/* Prepare for the test, 1st create 3 x 1M extents. */
bioc->map_type = map_type;
bioc->size = len1;
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 = logical1 + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc); if (ret) {
test_err("inserting RAID extent failed: %d", ret); goto out;
}
bioc->logical = logical2;
bioc->size = len2; 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 = logical2 + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc); if (ret) {
test_err("inserting RAID extent failed: %d", ret); goto out;
}
bioc->logical = logical3;
bioc->size = len3; 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 = logical3 + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc); if (ret) {
test_err("inserting RAID extent failed: %d", ret); goto out;
}
/* * Delete a range starting at logical1 + 256K and 2M in length. Extent * 1 is truncated to 256k length, extent 2 is completely dropped and * extent 3 is moved 256K to the right.
*/
ret = btrfs_delete_raid_extent(trans, hole_start, hole_len); if (ret) {
test_err("deleting RAID extent [%llu, %llu] failed",
hole_start, hole_start + hole_len); goto out;
}
/* Get the first extent and check its size. */
ret = btrfs_get_raid_extent_offset(fs_info, logical1, &len1, map_type,
0, &io_stripe); if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed",
logical1, logical1 + len1); goto out;
}
if (io_stripe.physical != logical1) {
test_err("invalid physical address, expected %llu, got %llu",
logical1, io_stripe.physical);
ret = -EINVAL; goto out;
}
if (len1 != SZ_256K) {
test_err("invalid stripe length, expected %llu, got %llu",
(u64)SZ_256K, len1);
ret = -EINVAL; goto out;
}
/* Get the second extent and check it's absent. */
ret = btrfs_get_raid_extent_offset(fs_info, logical2, &len2, map_type,
0, &io_stripe); if (ret != -ENODATA) {
test_err("lookup of RAID extent [%llu, %llu] succeeded should fail",
logical2, logical2 + len2);
ret = -EINVAL; goto out;
}
/* Get the third extent and check its size. */
logical3 += SZ_256K;
ret = btrfs_get_raid_extent_offset(fs_info, logical3, &len3, map_type,
0, &io_stripe); if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed",
logical3, logical3 + len3); goto out;
}
/* Prepare for the test, 1st create 3 x 1M extents. */
bioc->map_type = map_type;
bioc->size = len1;
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 = logical1 + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc); if (ret) {
test_err("inserting RAID extent failed: %d", ret); goto out;
}
bioc->logical = logical2;
bioc->size = len2; 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 = logical2 + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc); if (ret) {
test_err("inserting RAID extent failed: %d", ret); goto out;
}
bioc->logical = logical3;
bioc->size = len3; 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 = logical3 + i * SZ_1G;
}
ret = btrfs_insert_one_raid_extent(trans, bioc); if (ret) {
test_err("inserting RAID extent failed: %d", ret); goto out;
}
/* * Delete a range starting at logical1 and 2M in length. Extents 1 * and 2 are dropped and extent 3 is kept as is.
*/
ret = btrfs_delete_raid_extent(trans, logical1, len1 + len2); if (ret) {
test_err("deleting RAID extent [%llu, %llu] failed",
logical1, logical1 + len1 + len2); goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical1, &len1, map_type,
0, &io_stripe); if (ret != -ENODATA) {
test_err("lookup of RAID extent [%llu, %llu] succeeded, should fail",
logical1, len1); goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical2, &len2, map_type,
0, &io_stripe); if (ret != -ENODATA) {
test_err("lookup of RAID extent [%llu, %llu] succeeded, should fail",
logical2, len2); goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical3, &len3, map_type,
0, &io_stripe); if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed",
logical3, len3); goto out;
}
if (io_stripe.physical != logical3) {
test_err("invalid physical address, expected %llu, got %llu",
logical3, io_stripe.physical);
ret = -EINVAL; goto out;
}
if (len3 != SZ_1M) {
test_err("invalid stripe length, expected %llu, got %llu",
(u64)SZ_1M, len3);
ret = -EINVAL; goto out;
}
ret = btrfs_delete_raid_extent(trans, logical3, len3);
out:
btrfs_put_bioc(bioc); return ret;
}
/* Test punching a hole into a single RAID stripe-extent. */ staticint test_punch_hole(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 logical1 = SZ_1M;
u64 hole_start = logical1 + SZ_32K;
u64 hole_len = SZ_64K;
u64 logical2 = hole_start + hole_len;
u64 len = SZ_1M;
u64 len1 = SZ_32K;
u64 len2 = len - len1 - hole_len; int ret;
bioc = alloc_btrfs_io_context(fs_info, logical1, RST_TEST_NUM_DEVICES); if (!bioc) {
test_std_err(TEST_ALLOC_IO_CONTEXT);
ret = -ENOMEM; goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical1, &len1, map_type,
0, &io_stripe); if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed",
logical1, logical1 + len1); goto out;
}
if (io_stripe.physical != logical1) {
test_err("invalid physical address, expected %llu, got %llu",
logical1, io_stripe.physical);
ret = -EINVAL; goto out;
}
if (len1 != SZ_32K) {
test_err("invalid stripe length, expected %llu, got %llu",
(u64)SZ_32K, len1);
ret = -EINVAL; goto out;
}
ret = btrfs_get_raid_extent_offset(fs_info, logical2, &len2, map_type,
0, &io_stripe); if (ret) {
test_err("lookup of RAID extent [%llu, %llu] failed", logical2,
logical2 + len2); goto out;
}
if (io_stripe.physical != logical2) {
test_err("invalid physical address, expected %llu, got %llu",
logical2, io_stripe.physical);
ret = -EINVAL; goto out;
}
if (len2 != len - len1 - hole_len) {
test_err("invalid length, expected %llu, got %llu",
len - len1 - hole_len, len2);
ret = -EINVAL; goto out;
}
/* Check for the absence of the hole. */
ret = btrfs_get_raid_extent_offset(fs_info, hole_start, &hole_len,
map_type, 0, &io_stripe); if (ret != -ENODATA) {
ret = -EINVAL;
test_err("lookup of RAID extent [%llu, %llu] succeeded, should fail",
hole_start, hole_start + SZ_64K); goto out;
}
ret = btrfs_delete_raid_extent(trans, logical1, len1); if (ret) goto out;
ret = btrfs_delete_raid_extent(trans, logical2, len2);
out:
btrfs_put_bioc(bioc); return ret;
}
/* * Test a 1M RST write that spans two adjacent RST items on disk and then * delete a portion starting in the first item and spanning into the second * item. This is similar to test_front_delete(), but spanning multiple items.
*/ staticint test_front_delete_prev_item(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 logical1 = SZ_1M;
u64 logical2 = SZ_2M;
u64 len = SZ_1M; int ret;
bioc = alloc_btrfs_io_context(fs_info, logical1, RST_TEST_NUM_DEVICES); if (!bioc) {
test_std_err(TEST_ALLOC_IO_CONTEXT);
ret = -ENOMEM; goto out;
}
if (len != SZ_512K) {
test_err("invalid stripe length, expected %llu got %llu",
(u64)SZ_512K, len);
ret = -EINVAL; goto out;
}
/* Verify there's a hole at [1M+512K, 2M+512K] . */
len = SZ_1M;
ret = btrfs_get_raid_extent_offset(fs_info, logical1 + SZ_512K, &len,
map_type, 0, &io_stripe); if (ret != -ENODATA) {
test_err("lookup of RAID [%llu, %llu] succeeded, should fail",
logical1 + SZ_512K, logical1 + SZ_512K + len); goto out;
}
/* Clean up after us. */
ret = btrfs_delete_raid_extent(trans, logical1, SZ_512K); if (ret) goto out;
ret = btrfs_delete_raid_extent(trans, logical2 + SZ_512K, SZ_512K);
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 * delete the 1st 32K, making the new start address 1M+32K.
*/ staticint 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;
}
/* * 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.
*/ staticint 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;
}
len = SZ_48K;
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_48K) {
test_err("invalid stripe length, expected %llu, got %llu",
(u64)SZ_48K, len);
ret = -EINVAL; goto out;
}
len = SZ_16K;
ret = btrfs_get_raid_extent_offset(fs_info, logical + SZ_48K, &len,
map_type, 0, &io_stripe); if (ret != -ENODATA) {
test_err("lookup of RAID extent [%llu, %llu] succeeded should fail",
logical + SZ_48K, logical + SZ_64K);
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. * The intent of this test is to exercise the 'update_raid_extent_item()' * function called be btrfs_insert_one_raid_extent().
*/ staticint test_create_update_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;
}
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, len); if (ret)
test_err("deleting RAID extent [%llu, %llu] failed", logical,
logical + len);
out:
btrfs_put_bioc(bioc); return ret;
}
/* * Test a simple 64K RST write on a 2 disk RAID1 at a logical address of 1M. * The "physical" copy on device 0 is at 1M, on device 1 it is at 1G+1M.
*/ staticint test_simple_create_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;
}
bioc->map_type = map_type;
bioc->size = SZ_64K;
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, len); if (ret)
test_err("deleting RAID extent [%llu, %llu] failed", logical,
logical + len);
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