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btrfs: tests: implement case for partial RAID stripe-tree delete

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Implement self-tests for partial deletion of RAID stripe-tree entries.

These two new tests cover both the deletion of the front of a RAID
stripe-tree stripe extent as well as truncation of an item to make it
smaller.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2024-10-23 15:25:18 +02:00 committed by David Sterba
parent 6aea95ee31
commit 6e6ecdec22
1 changed files with 221 additions and 0 deletions
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221
fs/btrfs/tests/raid-stripe-tree-tests.c
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@ -29,6 +29,225 @@ static struct btrfs_device *btrfs_device_by_devid(struct btrfs_fs_devices *fs_de
return NULL;
}
/*
* Test a 64K RST write on a 2 disk RAID1 at a logical address of 1M and then
* delete the 1st 32K, making the new start address 1M+32K.
*/
static int test_front_delete(struct btrfs_trans_handle *trans)
{
struct btrfs_fs_info *fs_info = trans->fs_info;
struct btrfs_io_context *bioc;
struct btrfs_io_stripe io_stripe = { 0 };
u64 map_type = RST_TEST_RAID1_TYPE;
u64 logical = SZ_1M;
u64 len = SZ_64K;
int ret;
bioc = alloc_btrfs_io_context(fs_info, logical, RST_TEST_NUM_DEVICES);
if (!bioc) {
test_std_err(TEST_ALLOC_IO_CONTEXT);
ret = -ENOMEM;
goto out;
}
io_stripe.dev = btrfs_device_by_devid(fs_info->fs_devices, 0);
bioc->map_type = map_type;
bioc->size = len;
for (int i = 0; i < RST_TEST_NUM_DEVICES; i++) {
struct btrfs_io_stripe *stripe = &bioc->stripes[i];
stripe->dev = btrfs_device_by_devid(fs_info->fs_devices, i);
if (!stripe->dev) {
test_err("cannot find device with devid %d", i);
ret = -EINVAL;
goto out;
}
stripe->physical = logical + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc);
if (ret) {
test_err("inserting RAID extent failed: %d", ret);
goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical, &len, map_type, 0, &io_stripe);
if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed", logical,
logical + len);
goto out;
}
if (io_stripe.physical != logical) {
test_err("invalid physical address, expected %llu got %llu",
logical, io_stripe.physical);
ret = -EINVAL;
goto out;
}
if (len != SZ_64K) {
test_err("invalid stripe length, expected %llu got %llu",
(u64)SZ_64K, len);
ret = -EINVAL;
goto out;
}
ret = btrfs_delete_raid_extent(trans, logical, SZ_32K);
if (ret) {
test_err("deleting RAID extent [%llu, %llu] failed", logical,
logical + SZ_32K);
goto out;
}
len = SZ_32K;
ret = btrfs_get_raid_extent_offset(fs_info, logical + SZ_32K, &len,
map_type, 0, &io_stripe);
if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed",
logical + SZ_32K, logical + SZ_32K + len);
goto out;
}
if (io_stripe.physical != logical + SZ_32K) {
test_err("invalid physical address, expected %llu, got %llu",
logical + SZ_32K, io_stripe.physical);
ret = -EINVAL;
goto out;
}
if (len != SZ_32K) {
test_err("invalid stripe length, expected %llu, got %llu",
(u64)SZ_32K, len);
ret = -EINVAL;
goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical, &len, map_type, 0, &io_stripe);
if (!ret) {
ret = -EINVAL;
test_err("lookup of RAID extent [%llu, %llu] succeeded, should fail",
logical, logical + SZ_32K);
goto out;
}
ret = btrfs_delete_raid_extent(trans, logical + SZ_32K, SZ_32K);
out:
btrfs_put_bioc(bioc);
return ret;
}
/*
* Test a 64K RST write on a 2 disk RAID1 at a logical address of 1M and then
* truncate the stripe extent down to 32K.
*/
static int test_tail_delete(struct btrfs_trans_handle *trans)
{
struct btrfs_fs_info *fs_info = trans->fs_info;
struct btrfs_io_context *bioc;
struct btrfs_io_stripe io_stripe = { 0 };
u64 map_type = RST_TEST_RAID1_TYPE;
u64 logical = SZ_1M;
u64 len = SZ_64K;
int ret;
bioc = alloc_btrfs_io_context(fs_info, logical, RST_TEST_NUM_DEVICES);
if (!bioc) {
test_std_err(TEST_ALLOC_IO_CONTEXT);
ret = -ENOMEM;
goto out;
}
io_stripe.dev = btrfs_device_by_devid(fs_info->fs_devices, 0);
bioc->map_type = map_type;
bioc->size = len;
for (int i = 0; i < RST_TEST_NUM_DEVICES; i++) {
struct btrfs_io_stripe *stripe = &bioc->stripes[i];
stripe->dev = btrfs_device_by_devid(fs_info->fs_devices, i);
if (!stripe->dev) {
test_err("cannot find device with devid %d", i);
ret = -EINVAL;
goto out;
}
stripe->physical = logical + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc);
if (ret) {
test_err("inserting RAID extent failed: %d", ret);
goto out;
}
io_stripe.dev = btrfs_device_by_devid(fs_info->fs_devices, 0);
if (!io_stripe.dev) {
ret = -EINVAL;
goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical, &len, map_type, 0, &io_stripe);
if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed", logical,
logical + len);
goto out;
}
if (io_stripe.physical != logical) {
test_err("invalid physical address, expected %llu got %llu",
logical, io_stripe.physical);
ret = -EINVAL;
goto out;
}
if (len != SZ_64K) {
test_err("invalid stripe length, expected %llu got %llu",
(u64)SZ_64K, len);
ret = -EINVAL;
goto out;
}
ret = btrfs_delete_raid_extent(trans, logical + SZ_32K, SZ_32K);
if (ret) {
test_err("deleting RAID extent [%llu, %llu] failed",
logical + SZ_32K, logical + SZ_64K);
goto out;
}
len = SZ_32K;
ret = btrfs_get_raid_extent_offset(fs_info, logical, &len, map_type, 0, &io_stripe);
if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed", logical,
logical + len);
goto out;
}
if (io_stripe.physical != logical) {
test_err("invalid physical address, expected %llu, got %llu",
logical, io_stripe.physical);
ret = -EINVAL;
goto out;
}
if (len != SZ_32K) {
test_err("invalid stripe length, expected %llu, got %llu",
(u64)SZ_32K, len);
ret = -EINVAL;
goto out;
}
ret = btrfs_delete_raid_extent(trans, logical, len);
if (ret)
test_err("deleting RAID extent [%llu, %llu] failed", logical,
logical + len);
out:
btrfs_put_bioc(bioc);
return ret;
}
/*
* Test a 64K RST write on a 2 disk RAID1 at a logical address of 1M and then
* overwrite the whole range giving it new physical address at an offset of 1G.
@ -235,6 +454,8 @@ static int test_simple_create_delete(struct btrfs_trans_handle *trans)
static const test_func_t tests[] = {
test_simple_create_delete,
test_create_update_delete,
test_tail_delete,
test_front_delete,
};
static int run_test(test_func_t test, u32 sectorsize, u32 nodesize)