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-rw-r--r--lib/test_objagg.c836
1 files changed, 836 insertions, 0 deletions
diff --git a/lib/test_objagg.c b/lib/test_objagg.c
new file mode 100644
index 000000000000..ab57144bb0cd
--- /dev/null
+++ b/lib/test_objagg.c
@@ -0,0 +1,836 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/objagg.h>
+
+struct tokey {
+ unsigned int id;
+};
+
+#define NUM_KEYS 32
+
+static int key_id_index(unsigned int key_id)
+{
+ if (key_id >= NUM_KEYS) {
+ WARN_ON(1);
+ return 0;
+ }
+ return key_id;
+}
+
+#define BUF_LEN 128
+
+struct world {
+ unsigned int root_count;
+ unsigned int delta_count;
+ char next_root_buf[BUF_LEN];
+ struct objagg_obj *objagg_objs[NUM_KEYS];
+ unsigned int key_refs[NUM_KEYS];
+};
+
+struct root {
+ struct tokey key;
+ char buf[BUF_LEN];
+};
+
+struct delta {
+ unsigned int key_id_diff;
+};
+
+static struct objagg_obj *world_obj_get(struct world *world,
+ struct objagg *objagg,
+ unsigned int key_id)
+{
+ struct objagg_obj *objagg_obj;
+ struct tokey key;
+ int err;
+
+ key.id = key_id;
+ objagg_obj = objagg_obj_get(objagg, &key);
+ if (IS_ERR(objagg_obj)) {
+ pr_err("Key %u: Failed to get object.\n", key_id);
+ return objagg_obj;
+ }
+ if (!world->key_refs[key_id_index(key_id)]) {
+ world->objagg_objs[key_id_index(key_id)] = objagg_obj;
+ } else if (world->objagg_objs[key_id_index(key_id)] != objagg_obj) {
+ pr_err("Key %u: God another object for the same key.\n",
+ key_id);
+ err = -EINVAL;
+ goto err_key_id_check;
+ }
+ world->key_refs[key_id_index(key_id)]++;
+ return objagg_obj;
+
+err_key_id_check:
+ objagg_obj_put(objagg, objagg_obj);
+ return ERR_PTR(err);
+}
+
+static void world_obj_put(struct world *world, struct objagg *objagg,
+ unsigned int key_id)
+{
+ struct objagg_obj *objagg_obj;
+
+ if (!world->key_refs[key_id_index(key_id)])
+ return;
+ objagg_obj = world->objagg_objs[key_id_index(key_id)];
+ objagg_obj_put(objagg, objagg_obj);
+ world->key_refs[key_id_index(key_id)]--;
+}
+
+#define MAX_KEY_ID_DIFF 5
+
+static void *delta_create(void *priv, void *parent_obj, void *obj)
+{
+ struct tokey *parent_key = parent_obj;
+ struct world *world = priv;
+ struct tokey *key = obj;
+ int diff = key->id - parent_key->id;
+ struct delta *delta;
+
+ if (diff < 0 || diff > MAX_KEY_ID_DIFF)
+ return ERR_PTR(-EINVAL);
+
+ delta = kzalloc(sizeof(*delta), GFP_KERNEL);
+ if (!delta)
+ return ERR_PTR(-ENOMEM);
+ delta->key_id_diff = diff;
+ world->delta_count++;
+ return delta;
+}
+
+static void delta_destroy(void *priv, void *delta_priv)
+{
+ struct delta *delta = delta_priv;
+ struct world *world = priv;
+
+ world->delta_count--;
+ kfree(delta);
+}
+
+static void *root_create(void *priv, void *obj)
+{
+ struct world *world = priv;
+ struct tokey *key = obj;
+ struct root *root;
+
+ root = kzalloc(sizeof(*root), GFP_KERNEL);
+ if (!root)
+ return ERR_PTR(-ENOMEM);
+ memcpy(&root->key, key, sizeof(root->key));
+ memcpy(root->buf, world->next_root_buf, sizeof(root->buf));
+ world->root_count++;
+ return root;
+}
+
+static void root_destroy(void *priv, void *root_priv)
+{
+ struct root *root = root_priv;
+ struct world *world = priv;
+
+ world->root_count--;
+ kfree(root);
+}
+
+static int test_nodelta_obj_get(struct world *world, struct objagg *objagg,
+ unsigned int key_id, bool should_create_root)
+{
+ unsigned int orig_root_count = world->root_count;
+ struct objagg_obj *objagg_obj;
+ const struct root *root;
+ int err;
+
+ if (should_create_root)
+ prandom_bytes(world->next_root_buf,
+ sizeof(world->next_root_buf));
+
+ objagg_obj = world_obj_get(world, objagg, key_id);
+ if (IS_ERR(objagg_obj)) {
+ pr_err("Key %u: Failed to get object.\n", key_id);
+ return PTR_ERR(objagg_obj);
+ }
+ if (should_create_root) {
+ if (world->root_count != orig_root_count + 1) {
+ pr_err("Key %u: Root was not created\n", key_id);
+ err = -EINVAL;
+ goto err_check_root_count;
+ }
+ } else {
+ if (world->root_count != orig_root_count) {
+ pr_err("Key %u: Root was incorrectly created\n",
+ key_id);
+ err = -EINVAL;
+ goto err_check_root_count;
+ }
+ }
+ root = objagg_obj_root_priv(objagg_obj);
+ if (root->key.id != key_id) {
+ pr_err("Key %u: Root has unexpected key id\n", key_id);
+ err = -EINVAL;
+ goto err_check_key_id;
+ }
+ if (should_create_root &&
+ memcmp(world->next_root_buf, root->buf, sizeof(root->buf))) {
+ pr_err("Key %u: Buffer does not match the expected content\n",
+ key_id);
+ err = -EINVAL;
+ goto err_check_buf;
+ }
+ return 0;
+
+err_check_buf:
+err_check_key_id:
+err_check_root_count:
+ objagg_obj_put(objagg, objagg_obj);
+ return err;
+}
+
+static int test_nodelta_obj_put(struct world *world, struct objagg *objagg,
+ unsigned int key_id, bool should_destroy_root)
+{
+ unsigned int orig_root_count = world->root_count;
+
+ world_obj_put(world, objagg, key_id);
+
+ if (should_destroy_root) {
+ if (world->root_count != orig_root_count - 1) {
+ pr_err("Key %u: Root was not destroyed\n", key_id);
+ return -EINVAL;
+ }
+ } else {
+ if (world->root_count != orig_root_count) {
+ pr_err("Key %u: Root was incorrectly destroyed\n",
+ key_id);
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static int check_stats_zero(struct objagg *objagg)
+{
+ const struct objagg_stats *stats;
+ int err = 0;
+
+ stats = objagg_stats_get(objagg);
+ if (IS_ERR(stats))
+ return PTR_ERR(stats);
+
+ if (stats->stats_info_count != 0) {
+ pr_err("Stats: Object count is not zero while it should be\n");
+ err = -EINVAL;
+ }
+
+ objagg_stats_put(stats);
+ return err;
+}
+
+static int check_stats_nodelta(struct objagg *objagg)
+{
+ const struct objagg_stats *stats;
+ int i;
+ int err;
+
+ stats = objagg_stats_get(objagg);
+ if (IS_ERR(stats))
+ return PTR_ERR(stats);
+
+ if (stats->stats_info_count != NUM_KEYS) {
+ pr_err("Stats: Unexpected object count (%u expected, %u returned)\n",
+ NUM_KEYS, stats->stats_info_count);
+ err = -EINVAL;
+ goto stats_put;
+ }
+
+ for (i = 0; i < stats->stats_info_count; i++) {
+ if (stats->stats_info[i].stats.user_count != 2) {
+ pr_err("Stats: incorrect user count\n");
+ err = -EINVAL;
+ goto stats_put;
+ }
+ if (stats->stats_info[i].stats.delta_user_count != 2) {
+ pr_err("Stats: incorrect delta user count\n");
+ err = -EINVAL;
+ goto stats_put;
+ }
+ }
+ err = 0;
+
+stats_put:
+ objagg_stats_put(stats);
+ return err;
+}
+
+static void *delta_create_dummy(void *priv, void *parent_obj, void *obj)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
+static void delta_destroy_dummy(void *priv, void *delta_priv)
+{
+}
+
+static const struct objagg_ops nodelta_ops = {
+ .obj_size = sizeof(struct tokey),
+ .delta_create = delta_create_dummy,
+ .delta_destroy = delta_destroy_dummy,
+ .root_create = root_create,
+ .root_destroy = root_destroy,
+};
+
+static int test_nodelta(void)
+{
+ struct world world = {};
+ struct objagg *objagg;
+ int i;
+ int err;
+
+ objagg = objagg_create(&nodelta_ops, &world);
+ if (IS_ERR(objagg))
+ return PTR_ERR(objagg);
+
+ err = check_stats_zero(objagg);
+ if (err)
+ goto err_stats_first_zero;
+
+ /* First round of gets, the root objects should be created */
+ for (i = 0; i < NUM_KEYS; i++) {
+ err = test_nodelta_obj_get(&world, objagg, i, true);
+ if (err)
+ goto err_obj_first_get;
+ }
+
+ /* Do the second round of gets, all roots are already created,
+ * make sure that no new root is created
+ */
+ for (i = 0; i < NUM_KEYS; i++) {
+ err = test_nodelta_obj_get(&world, objagg, i, false);
+ if (err)
+ goto err_obj_second_get;
+ }
+
+ err = check_stats_nodelta(objagg);
+ if (err)
+ goto err_stats_nodelta;
+
+ for (i = NUM_KEYS - 1; i >= 0; i--) {
+ err = test_nodelta_obj_put(&world, objagg, i, false);
+ if (err)
+ goto err_obj_first_put;
+ }
+ for (i = NUM_KEYS - 1; i >= 0; i--) {
+ err = test_nodelta_obj_put(&world, objagg, i, true);
+ if (err)
+ goto err_obj_second_put;
+ }
+
+ err = check_stats_zero(objagg);
+ if (err)
+ goto err_stats_second_zero;
+
+ objagg_destroy(objagg);
+ return 0;
+
+err_stats_nodelta:
+err_obj_first_put:
+err_obj_second_get:
+ for (i--; i >= 0; i--)
+ world_obj_put(&world, objagg, i);
+
+ i = NUM_KEYS;
+err_obj_first_get:
+err_obj_second_put:
+ for (i--; i >= 0; i--)
+ world_obj_put(&world, objagg, i);
+err_stats_first_zero:
+err_stats_second_zero:
+ objagg_destroy(objagg);
+ return err;
+}
+
+static const struct objagg_ops delta_ops = {
+ .obj_size = sizeof(struct tokey),
+ .delta_create = delta_create,
+ .delta_destroy = delta_destroy,
+ .root_create = root_create,
+ .root_destroy = root_destroy,
+};
+
+enum action {
+ ACTION_GET,
+ ACTION_PUT,
+};
+
+enum expect_delta {
+ EXPECT_DELTA_SAME,
+ EXPECT_DELTA_INC,
+ EXPECT_DELTA_DEC,
+};
+
+enum expect_root {
+ EXPECT_ROOT_SAME,
+ EXPECT_ROOT_INC,
+ EXPECT_ROOT_DEC,
+};
+
+struct expect_stats_info {
+ struct objagg_obj_stats stats;
+ bool is_root;
+ unsigned int key_id;
+};
+
+struct expect_stats {
+ unsigned int info_count;
+ struct expect_stats_info info[NUM_KEYS];
+};
+
+struct action_item {
+ unsigned int key_id;
+ enum action action;
+ enum expect_delta expect_delta;
+ enum expect_root expect_root;
+ struct expect_stats expect_stats;
+};
+
+#define EXPECT_STATS(count, ...) \
+{ \
+ .info_count = count, \
+ .info = { __VA_ARGS__ } \
+}
+
+#define ROOT(key_id, user_count, delta_user_count) \
+ {{user_count, delta_user_count}, true, key_id}
+
+#define DELTA(key_id, user_count) \
+ {{user_count, user_count}, false, key_id}
+
+static const struct action_item action_items[] = {
+ {
+ 1, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_INC,
+ EXPECT_STATS(1, ROOT(1, 1, 1)),
+ }, /* r: 1 d: */
+ {
+ 7, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_INC,
+ EXPECT_STATS(2, ROOT(1, 1, 1), ROOT(7, 1, 1)),
+ }, /* r: 1, 7 d: */
+ {
+ 3, ACTION_GET, EXPECT_DELTA_INC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(3, ROOT(1, 1, 2), ROOT(7, 1, 1),
+ DELTA(3, 1)),
+ }, /* r: 1, 7 d: 3^1 */
+ {
+ 5, ACTION_GET, EXPECT_DELTA_INC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(4, ROOT(1, 1, 3), ROOT(7, 1, 1),
+ DELTA(3, 1), DELTA(5, 1)),
+ }, /* r: 1, 7 d: 3^1, 5^1 */
+ {
+ 3, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(4, ROOT(1, 1, 4), ROOT(7, 1, 1),
+ DELTA(3, 2), DELTA(5, 1)),
+ }, /* r: 1, 7 d: 3^1, 3^1, 5^1 */
+ {
+ 1, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(4, ROOT(1, 2, 5), ROOT(7, 1, 1),
+ DELTA(3, 2), DELTA(5, 1)),
+ }, /* r: 1, 1, 7 d: 3^1, 3^1, 5^1 */
+ {
+ 30, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_INC,
+ EXPECT_STATS(5, ROOT(1, 2, 5), ROOT(7, 1, 1), ROOT(30, 1, 1),
+ DELTA(3, 2), DELTA(5, 1)),
+ }, /* r: 1, 1, 7, 30 d: 3^1, 3^1, 5^1 */
+ {
+ 8, ACTION_GET, EXPECT_DELTA_INC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(6, ROOT(1, 2, 5), ROOT(7, 1, 2), ROOT(30, 1, 1),
+ DELTA(3, 2), DELTA(5, 1), DELTA(8, 1)),
+ }, /* r: 1, 1, 7, 30 d: 3^1, 3^1, 5^1, 8^7 */
+ {
+ 8, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(6, ROOT(1, 2, 5), ROOT(7, 1, 3), ROOT(30, 1, 1),
+ DELTA(3, 2), DELTA(8, 2), DELTA(5, 1)),
+ }, /* r: 1, 1, 7, 30 d: 3^1, 3^1, 5^1, 8^7, 8^7 */
+ {
+ 3, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(6, ROOT(1, 2, 4), ROOT(7, 1, 3), ROOT(30, 1, 1),
+ DELTA(8, 2), DELTA(3, 1), DELTA(5, 1)),
+ }, /* r: 1, 1, 7, 30 d: 3^1, 5^1, 8^7, 8^7 */
+ {
+ 3, ACTION_PUT, EXPECT_DELTA_DEC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(1, 2, 3), ROOT(7, 1, 3), ROOT(30, 1, 1),
+ DELTA(8, 2), DELTA(5, 1)),
+ }, /* r: 1, 1, 7, 30 d: 5^1, 8^7, 8^7 */
+ {
+ 1, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(7, 1, 3), ROOT(1, 1, 2), ROOT(30, 1, 1),
+ DELTA(8, 2), DELTA(5, 1)),
+ }, /* r: 1, 7, 30 d: 5^1, 8^7, 8^7 */
+ {
+ 1, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(7, 1, 3), ROOT(30, 1, 1), ROOT(1, 0, 1),
+ DELTA(8, 2), DELTA(5, 1)),
+ }, /* r: 7, 30 d: 5^1, 8^7, 8^7 */
+ {
+ 5, ACTION_PUT, EXPECT_DELTA_DEC, EXPECT_ROOT_DEC,
+ EXPECT_STATS(3, ROOT(7, 1, 3), ROOT(30, 1, 1),
+ DELTA(8, 2)),
+ }, /* r: 7, 30 d: 8^7, 8^7 */
+ {
+ 5, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_INC,
+ EXPECT_STATS(4, ROOT(7, 1, 3), ROOT(30, 1, 1), ROOT(5, 1, 1),
+ DELTA(8, 2)),
+ }, /* r: 7, 30, 5 d: 8^7, 8^7 */
+ {
+ 6, ACTION_GET, EXPECT_DELTA_INC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(7, 1, 3), ROOT(5, 1, 2), ROOT(30, 1, 1),
+ DELTA(8, 2), DELTA(6, 1)),
+ }, /* r: 7, 30, 5 d: 8^7, 8^7, 6^5 */
+ {
+ 8, ACTION_GET, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(7, 1, 4), ROOT(5, 1, 2), ROOT(30, 1, 1),
+ DELTA(8, 3), DELTA(6, 1)),
+ }, /* r: 7, 30, 5 d: 8^7, 8^7, 8^7, 6^5 */
+ {
+ 8, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(7, 1, 3), ROOT(5, 1, 2), ROOT(30, 1, 1),
+ DELTA(8, 2), DELTA(6, 1)),
+ }, /* r: 7, 30, 5 d: 8^7, 8^7, 6^5 */
+ {
+ 8, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(7, 1, 2), ROOT(5, 1, 2), ROOT(30, 1, 1),
+ DELTA(8, 1), DELTA(6, 1)),
+ }, /* r: 7, 30, 5 d: 8^7, 6^5 */
+ {
+ 8, ACTION_PUT, EXPECT_DELTA_DEC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(4, ROOT(5, 1, 2), ROOT(7, 1, 1), ROOT(30, 1, 1),
+ DELTA(6, 1)),
+ }, /* r: 7, 30, 5 d: 6^5 */
+ {
+ 8, ACTION_GET, EXPECT_DELTA_INC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(5, ROOT(5, 1, 3), ROOT(7, 1, 1), ROOT(30, 1, 1),
+ DELTA(6, 1), DELTA(8, 1)),
+ }, /* r: 7, 30, 5 d: 6^5, 8^5 */
+ {
+ 7, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_DEC,
+ EXPECT_STATS(4, ROOT(5, 1, 3), ROOT(30, 1, 1),
+ DELTA(6, 1), DELTA(8, 1)),
+ }, /* r: 30, 5 d: 6^5, 8^5 */
+ {
+ 30, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_DEC,
+ EXPECT_STATS(3, ROOT(5, 1, 3),
+ DELTA(6, 1), DELTA(8, 1)),
+ }, /* r: 5 d: 6^5, 8^5 */
+ {
+ 5, ACTION_PUT, EXPECT_DELTA_SAME, EXPECT_ROOT_SAME,
+ EXPECT_STATS(3, ROOT(5, 0, 2),
+ DELTA(6, 1), DELTA(8, 1)),
+ }, /* r: d: 6^5, 8^5 */
+ {
+ 6, ACTION_PUT, EXPECT_DELTA_DEC, EXPECT_ROOT_SAME,
+ EXPECT_STATS(2, ROOT(5, 0, 1),
+ DELTA(8, 1)),
+ }, /* r: d: 6^5 */
+ {
+ 8, ACTION_PUT, EXPECT_DELTA_DEC, EXPECT_ROOT_DEC,
+ EXPECT_STATS(0, ),
+ }, /* r: d: */
+};
+
+static int check_expect(struct world *world,
+ const struct action_item *action_item,
+ unsigned int orig_delta_count,
+ unsigned int orig_root_count)
+{
+ unsigned int key_id = action_item->key_id;
+
+ switch (action_item->expect_delta) {
+ case EXPECT_DELTA_SAME:
+ if (orig_delta_count != world->delta_count) {
+ pr_err("Key %u: Delta count changed while expected to remain the same.\n",
+ key_id);
+ return -EINVAL;
+ }
+ break;
+ case EXPECT_DELTA_INC:
+ if (WARN_ON(action_item->action == ACTION_PUT))
+ return -EINVAL;
+ if (orig_delta_count + 1 != world->delta_count) {
+ pr_err("Key %u: Delta count was not incremented.\n",
+ key_id);
+ return -EINVAL;
+ }
+ break;
+ case EXPECT_DELTA_DEC:
+ if (WARN_ON(action_item->action == ACTION_GET))
+ return -EINVAL;
+ if (orig_delta_count - 1 != world->delta_count) {
+ pr_err("Key %u: Delta count was not decremented.\n",
+ key_id);
+ return -EINVAL;
+ }
+ break;
+ }
+
+ switch (action_item->expect_root) {
+ case EXPECT_ROOT_SAME:
+ if (orig_root_count != world->root_count) {
+ pr_err("Key %u: Root count changed while expected to remain the same.\n",
+ key_id);
+ return -EINVAL;
+ }
+ break;
+ case EXPECT_ROOT_INC:
+ if (WARN_ON(action_item->action == ACTION_PUT))
+ return -EINVAL;
+ if (orig_root_count + 1 != world->root_count) {
+ pr_err("Key %u: Root count was not incremented.\n",
+ key_id);
+ return -EINVAL;
+ }
+ break;
+ case EXPECT_ROOT_DEC:
+ if (WARN_ON(action_item->action == ACTION_GET))
+ return -EINVAL;
+ if (orig_root_count - 1 != world->root_count) {
+ pr_err("Key %u: Root count was not decremented.\n",
+ key_id);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static unsigned int obj_to_key_id(struct objagg_obj *objagg_obj)
+{
+ const struct tokey *root_key;
+ const struct delta *delta;
+ unsigned int key_id;
+
+ root_key = objagg_obj_root_priv(objagg_obj);
+ key_id = root_key->id;
+ delta = objagg_obj_delta_priv(objagg_obj);
+ if (delta)
+ key_id += delta->key_id_diff;
+ return key_id;
+}
+
+static int
+check_expect_stats_nums(const struct objagg_obj_stats_info *stats_info,
+ const struct expect_stats_info *expect_stats_info,
+ const char **errmsg)
+{
+ if (stats_info->is_root != expect_stats_info->is_root) {
+ if (errmsg)
+ *errmsg = "Incorrect root/delta indication";
+ return -EINVAL;
+ }
+ if (stats_info->stats.user_count !=
+ expect_stats_info->stats.user_count) {
+ if (errmsg)
+ *errmsg = "Incorrect user count";
+ return -EINVAL;
+ }
+ if (stats_info->stats.delta_user_count !=
+ expect_stats_info->stats.delta_user_count) {
+ if (errmsg)
+ *errmsg = "Incorrect delta user count";
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int
+check_expect_stats_key_id(const struct objagg_obj_stats_info *stats_info,
+ const struct expect_stats_info *expect_stats_info,
+ const char **errmsg)
+{
+ if (obj_to_key_id(stats_info->objagg_obj) !=
+ expect_stats_info->key_id) {
+ if (errmsg)
+ *errmsg = "incorrect key id";
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int check_expect_stats_neigh(const struct objagg_stats *stats,
+ const struct expect_stats *expect_stats,
+ int pos)
+{
+ int i;
+ int err;
+
+ for (i = pos - 1; i >= 0; i--) {
+ err = check_expect_stats_nums(&stats->stats_info[i],
+ &expect_stats->info[pos], NULL);
+ if (err)
+ break;
+ err = check_expect_stats_key_id(&stats->stats_info[i],
+ &expect_stats->info[pos], NULL);
+ if (!err)
+ return 0;
+ }
+ for (i = pos + 1; i < stats->stats_info_count; i++) {
+ err = check_expect_stats_nums(&stats->stats_info[i],
+ &expect_stats->info[pos], NULL);
+ if (err)
+ break;
+ err = check_expect_stats_key_id(&stats->stats_info[i],
+ &expect_stats->info[pos], NULL);
+ if (!err)
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int __check_expect_stats(const struct objagg_stats *stats,
+ const struct expect_stats *expect_stats,
+ const char **errmsg)
+{
+ int i;
+ int err;
+
+ if (stats->stats_info_count != expect_stats->info_count) {
+ *errmsg = "Unexpected object count";
+ return -EINVAL;
+ }
+
+ for (i = 0; i < stats->stats_info_count; i++) {
+ err = check_expect_stats_nums(&stats->stats_info[i],
+ &expect_stats->info[i], errmsg);
+ if (err)
+ return err;
+ err = check_expect_stats_key_id(&stats->stats_info[i],
+ &expect_stats->info[i], errmsg);
+ if (err) {
+ /* It is possible that one of the neighbor stats with
+ * same numbers have the correct key id, so check it
+ */
+ err = check_expect_stats_neigh(stats, expect_stats, i);
+ if (err)
+ return err;
+ }
+ }
+ return 0;
+}
+
+static int check_expect_stats(struct objagg *objagg,
+ const struct expect_stats *expect_stats,
+ const char **errmsg)
+{
+ const struct objagg_stats *stats;
+ int err;
+
+ stats = objagg_stats_get(objagg);
+ if (IS_ERR(stats))
+ return PTR_ERR(stats);
+ err = __check_expect_stats(stats, expect_stats, errmsg);
+ objagg_stats_put(stats);
+ return err;
+}
+
+static int test_delta_action_item(struct world *world,
+ struct objagg *objagg,
+ const struct action_item *action_item,
+ bool inverse)
+{
+ unsigned int orig_delta_count = world->delta_count;
+ unsigned int orig_root_count = world->root_count;
+ unsigned int key_id = action_item->key_id;
+ enum action action = action_item->action;
+ struct objagg_obj *objagg_obj;
+ const char *errmsg;
+ int err;
+
+ if (inverse)
+ action = action == ACTION_GET ? ACTION_PUT : ACTION_GET;
+
+ switch (action) {
+ case ACTION_GET:
+ objagg_obj = world_obj_get(world, objagg, key_id);
+ if (IS_ERR(objagg_obj))
+ return PTR_ERR(objagg_obj);
+ break;
+ case ACTION_PUT:
+ world_obj_put(world, objagg, key_id);
+ break;
+ }
+
+ if (inverse)
+ return 0;
+ err = check_expect(world, action_item,
+ orig_delta_count, orig_root_count);
+ if (err)
+ goto errout;
+
+ errmsg = NULL;
+ err = check_expect_stats(objagg, &action_item->expect_stats, &errmsg);
+ if (err) {
+ pr_err("Key %u: Stats: %s\n", action_item->key_id, errmsg);
+ goto errout;
+ }
+
+ return 0;
+
+errout:
+ /* This can only happen when action is not inversed.
+ * So in case of an error, cleanup by doing inverse action.
+ */
+ test_delta_action_item(world, objagg, action_item, true);
+ return err;
+}
+
+static int test_delta(void)
+{
+ struct world world = {};
+ struct objagg *objagg;
+ int i;
+ int err;
+
+ objagg = objagg_create(&delta_ops, &world);
+ if (IS_ERR(objagg))
+ return PTR_ERR(objagg);
+
+ for (i = 0; i < ARRAY_SIZE(action_items); i++) {
+ err = test_delta_action_item(&world, objagg,
+ &action_items[i], false);
+ if (err)
+ goto err_do_action_item;
+ }
+
+ objagg_destroy(objagg);
+ return 0;
+
+err_do_action_item:
+ for (i--; i >= 0; i--)
+ test_delta_action_item(&world, objagg, &action_items[i], true);
+
+ objagg_destroy(objagg);
+ return err;
+}
+
+static int __init test_objagg_init(void)
+{
+ int err;
+
+ err = test_nodelta();
+ if (err)
+ return err;
+ return test_delta();
+}
+
+static void __exit test_objagg_exit(void)
+{
+}
+
+module_init(test_objagg_init);
+module_exit(test_objagg_exit);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
+MODULE_DESCRIPTION("Test module for objagg");
generated by cgit v1.2.3-70-g09d2 (git 2.51.1) at 2025-11-04 04:22:39 +0000