aboutsummaryrefslogtreecommitdiffstats
path: root/fs/btrfs/tests/extent-map-tests.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs/tests/extent-map-tests.c')
-rw-r--r--fs/btrfs/tests/extent-map-tests.c213
1 files changed, 150 insertions, 63 deletions
diff --git a/fs/btrfs/tests/extent-map-tests.c b/fs/btrfs/tests/extent-map-tests.c
index bf15d3a7f20e..87aeabe9d610 100644
--- a/fs/btrfs/tests/extent-map-tests.c
+++ b/fs/btrfs/tests/extent-map-tests.c
@@ -47,7 +47,7 @@ static void free_extent_map_tree(struct extent_map_tree *em_tree)
* ->add_extent_mapping(0, 16K)
* -> #handle -EEXIST
*/
-static void test_case_1(struct btrfs_fs_info *fs_info,
+static int test_case_1(struct btrfs_fs_info *fs_info,
struct extent_map_tree *em_tree)
{
struct extent_map *em;
@@ -56,9 +56,10 @@ static void test_case_1(struct btrfs_fs_info *fs_info,
int ret;
em = alloc_extent_map();
- if (!em)
- /* Skip the test on error. */
- return;
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ return -ENOMEM;
+ }
/* Add [0, 16K) */
em->start = 0;
@@ -66,25 +67,37 @@ static void test_case_1(struct btrfs_fs_info *fs_info,
em->block_start = 0;
em->block_len = SZ_16K;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [0, 16K)");
+ goto out;
+ }
free_extent_map(em);
/* Add [16K, 20K) following [0, 16K) */
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
em->start = SZ_16K;
em->len = SZ_4K;
em->block_start = SZ_32K; /* avoid merging */
em->block_len = SZ_4K;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [16K, 20K)");
+ goto out;
+ }
free_extent_map(em);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
/* Add [0, 8K), should return [0, 16K) instead. */
em->start = start;
@@ -92,19 +105,24 @@ static void test_case_1(struct btrfs_fs_info *fs_info,
em->block_start = start;
em->block_len = len;
ret = btrfs_add_extent_mapping(fs_info, em_tree, &em, em->start, em->len);
- if (ret)
+ if (ret) {
test_err("case1 [%llu %llu]: ret %d", start, start + len, ret);
+ goto out;
+ }
if (em &&
(em->start != 0 || extent_map_end(em) != SZ_16K ||
- em->block_start != 0 || em->block_len != SZ_16K))
+ em->block_start != 0 || em->block_len != SZ_16K)) {
test_err(
"case1 [%llu %llu]: ret %d return a wrong em (start %llu len %llu block_start %llu block_len %llu",
start, start + len, ret, em->start, em->len,
em->block_start, em->block_len);
+ ret = -EINVAL;
+ }
free_extent_map(em);
out:
- /* free memory */
free_extent_map_tree(em_tree);
+
+ return ret;
}
/*
@@ -113,16 +131,17 @@ out:
* Reading the inline ending up with EEXIST, ie. read an inline
* extent and discard page cache and read it again.
*/
-static void test_case_2(struct btrfs_fs_info *fs_info,
+static int test_case_2(struct btrfs_fs_info *fs_info,
struct extent_map_tree *em_tree)
{
struct extent_map *em;
int ret;
em = alloc_extent_map();
- if (!em)
- /* Skip the test on error. */
- return;
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ return -ENOMEM;
+ }
/* Add [0, 1K) */
em->start = 0;
@@ -130,25 +149,37 @@ static void test_case_2(struct btrfs_fs_info *fs_info,
em->block_start = EXTENT_MAP_INLINE;
em->block_len = (u64)-1;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [0, 1K)");
+ goto out;
+ }
free_extent_map(em);
- /* Add [4K, 4K) following [0, 1K) */
+ /* Add [4K, 8K) following [0, 1K) */
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
em->start = SZ_4K;
em->len = SZ_4K;
em->block_start = SZ_4K;
em->block_len = SZ_4K;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [4K, 8K)");
+ goto out;
+ }
free_extent_map(em);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
/* Add [0, 1K) */
em->start = 0;
@@ -156,22 +187,27 @@ static void test_case_2(struct btrfs_fs_info *fs_info,
em->block_start = EXTENT_MAP_INLINE;
em->block_len = (u64)-1;
ret = btrfs_add_extent_mapping(fs_info, em_tree, &em, em->start, em->len);
- if (ret)
+ if (ret) {
test_err("case2 [0 1K]: ret %d", ret);
+ goto out;
+ }
if (em &&
(em->start != 0 || extent_map_end(em) != SZ_1K ||
- em->block_start != EXTENT_MAP_INLINE || em->block_len != (u64)-1))
+ em->block_start != EXTENT_MAP_INLINE || em->block_len != (u64)-1)) {
test_err(
"case2 [0 1K]: ret %d return a wrong em (start %llu len %llu block_start %llu block_len %llu",
ret, em->start, em->len, em->block_start,
em->block_len);
+ ret = -EINVAL;
+ }
free_extent_map(em);
out:
- /* free memory */
free_extent_map_tree(em_tree);
+
+ return ret;
}
-static void __test_case_3(struct btrfs_fs_info *fs_info,
+static int __test_case_3(struct btrfs_fs_info *fs_info,
struct extent_map_tree *em_tree, u64 start)
{
struct extent_map *em;
@@ -179,9 +215,10 @@ static void __test_case_3(struct btrfs_fs_info *fs_info,
int ret;
em = alloc_extent_map();
- if (!em)
- /* Skip this test on error. */
- return;
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ return -ENOMEM;
+ }
/* Add [4K, 8K) */
em->start = SZ_4K;
@@ -189,12 +226,18 @@ static void __test_case_3(struct btrfs_fs_info *fs_info,
em->block_start = SZ_4K;
em->block_len = SZ_4K;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [4K, 8K)");
+ goto out;
+ }
free_extent_map(em);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
/* Add [0, 16K) */
em->start = 0;
@@ -202,24 +245,29 @@ static void __test_case_3(struct btrfs_fs_info *fs_info,
em->block_start = 0;
em->block_len = SZ_16K;
ret = btrfs_add_extent_mapping(fs_info, em_tree, &em, start, len);
- if (ret)
+ if (ret) {
test_err("case3 [0x%llx 0x%llx): ret %d",
start, start + len, ret);
+ goto out;
+ }
/*
* Since bytes within em are contiguous, em->block_start is identical to
* em->start.
*/
if (em &&
(start < em->start || start + len > extent_map_end(em) ||
- em->start != em->block_start || em->len != em->block_len))
+ em->start != em->block_start || em->len != em->block_len)) {
test_err(
"case3 [0x%llx 0x%llx): ret %d em (start 0x%llx len 0x%llx block_start 0x%llx block_len 0x%llx)",
start, start + len, ret, em->start, em->len,
em->block_start, em->block_len);
+ ret = -EINVAL;
+ }
free_extent_map(em);
out:
- /* free memory */
free_extent_map_tree(em_tree);
+
+ return ret;
}
/*
@@ -238,15 +286,23 @@ out:
* -> add_extent_mapping()
* -> add_extent_mapping()
*/
-static void test_case_3(struct btrfs_fs_info *fs_info,
+static int test_case_3(struct btrfs_fs_info *fs_info,
struct extent_map_tree *em_tree)
{
- __test_case_3(fs_info, em_tree, 0);
- __test_case_3(fs_info, em_tree, SZ_8K);
- __test_case_3(fs_info, em_tree, (12 * 1024ULL));
+ int ret;
+
+ ret = __test_case_3(fs_info, em_tree, 0);
+ if (ret)
+ return ret;
+ ret = __test_case_3(fs_info, em_tree, SZ_8K);
+ if (ret)
+ return ret;
+ ret = __test_case_3(fs_info, em_tree, (12 * SZ_1K));
+
+ return ret;
}
-static void __test_case_4(struct btrfs_fs_info *fs_info,
+static int __test_case_4(struct btrfs_fs_info *fs_info,
struct extent_map_tree *em_tree, u64 start)
{
struct extent_map *em;
@@ -254,9 +310,10 @@ static void __test_case_4(struct btrfs_fs_info *fs_info,
int ret;
em = alloc_extent_map();
- if (!em)
- /* Skip this test on error. */
- return;
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ return -ENOMEM;
+ }
/* Add [0K, 8K) */
em->start = 0;
@@ -264,44 +321,60 @@ static void __test_case_4(struct btrfs_fs_info *fs_info,
em->block_start = 0;
em->block_len = SZ_8K;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [0, 8K)");
+ goto out;
+ }
free_extent_map(em);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
- /* Add [8K, 24K) */
+ /* Add [8K, 32K) */
em->start = SZ_8K;
- em->len = 24 * 1024ULL;
+ em->len = 24 * SZ_1K;
em->block_start = SZ_16K; /* avoid merging */
- em->block_len = 24 * 1024ULL;
+ em->block_len = 24 * SZ_1K;
ret = add_extent_mapping(em_tree, em, 0);
- ASSERT(ret == 0);
+ if (ret < 0) {
+ test_err("cannot add extent range [8K, 32K)");
+ goto out;
+ }
free_extent_map(em);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ test_std_err(TEST_ALLOC_EXTENT_MAP);
+ ret = -ENOMEM;
goto out;
+ }
/* Add [0K, 32K) */
em->start = 0;
em->len = SZ_32K;
em->block_start = 0;
em->block_len = SZ_32K;
ret = btrfs_add_extent_mapping(fs_info, em_tree, &em, start, len);
- if (ret)
+ if (ret) {
test_err("case4 [0x%llx 0x%llx): ret %d",
start, len, ret);
- if (em &&
- (start < em->start || start + len > extent_map_end(em)))
+ goto out;
+ }
+ if (em && (start < em->start || start + len > extent_map_end(em))) {
test_err(
"case4 [0x%llx 0x%llx): ret %d, added wrong em (start 0x%llx len 0x%llx block_start 0x%llx block_len 0x%llx)",
start, len, ret, em->start, em->len, em->block_start,
em->block_len);
+ ret = -EINVAL;
+ }
free_extent_map(em);
out:
- /* free memory */
free_extent_map_tree(em_tree);
+
+ return ret;
}
/*
@@ -329,17 +402,24 @@ out:
* # handle -EEXIST when adding
* # [0, 32K)
*/
-static void test_case_4(struct btrfs_fs_info *fs_info,
+static int test_case_4(struct btrfs_fs_info *fs_info,
struct extent_map_tree *em_tree)
{
- __test_case_4(fs_info, em_tree, 0);
- __test_case_4(fs_info, em_tree, SZ_4K);
+ int ret;
+
+ ret = __test_case_4(fs_info, em_tree, 0);
+ if (ret)
+ return ret;
+ ret = __test_case_4(fs_info, em_tree, SZ_4K);
+
+ return ret;
}
int btrfs_test_extent_map(void)
{
struct btrfs_fs_info *fs_info = NULL;
struct extent_map_tree *em_tree;
+ int ret = 0;
test_msg("running extent_map tests");
@@ -349,25 +429,32 @@ int btrfs_test_extent_map(void)
*/
fs_info = btrfs_alloc_dummy_fs_info(PAGE_SIZE, PAGE_SIZE);
if (!fs_info) {
- test_msg("Couldn't allocate dummy fs info");
+ test_std_err(TEST_ALLOC_FS_INFO);
return -ENOMEM;
}
em_tree = kzalloc(sizeof(*em_tree), GFP_KERNEL);
- if (!em_tree)
- /* Skip the test on error. */
+ if (!em_tree) {
+ ret = -ENOMEM;
goto out;
+ }
extent_map_tree_init(em_tree);
- test_case_1(fs_info, em_tree);
- test_case_2(fs_info, em_tree);
- test_case_3(fs_info, em_tree);
- test_case_4(fs_info, em_tree);
+ ret = test_case_1(fs_info, em_tree);
+ if (ret)
+ goto out;
+ ret = test_case_2(fs_info, em_tree);
+ if (ret)
+ goto out;
+ ret = test_case_3(fs_info, em_tree);
+ if (ret)
+ goto out;
+ ret = test_case_4(fs_info, em_tree);
- kfree(em_tree);
out:
+ kfree(em_tree);
btrfs_free_dummy_fs_info(fs_info);
- return 0;
+ return ret;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.