 @@ static void rand_delete(struct bch_fs *c, u64 nr)
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
__do_delete(&trans, pos));
BUG_ON(ret);
if (ret) {
bch_err(c, "error in rand_delete: %i", ret);
break;
}
}
bch2_trans_exit(&trans);
return ret;
}
static void seq_insert(struct bch_fs *c, u64 nr)
static int seq_insert(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
struct bkey_i_cookie insert;
int ret;
int ret = 0;
u64 i = 0;
bkey_cookie_init(&insert.k_i);
@ -556,35 +623,39 @@ static void seq_insert(struct bch_fs *c, u64 nr)
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
bch2_trans_update(&trans, iter, &insert.k_i, 0));
BUG_ON(ret);
if (ret) {
bch_err(c, "error in seq_insert: %i", ret);
break;
}
if (++i == nr)
break;
}
bch2_trans_exit(&trans);
return ret;
}
static void seq_lookup(struct bch_fs *c, u64 nr)
static int seq_lookup(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
int ret;
int ret = 0;
bch2_trans_init(&trans, c, 0, 0);
for_each_btree_key(&trans, iter, BTREE_ID_XATTRS, POS_MIN, 0, k, ret)
;
bch2_trans_exit(&trans);
return ret;
}
static void seq_overwrite(struct bch_fs *c, u64 nr)
static int seq_overwrite(struct bch_fs *c, u64 nr)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
int ret;
int ret = 0;
bch2_trans_init(&trans, c, 0, 0);
@ -596,23 +667,28 @@ static void seq_overwrite(struct bch_fs *c, u64 nr)
ret = __bch2_trans_do(&trans, NULL, NULL, 0,
bch2_trans_update(&trans, iter, &u.k_i, 0));
BUG_ON(ret);
if (ret) {
bch_err(c, "error in seq_overwrite: %i", ret);
break;
}
}
bch2_trans_exit(&trans);
return ret;
}
static void seq_delete(struct bch_fs *c, u64 nr)
static int seq_delete(struct bch_fs *c, u64 nr)
{
int ret;
ret = bch2_btree_delete_range(c, BTREE_ID_XATTRS,
POS(0, 0), POS(0, U64_MAX),
NULL);
BUG_ON(ret);
if (ret)
bch_err(c, "error in seq_delete: %i", ret);
return ret;
}
typedef void (*perf_test_fn)(struct bch_fs *, u64);
typedef int (*perf_test_fn)(struct bch_fs *, u64);
struct test_job {
struct bch_fs *c;
@ -628,11 +704,13 @@ struct test_job {
u64 start;
u64 finish;
int ret;
};
static int btree_perf_test_thread(void *data)
{
struct test_job *j = data;
int ret;
if (atomic_dec_and_test(&j->ready)) {
wake_up(&j->ready_wait);
@ -641,7 +719,9 @@ static int btree_perf_test_thread(void *data)
wait_event(j->ready_wait, !atomic_read(&j->ready));
}
j->fn(j->c, j->nr / j->nr_threads);
ret = j->fn(j->c, j->nr / j->nr_threads);
if (ret)
j->ret = ret;
if (atomic_dec_and_test(&j->done)) {
j->finish = sched_clock();
@ -651,8 +731,8 @@ static int btree_perf_test_thread(void *data)
return 0;
}
void bch2_btree_perf_test(struct bch_fs *c, const char *testname,
u64 nr, unsigned nr_threads)
int bch2_btree_perf_test(struct bch_fs *c, const char *testname,
u64 nr, unsigned nr_threads)
{
struct test_job j = { .c = c, .nr = nr, .nr_threads = nr_threads };
char name_buf[20], nr_buf[20], per_sec_buf[20];
@ -695,7 +775,7 @@ void bch2_btree_perf_test(struct bch_fs *c, const char *testname,
if (!j.fn) {
pr_err("unknown test %s", testname);
return;
return -EINVAL;
}
//pr_info("running test %s:", testname);
@ -720,6 +800,7 @@ void bch2_btree_perf_test(struct bch_fs *c, const char *testname,
time / NSEC_PER_SEC,
time * nr_threads / nr,
per_sec_buf);
return j.ret;
}
#endif /* CONFIG_BCACHEFS_TESTS */

2
fs/bcachefs/tests.h
View File

@ -6,7 +6,7 @@ struct bch_fs;
#ifdef CONFIG_BCACHEFS_TESTS
void bch2_btree_perf_test(struct bch_fs *, const char *, u64, unsigned);
int bch2_btree_perf_test(struct bch_fs *, const char *, u64, unsigned);
#else