Btrfs: self-tests: Support non-4k page size
self-tests code assumes 4k as the sectorsize and nodesize. This commit
fix hardcoded 4K. Enables the self-tests code to be executed on non-4k
page sized systems (e.g. ppc64).
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Feifei Xu <xufeifei@linux.vnet.ibm.com>
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c
index f3756d6..029343b 100644
--- a/fs/btrfs/tests/free-space-tests.c
+++ b/fs/btrfs/tests/free-space-tests.c
@@ -99,7 +99,8 @@
return 0;
}
-static int test_bitmaps(struct btrfs_block_group_cache *cache)
+static int test_bitmaps(struct btrfs_block_group_cache *cache,
+ u32 sectorsize)
{
u64 next_bitmap_offset;
int ret;
@@ -139,7 +140,7 @@
* The first bitmap we have starts at offset 0 so the next one is just
* at the end of the first bitmap.
*/
- next_bitmap_offset = (u64)(BITS_PER_BITMAP * 4096);
+ next_bitmap_offset = (u64)(BITS_PER_BITMAP * sectorsize);
/* Test a bit straddling two bitmaps */
ret = test_add_free_space_entry(cache, next_bitmap_offset - SZ_2M,
@@ -167,9 +168,10 @@
}
/* This is the high grade jackassery */
-static int test_bitmaps_and_extents(struct btrfs_block_group_cache *cache)
+static int test_bitmaps_and_extents(struct btrfs_block_group_cache *cache,
+ u32 sectorsize)
{
- u64 bitmap_offset = (u64)(BITS_PER_BITMAP * 4096);
+ u64 bitmap_offset = (u64)(BITS_PER_BITMAP * sectorsize);
int ret;
test_msg("Running bitmap and extent tests\n");
@@ -401,7 +403,8 @@
* requests.
*/
static int
-test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
+test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache,
+ u32 sectorsize)
{
int ret;
u64 offset;
@@ -539,7 +542,7 @@
* The goal is to test that the bitmap entry space stealing doesn't
* steal this space region.
*/
- ret = btrfs_add_free_space(cache, SZ_128M + SZ_16M, 4096);
+ ret = btrfs_add_free_space(cache, SZ_128M + SZ_16M, sectorsize);
if (ret) {
test_msg("Error adding free space: %d\n", ret);
return ret;
@@ -597,8 +600,8 @@
return -ENOENT;
}
- if (cache->free_space_ctl->free_space != (SZ_1M + 4096)) {
- test_msg("Cache free space is not 1Mb + 4Kb\n");
+ if (cache->free_space_ctl->free_space != (SZ_1M + sectorsize)) {
+ test_msg("Cache free space is not 1Mb + %u\n", sectorsize);
return -EINVAL;
}
@@ -611,22 +614,25 @@
return -EINVAL;
}
- /* All that remains is a 4Kb free space region in a bitmap. Confirm. */
+ /*
+ * All that remains is a sectorsize free space region in a bitmap.
+ * Confirm.
+ */
ret = check_num_extents_and_bitmaps(cache, 1, 1);
if (ret)
return ret;
- if (cache->free_space_ctl->free_space != 4096) {
- test_msg("Cache free space is not 4Kb\n");
+ if (cache->free_space_ctl->free_space != sectorsize) {
+ test_msg("Cache free space is not %u\n", sectorsize);
return -EINVAL;
}
offset = btrfs_find_space_for_alloc(cache,
- 0, 4096, 0,
+ 0, sectorsize, 0,
&max_extent_size);
if (offset != (SZ_128M + SZ_16M)) {
- test_msg("Failed to allocate 4Kb from space cache, returned offset is: %llu\n",
- offset);
+ test_msg("Failed to allocate %u, returned offset : %llu\n",
+ sectorsize, offset);
return -EINVAL;
}
@@ -733,7 +739,7 @@
* The goal is to test that the bitmap entry space stealing doesn't
* steal this space region.
*/
- ret = btrfs_add_free_space(cache, SZ_32M, 8192);
+ ret = btrfs_add_free_space(cache, SZ_32M, 2 * sectorsize);
if (ret) {
test_msg("Error adding free space: %d\n", ret);
return ret;
@@ -757,7 +763,7 @@
/*
* Confirm that our extent entry didn't stole all free space from the
- * bitmap, because of the small 8Kb free space region.
+ * bitmap, because of the small 2 * sectorsize free space region.
*/
ret = check_num_extents_and_bitmaps(cache, 2, 1);
if (ret)
@@ -783,8 +789,8 @@
return -ENOENT;
}
- if (cache->free_space_ctl->free_space != (SZ_1M + 8192)) {
- test_msg("Cache free space is not 1Mb + 8Kb\n");
+ if (cache->free_space_ctl->free_space != (SZ_1M + 2 * sectorsize)) {
+ test_msg("Cache free space is not 1Mb + %u\n", 2 * sectorsize);
return -EINVAL;
}
@@ -796,21 +802,25 @@
return -EINVAL;
}
- /* All that remains is a 8Kb free space region in a bitmap. Confirm. */
+ /*
+ * All that remains is 2 * sectorsize free space region
+ * in a bitmap. Confirm.
+ */
ret = check_num_extents_and_bitmaps(cache, 1, 1);
if (ret)
return ret;
- if (cache->free_space_ctl->free_space != 8192) {
- test_msg("Cache free space is not 8Kb\n");
+ if (cache->free_space_ctl->free_space != 2 * sectorsize) {
+ test_msg("Cache free space is not %u\n", 2 * sectorsize);
return -EINVAL;
}
offset = btrfs_find_space_for_alloc(cache,
- 0, 8192, 0,
+ 0, 2 * sectorsize, 0,
&max_extent_size);
if (offset != SZ_32M) {
- test_msg("Failed to allocate 8Kb from space cache, returned offset is: %llu\n",
+ test_msg("Failed to allocate %u, offset: %llu\n",
+ 2 * sectorsize,
offset);
return -EINVAL;
}
@@ -825,7 +835,7 @@
return 0;
}
-int btrfs_test_free_space_cache(void)
+int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize)
{
struct btrfs_block_group_cache *cache;
struct btrfs_root *root = NULL;
@@ -833,13 +843,13 @@
test_msg("Running btrfs free space cache tests\n");
- cache = btrfs_alloc_dummy_block_group(1024 * 1024 * 1024);
+ cache = btrfs_alloc_dummy_block_group(1024 * 1024 * 1024, sectorsize);
if (!cache) {
test_msg("Couldn't run the tests\n");
return 0;
}
- root = btrfs_alloc_dummy_root();
+ root = btrfs_alloc_dummy_root(sectorsize, nodesize);
if (IS_ERR(root)) {
ret = PTR_ERR(root);
goto out;
@@ -855,14 +865,14 @@
ret = test_extents(cache);
if (ret)
goto out;
- ret = test_bitmaps(cache);
+ ret = test_bitmaps(cache, sectorsize);
if (ret)
goto out;
- ret = test_bitmaps_and_extents(cache);
+ ret = test_bitmaps_and_extents(cache, sectorsize);
if (ret)
goto out;
- ret = test_steal_space_from_bitmap_to_extent(cache);
+ ret = test_steal_space_from_bitmap_to_extent(cache, sectorsize);
out:
btrfs_free_dummy_block_group(cache);
btrfs_free_dummy_root(root);