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Spdk/include/spdk
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Mike Gerdts 76f4b77726 lvol: esnap clones must end on cluster boundary 
When regular lvols are created, their size is rounded up to the next
cluster boundary. This is not acceptable for esnap clones as this means
that the clone may be silently grown larger than external snapshot. This
can cause a variety of problems for the consumer of an esnap clone lvol.

While the better long-term solution is to allow lvol sizes to fall on
any block boundary, the implementation of that needs to be suprisingly
complex to support creation and deletion of snapshots and clones of
esnap clones, inflation, and backward compatibility.

For now, it is best to put in a restriction on the esnap clone size
during creation so as to not hit problems long after creation. Since
lvols are generally expected to be large relative to the cluster size,
it is somewhat unlikely that this restriction will be a significant
limitation.

Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: Id7a628f852a40c8ec2b7146504183943d723deba
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17607
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2023-05-02 18:32:19 +00:00
..
accel_module.h accel: collect stats on the number of processed bytes 2023-04-26 11:15:40 +00:00
accel.h accel: add method for getting per-channel opcode stats 2023-04-26 11:15:40 +00:00
assert.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
barrier.h barrier: LOONGARCH memory barriers 2023-01-06 15:54:46 +00:00
base64.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
bdev_module.h bdev: always generate UUIDs 2023-04-13 12:12:58 +00:00
bdev_zone.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
bdev.h bdev: accel sequence support for write requests 2023-03-13 21:02:27 +00:00
bit_array.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
bit_pool.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
blob_bdev.h blob_bdev: fix doc for spdk_bs_bdev_claim 2023-04-06 21:30:03 +00:00
blob.h blob: esnap clones are not clones 2023-04-26 17:32:13 +00:00
blobfs_bdev.h build: compile API functions with missing deps 2022-11-18 08:40:05 +00:00
blobfs.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
conf.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
cpuset.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
crc16.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
crc32.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
dif.h misc: Fix spelling mistakes 2022-12-09 08:16:18 +00:00
dma.h dma: add "virtual" accel memory domain 2023-01-09 12:37:37 +00:00
endian.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
env_dpdk.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
env.h env: added support for lcore map 2023-04-10 17:58:20 +00:00
event.h env: added support for lcore map 2023-04-10 17:58:20 +00:00
fd_group.h util: Add spdk_fd_group_nest() and spdk_fd_group_unnest 2023-04-04 17:38:22 +00:00
fd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
file.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
ftl.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
gpt_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
hexlify.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
histogram_data.h histogram_data: check bucket_shift when merging 2022-12-21 09:32:40 +00:00
idxd_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
idxd.h lib/idxd: Removed SPDK_IDXD_FLAG_PERSISTENT flag 2023-03-03 11:20:03 +00:00
init.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
ioat_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
ioat.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
iscsi_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
json.h json: add spdk_json_write_named_double 2022-11-22 10:01:43 +00:00
jsonrpc.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
likely.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
log.h log: make macro parameters lowercase 2023-02-22 08:09:26 +00:00
lvol.h lvol: esnap clones must end on cluster boundary 2023-05-02 18:32:19 +00:00
memory.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
mmio.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nbd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
notify.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_intel.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_ocssd_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_ocssd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_spec.h lib/nvme: include dword 13 field to extendable command structure 2023-03-09 23:22:41 +00:00
nvme_zns.h Replace most BSD 3-clause license text with SPDX identifier. 2022-06-09 07:35:12 +00:00
nvme.h nvme: fix async_mode comment 2023-04-20 10:56:42 +00:00
nvmf_cmd.h nvmf: add spdk_nvmf_request_copy_*_buf() 2023-02-13 13:50:51 +00:00
nvmf_fc_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvmf_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvmf_transport.h nvmf: retry QID check if duplicate detected 2023-04-07 17:47:13 +00:00
nvmf.h nvmf: initialize trid param in get_***_trid paths 2023-04-27 09:24:18 +00:00
opal_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
opal.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
pci_ids.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
pipe.h util/pipe: Fix documentation on spdk_pipe_create 2023-04-06 20:20:19 +00:00
queue_extras.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
queue.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
reduce.h bdev/compress: Port to use accel_fw instead of compressdev 2023-01-20 10:26:21 +00:00
rpc.h lib/rpc: add RPC allow list 2022-11-15 08:31:02 +00:00
scheduler.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
scsi_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
scsi.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
sock.h sock/uring: Flushing a socket not in a group still attempts to send 2023-01-19 17:34:01 +00:00
stdinc.h include: add libgen.h to stdinc.h 2023-04-26 17:32:13 +00:00
string.h util: Add spdk_strcpy_replace() to replace substrings 2023-01-10 13:12:05 +00:00
thread.h thread: Move get/put calls into .c file 2023-04-06 20:16:49 +00:00
trace_parser.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
trace.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
tree.h util: rename RB_ROOT into _RB_ROOT 2021-06-04 22:46:40 +00:00
ublk.h ublk: add configure and event/subsystem 2023-01-20 07:48:25 +00:00
util.h util: add spdk_iov_xfer_*() API 2023-01-30 16:28:35 +00:00
uuid.h uuid: add spdk_uuid_generate_sha1() 2023-02-28 08:57:01 +00:00
version.h version: SPDK 23.05 pre 2023-01-20 22:03:09 +00:00
vfio_user_pci.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
vfio_user_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
vfu_target.h lib/vfu_target: add missed comments to vfu_target.h 2022-12-02 10:44:51 +00:00
vhost.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
vmd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
xor.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
zipf.h update Intel copyright notices 2022-11-10 08:28:53 +00:00