/sys/block:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
dr-xr-xr-x. 12 root root 0 Nov 16 12:18 ..
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 dm-0 -> ../devices/virtual/block/dm-0
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 dm-1 -> ../devices/virtual/block/dm-1
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 loop0 -> ../devices/virtual/block/loop0
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 loop1 -> ../devices/virtual/block/loop1
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 loop2 -> ../devices/virtual/block/loop2
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 vda -> ../devices/pci0000:00/0000:00:04.0/virtio1/block/vda
/sys/devices/virtual/block:
total 0
drwxr-xr-x.  7 root root 0 Nov 16 12:18 .
drwxr-xr-x. 17 root root 0 Nov 16 12:18 ..
drwxr-xr-x.  9 root root 0 Nov 16 12:18 dm-0
drwxr-xr-x.  9 root root 0 Nov 16 12:18 dm-1
drwxr-xr-x. 10 root root 0 Nov 16 12:18 loop0
drwxr-xr-x. 10 root root 0 Nov 16 12:18 loop1
drwxr-xr-x. 10 root root 0 Nov 16 12:18 loop2

/sys/devices/virtual/block/dm-0:
total 0
drwxr-xr-x. 9 root root     0 Nov 16 12:18 .
drwxr-xr-x. 7 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 alignment_offset
-rw-r--r--. 1 root root 65536 Nov 16 12:18 badblocks
lrwxrwxrwx. 1 root root     0 Nov 16 12:18 bdi -> ../../bdi/253:0
-r--r--r--. 1 root root 65536 Nov 16 12:18 capability
-r--r--r--. 1 root root 65536 Nov 16 12:18 dev
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_alignment
drwxr-xr-x. 2 root root     0 Nov 16 12:18 dm
-r--r--r--. 1 root root 65536 Nov 16 12:18 ext_range
drwxr-xr-x. 2 root root     0 Nov 16 12:18 holders
-r--r--r--. 1 root root 65536 Nov 16 12:18 inflight
drwxr-xr-x. 2 root root     0 Nov 16 12:18 integrity
drwxr-xr-x. 2 root root     0 Nov 16 12:18 power
drwxr-xr-x. 2 root root     0 Nov 16 12:18 queue
-r--r--r--. 1 root root 65536 Nov 16 12:18 range
-r--r--r--. 1 root root 65536 Nov 16 12:18 removable
-r--r--r--. 1 root root 65536 Nov 16 12:18 ro
-r--r--r--. 1 root root 65536 Nov 16 12:18 size
drwxr-xr-x. 2 root root     0 Nov 16 12:18 slaves
-r--r--r--. 1 root root 65536 Nov 16 12:18 stat
lrwxrwxrwx. 1 root root     0 Nov 16 12:18 subsystem -> ../../../../class/block
drwxr-xr-x. 2 root root     0 Nov 16 12:18 trace
-rw-r--r--. 1 root root 65536 Nov 16 12:18 uevent

/sys/devices/virtual/block/dm-0/dm:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 name
-rw-r--r--. 1 root root 65536 Nov 16 12:18 rq_based_seq_io_merge_deadline
-r--r--r--. 1 root root 65536 Nov 16 12:18 suspended
-r--r--r--. 1 root root 65536 Nov 16 12:18 use_blk_mq
-r--r--r--. 1 root root 65536 Nov 16 12:18 uuid

/sys/devices/virtual/block/dm-0/holders:
total 0
drwxr-xr-x. 2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 9 root root 0 Nov 16 12:18 ..

/sys/devices/virtual/block/dm-0/integrity:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 device_is_integrity_capable
-r--r--r--. 1 root root 65536 Nov 16 12:18 format
-r--r--r--. 1 root root 65536 Nov 16 12:18 protection_interval_bytes
-rw-r--r--. 1 root root 65536 Nov 16 12:18 read_verify
-r--r--r--. 1 root root 65536 Nov 16 12:18 tag_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 write_generate

/sys/devices/virtual/block/dm-0/power:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-rw-r--r--. 1 root root 65536 Nov 16 12:18 async
-rw-r--r--. 1 root root 65536 Nov 16 12:18 autosuspend_delay_ms
-rw-r--r--. 1 root root 65536 Nov 16 12:18 control
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_active_kids
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_active_time
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_enabled
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_status
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_suspended_time
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_usage

/sys/devices/virtual/block/dm-0/queue:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-rw-r--r--. 1 root root 65536 Nov 16 12:18 add_random
-r--r--r--. 1 root root 65536 Nov 16 12:18 dax
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_granularity
-rw-r--r--. 1 root root 65536 Nov 16 12:18 discard_max_bytes
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_max_hw_bytes
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_zeroes_data
-r--r--r--. 1 root root 65536 Nov 16 12:18 hw_sector_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 io_poll
-rw-r--r--. 1 root root 65536 Nov 16 12:18 iostats
-r--r--r--. 1 root root 65536 Nov 16 12:18 logical_block_size
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_hw_sectors_kb
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_integrity_segments
-rw-r--r--. 1 root root 65536 Nov 16 12:18 max_sectors_kb
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_segment_size
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_segments
-r--r--r--. 1 root root 65536 Nov 16 12:18 minimum_io_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 nomerges
-rw-r--r--. 1 root root 65536 Nov 16 12:18 nr_requests
-r--r--r--. 1 root root 65536 Nov 16 12:18 optimal_io_size
-r--r--r--. 1 root root 65536 Nov 16 12:18 physical_block_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 read_ahead_kb
-rw-r--r--. 1 root root 65536 Nov 16 12:18 rotational
-rw-r--r--. 1 root root 65536 Nov 16 12:18 rq_affinity
-rw-r--r--. 1 root root 65536 Nov 16 12:18 scheduler
-rw-r--r--. 1 root root 65536 Nov 16 12:18 write_cache
-r--r--r--. 1 root root 65536 Nov 16 12:18 write_same_max_bytes

/sys/devices/virtual/block/dm-0/slaves:
total 0
drwxr-xr-x. 2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 9 root root 0 Nov 16 12:18 ..
lrwxrwxrwx. 1 root root 0 Nov 16 12:18 loop1 -> ../../loop1
lrwxrwxrwx. 1 root root 0 Nov 16 12:18 loop2 -> ../../loop2

/sys/devices/virtual/block/dm-0/trace:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-rw-r--r--. 1 root root 65536 Nov 16 12:18 act_mask
-rw-r--r--. 1 root root 65536 Nov 16 12:18 enable
-rw-r--r--. 1 root root 65536 Nov 16 12:18 end_lba
-rw-r--r--. 1 root root 65536 Nov 16 12:18 pid
-rw-r--r--. 1 root root 65536 Nov 16 12:18 start_lba

/sys/devices/virtual/block/dm-1:
total 0
drwxr-xr-x. 9 root root     0 Nov 16 12:18 .
drwxr-xr-x. 7 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 alignment_offset
-rw-r--r--. 1 root root 65536 Nov 16 12:18 badblocks
lrwxrwxrwx. 1 root root     0 Nov 16 12:18 bdi -> ../../bdi/253:1
-r--r--r--. 1 root root 65536 Nov 16 12:18 capability
-r--r--r--. 1 root root 65536 Nov 16 12:18 dev
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_alignment
drwxr-xr-x. 2 root root     0 Nov 16 12:18 dm
-r--r--r--. 1 root root 65536 Nov 16 12:18 ext_range
drwxr-xr-x. 2 root root     0 Nov 16 12:18 holders
-r--r--r--. 1 root root 65536 Nov 16 12:18 inflight
drwxr-xr-x. 2 root root     0 Nov 16 12:18 integrity
drwxr-xr-x. 2 root root     0 Nov 16 12:18 power
drwxr-xr-x. 2 root root     0 Nov 16 12:18 queue
-r--r--r--. 1 root root 65536 Nov 16 12:18 range
-r--r--r--. 1 root root 65536 Nov 16 12:18 removable
-r--r--r--. 1 root root 65536 Nov 16 12:18 ro
-r--r--r--. 1 root root 65536 Nov 16 12:18 size
drwxr-xr-x. 2 root root     0 Nov 16 12:18 slaves
-r--r--r--. 1 root root 65536 Nov 16 12:18 stat
lrwxrwxrwx. 1 root root     0 Nov 16 12:18 subsystem -> ../../../../class/block
drwxr-xr-x. 2 root root     0 Nov 16 12:18 trace
-rw-r--r--. 1 root root 65536 Nov 16 12:18 uevent

/sys/devices/virtual/block/dm-1/dm:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 name
-rw-r--r--. 1 root root 65536 Nov 16 12:18 rq_based_seq_io_merge_deadline
-r--r--r--. 1 root root 65536 Nov 16 12:18 suspended
-r--r--r--. 1 root root 65536 Nov 16 12:18 use_blk_mq
-r--r--r--. 1 root root 65536 Nov 16 12:18 uuid

/sys/devices/virtual/block/dm-1/holders:
total 0
drwxr-xr-x. 2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 9 root root 0 Nov 16 12:18 ..

/sys/devices/virtual/block/dm-1/integrity:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 device_is_integrity_capable
-r--r--r--. 1 root root 65536 Nov 16 12:18 format
-r--r--r--. 1 root root 65536 Nov 16 12:18 protection_interval_bytes
-rw-r--r--. 1 root root 65536 Nov 16 12:18 read_verify
-r--r--r--. 1 root root 65536 Nov 16 12:18 tag_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 write_generate

/sys/devices/virtual/block/dm-1/power:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-rw-r--r--. 1 root root 65536 Nov 16 12:18 async
-rw-r--r--. 1 root root 65536 Nov 16 12:18 autosuspend_delay_ms
-rw-r--r--. 1 root root 65536 Nov 16 12:18 control
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_active_kids
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_active_time
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_enabled
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_status
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_suspended_time
-r--r--r--. 1 root root 65536 Nov 16 12:18 runtime_usage

/sys/devices/virtual/block/dm-1/queue:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-rw-r--r--. 1 root root 65536 Nov 16 12:18 add_random
-r--r--r--. 1 root root 65536 Nov 16 12:18 dax
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_granularity
-rw-r--r--. 1 root root 65536 Nov 16 12:18 discard_max_bytes
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_max_hw_bytes
-r--r--r--. 1 root root 65536 Nov 16 12:18 discard_zeroes_data
-r--r--r--. 1 root root 65536 Nov 16 12:18 hw_sector_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 io_poll
-rw-r--r--. 1 root root 65536 Nov 16 12:18 iostats
-r--r--r--. 1 root root 65536 Nov 16 12:18 logical_block_size
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_hw_sectors_kb
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_integrity_segments
-rw-r--r--. 1 root root 65536 Nov 16 12:18 max_sectors_kb
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_segment_size
-r--r--r--. 1 root root 65536 Nov 16 12:18 max_segments
-r--r--r--. 1 root root 65536 Nov 16 12:18 minimum_io_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 nomerges
-rw-r--r--. 1 root root 65536 Nov 16 12:18 nr_requests
-r--r--r--. 1 root root 65536 Nov 16 12:18 optimal_io_size
-r--r--r--. 1 root root 65536 Nov 16 12:18 physical_block_size
-rw-r--r--. 1 root root 65536 Nov 16 12:18 read_ahead_kb
-rw-r--r--. 1 root root 65536 Nov 16 12:18 rotational
-rw-r--r--. 1 root root 65536 Nov 16 12:18 rq_affinity
-rw-r--r--. 1 root root 65536 Nov 16 12:18 scheduler
-rw-r--r--. 1 root root 65536 Nov 16 12:18 write_cache
-r--r--r--. 1 root root 65536 Nov 16 12:18 write_same_max_bytes

/sys/devices/virtual/block/dm-1/slaves:
total 0
drwxr-xr-x. 2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 9 root root 0 Nov 16 12:18 ..
lrwxrwxrwx. 1 root root 0 Nov 16 12:18 loop1 -> ../../loop1

/sys/devices/virtual/block/dm-1/trace:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 9 root root     0 Nov 16 12:18 ..
-rw-r--r--. 1 root root 65536 Nov 16 12:18 act_mask
-rw-r--r--. 1 root root 65536 Nov 16 12:18 enable
-rw-r--r--. 1 root root 65536 Nov 16 12:18 end_lba
-rw-r--r--. 1 root root 65536 Nov 16 12:18 pid
-rw-r--r--. 1 root root 65536 Nov 16 12:18 start_lba

/sys/devices/virtual/block/loop0:
total 0
drwxr-xr-x. 10 root root     0 Nov 16 12:18 .
drwxr-xr-x.  7 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 alignment_offset
-rw-r--r--.  1 root root 65536 Nov 16 12:18 badblocks
lrwxrwxrwx.  1 root root     0 Nov 16 12:18 bdi -> ../../bdi/7:0
-r--r--r--.  1 root root 65536 Nov 16 12:18 capability
-r--r--r--.  1 root root 65536 Nov 16 12:18 dev
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_alignment
-r--r--r--.  1 root root 65536 Nov 16 12:18 ext_range
drwxr-xr-x.  2 root root     0 Nov 16 12:18 holders
-r--r--r--.  1 root root 65536 Nov 16 12:18 inflight
drwxr-xr-x.  2 root root     0 Nov 16 12:18 integrity
drwxr-xr-x.  2 root root     0 Nov 16 12:18 loop
drwxr-xr-x.  3 root root     0 Nov 16 12:18 mq
drwxr-xr-x.  2 root root     0 Nov 16 12:18 power
drwxr-xr-x.  2 root root     0 Nov 16 12:18 queue
-r--r--r--.  1 root root 65536 Nov 16 12:18 range
-r--r--r--.  1 root root 65536 Nov 16 12:18 removable
-r--r--r--.  1 root root 65536 Nov 16 12:18 ro
-r--r--r--.  1 root root 65536 Nov 16 12:18 size
drwxr-xr-x.  2 root root     0 Nov 16 12:18 slaves
-r--r--r--.  1 root root 65536 Nov 16 12:18 stat
lrwxrwxrwx.  1 root root     0 Nov 16 12:18 subsystem -> ../../../../class/block
drwxr-xr-x.  2 root root     0 Nov 16 12:18 trace
-rw-r--r--.  1 root root 65536 Nov 16 12:18 uevent

/sys/devices/virtual/block/loop0/holders:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..

/sys/devices/virtual/block/loop0/integrity:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 device_is_integrity_capable
-r--r--r--.  1 root root 65536 Nov 16 12:18 format
-r--r--r--.  1 root root 65536 Nov 16 12:18 protection_interval_bytes
-rw-r--r--.  1 root root 65536 Nov 16 12:18 read_verify
-r--r--r--.  1 root root 65536 Nov 16 12:18 tag_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 write_generate

/sys/devices/virtual/block/loop0/loop:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 autoclear
-r--r--r--.  1 root root 65536 Nov 16 12:18 backing_file
-r--r--r--.  1 root root 65536 Nov 16 12:18 dio
-r--r--r--.  1 root root 65536 Nov 16 12:18 offset
-r--r--r--.  1 root root 65536 Nov 16 12:18 partscan
-r--r--r--.  1 root root 65536 Nov 16 12:18 sizelimit

/sys/devices/virtual/block/loop0/mq:
total 0
drwxr-xr-x.  3 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..
drwxr-xr-x.  4 root root 0 Nov 16 12:18 0

/sys/devices/virtual/block/loop0/mq/0:
total 0
drwxr-xr-x. 4 root root     0 Nov 16 12:18 .
drwxr-xr-x. 3 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 active
drwxr-xr-x. 2 root root     0 Nov 16 12:18 cpu0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 cpu1
-r--r--r--. 1 root root 65536 Nov 16 12:18 cpu_list
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 io_poll
-r--r--r--. 1 root root 65536 Nov 16 12:18 pending
-r--r--r--. 1 root root 65536 Nov 16 12:18 queued
-r--r--r--. 1 root root 65536 Nov 16 12:18 run
-r--r--r--. 1 root root 65536 Nov 16 12:18 tags

/sys/devices/virtual/block/loop0/mq/0/cpu0:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 4 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 completed
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 merged
-r--r--r--. 1 root root 65536 Nov 16 12:18 rq_list

/sys/devices/virtual/block/loop0/mq/0/cpu1:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 4 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 completed
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 merged
-r--r--r--. 1 root root 65536 Nov 16 12:18 rq_list

/sys/devices/virtual/block/loop0/power:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 async
-rw-r--r--.  1 root root 65536 Nov 16 12:18 autosuspend_delay_ms
-rw-r--r--.  1 root root 65536 Nov 16 12:18 control
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_active_kids
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_active_time
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_enabled
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_status
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_suspended_time
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_usage

/sys/devices/virtual/block/loop0/queue:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 add_random
-r--r--r--.  1 root root 65536 Nov 16 12:18 dax
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_granularity
-rw-r--r--.  1 root root 65536 Nov 16 12:18 discard_max_bytes
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_max_hw_bytes
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_zeroes_data
-r--r--r--.  1 root root 65536 Nov 16 12:18 hw_sector_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 io_poll
-rw-r--r--.  1 root root 65536 Nov 16 12:18 iostats
-r--r--r--.  1 root root 65536 Nov 16 12:18 logical_block_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_hw_sectors_kb
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_integrity_segments
-rw-r--r--.  1 root root 65536 Nov 16 12:18 max_sectors_kb
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_segment_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_segments
-r--r--r--.  1 root root 65536 Nov 16 12:18 minimum_io_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 nomerges
-rw-r--r--.  1 root root 65536 Nov 16 12:18 nr_requests
-r--r--r--.  1 root root 65536 Nov 16 12:18 optimal_io_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 physical_block_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 read_ahead_kb
-rw-r--r--.  1 root root 65536 Nov 16 12:18 rotational
-rw-r--r--.  1 root root 65536 Nov 16 12:18 rq_affinity
-rw-r--r--.  1 root root 65536 Nov 16 12:18 scheduler
-rw-r--r--.  1 root root 65536 Nov 16 12:18 write_cache
-r--r--r--.  1 root root 65536 Nov 16 12:18 write_same_max_bytes

/sys/devices/virtual/block/loop0/slaves:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..

/sys/devices/virtual/block/loop0/trace:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 act_mask
-rw-r--r--.  1 root root 65536 Nov 16 12:18 enable
-rw-r--r--.  1 root root 65536 Nov 16 12:18 end_lba
-rw-r--r--.  1 root root 65536 Nov 16 12:18 pid
-rw-r--r--.  1 root root 65536 Nov 16 12:18 start_lba

/sys/devices/virtual/block/loop1:
total 0
drwxr-xr-x. 10 root root     0 Nov 16 12:18 .
drwxr-xr-x.  7 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 alignment_offset
-rw-r--r--.  1 root root 65536 Nov 16 12:18 badblocks
lrwxrwxrwx.  1 root root     0 Nov 16 12:18 bdi -> ../../bdi/7:1
-r--r--r--.  1 root root 65536 Nov 16 12:18 capability
-r--r--r--.  1 root root 65536 Nov 16 12:18 dev
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_alignment
-r--r--r--.  1 root root 65536 Nov 16 12:18 ext_range
drwxr-xr-x.  2 root root     0 Nov 16 12:18 holders
-r--r--r--.  1 root root 65536 Nov 16 12:18 inflight
drwxr-xr-x.  2 root root     0 Nov 16 12:18 integrity
drwxr-xr-x.  2 root root     0 Nov 16 12:18 loop
drwxr-xr-x.  3 root root     0 Nov 16 12:18 mq
drwxr-xr-x.  2 root root     0 Nov 16 12:18 power
drwxr-xr-x.  2 root root     0 Nov 16 12:18 queue
-r--r--r--.  1 root root 65536 Nov 16 12:18 range
-r--r--r--.  1 root root 65536 Nov 16 12:18 removable
-r--r--r--.  1 root root 65536 Nov 16 12:18 ro
-r--r--r--.  1 root root 65536 Nov 16 12:18 size
drwxr-xr-x.  2 root root     0 Nov 16 12:18 slaves
-r--r--r--.  1 root root 65536 Nov 16 12:18 stat
lrwxrwxrwx.  1 root root     0 Nov 16 12:18 subsystem -> ../../../../class/block
drwxr-xr-x.  2 root root     0 Nov 16 12:18 trace
-rw-r--r--.  1 root root 65536 Nov 16 12:18 uevent

/sys/devices/virtual/block/loop1/holders:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 dm-0 -> ../../dm-0
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 dm-1 -> ../../dm-1

/sys/devices/virtual/block/loop1/integrity:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 device_is_integrity_capable
-r--r--r--.  1 root root 65536 Nov 16 12:18 format
-r--r--r--.  1 root root 65536 Nov 16 12:18 protection_interval_bytes
-rw-r--r--.  1 root root 65536 Nov 16 12:18 read_verify
-r--r--r--.  1 root root 65536 Nov 16 12:18 tag_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 write_generate

/sys/devices/virtual/block/loop1/loop:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 autoclear
-r--r--r--.  1 root root 65536 Nov 16 12:18 backing_file
-r--r--r--.  1 root root 65536 Nov 16 12:18 dio
-r--r--r--.  1 root root 65536 Nov 16 12:18 offset
-r--r--r--.  1 root root 65536 Nov 16 12:18 partscan
-r--r--r--.  1 root root 65536 Nov 16 12:18 sizelimit

/sys/devices/virtual/block/loop1/mq:
total 0
drwxr-xr-x.  3 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..
drwxr-xr-x.  4 root root 0 Nov 16 12:18 0

/sys/devices/virtual/block/loop1/mq/0:
total 0
drwxr-xr-x. 4 root root     0 Nov 16 12:18 .
drwxr-xr-x. 3 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 active
drwxr-xr-x. 2 root root     0 Nov 16 12:18 cpu0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 cpu1
-r--r--r--. 1 root root 65536 Nov 16 12:18 cpu_list
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 io_poll
-r--r--r--. 1 root root 65536 Nov 16 12:18 pending
-r--r--r--. 1 root root 65536 Nov 16 12:18 queued
-r--r--r--. 1 root root 65536 Nov 16 12:18 run
-r--r--r--. 1 root root 65536 Nov 16 12:18 tags

/sys/devices/virtual/block/loop1/mq/0/cpu0:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 4 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 completed
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 merged
-r--r--r--. 1 root root 65536 Nov 16 12:18 rq_list

/sys/devices/virtual/block/loop1/mq/0/cpu1:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 4 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 completed
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 merged
-r--r--r--. 1 root root 65536 Nov 16 12:18 rq_list

/sys/devices/virtual/block/loop1/power:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 async
-rw-r--r--.  1 root root 65536 Nov 16 12:18 autosuspend_delay_ms
-rw-r--r--.  1 root root 65536 Nov 16 12:18 control
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_active_kids
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_active_time
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_enabled
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_status
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_suspended_time
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_usage

/sys/devices/virtual/block/loop1/queue:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 add_random
-r--r--r--.  1 root root 65536 Nov 16 12:18 dax
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_granularity
-rw-r--r--.  1 root root 65536 Nov 16 12:18 discard_max_bytes
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_max_hw_bytes
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_zeroes_data
-r--r--r--.  1 root root 65536 Nov 16 12:18 hw_sector_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 io_poll
-rw-r--r--.  1 root root 65536 Nov 16 12:18 iostats
-r--r--r--.  1 root root 65536 Nov 16 12:18 logical_block_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_hw_sectors_kb
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_integrity_segments
-rw-r--r--.  1 root root 65536 Nov 16 12:18 max_sectors_kb
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_segment_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_segments
-r--r--r--.  1 root root 65536 Nov 16 12:18 minimum_io_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 nomerges
-rw-r--r--.  1 root root 65536 Nov 16 12:18 nr_requests
-r--r--r--.  1 root root 65536 Nov 16 12:18 optimal_io_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 physical_block_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 read_ahead_kb
-rw-r--r--.  1 root root 65536 Nov 16 12:18 rotational
-rw-r--r--.  1 root root 65536 Nov 16 12:18 rq_affinity
-rw-r--r--.  1 root root 65536 Nov 16 12:18 scheduler
-rw-r--r--.  1 root root 65536 Nov 16 12:18 write_cache
-r--r--r--.  1 root root 65536 Nov 16 12:18 write_same_max_bytes

/sys/devices/virtual/block/loop1/slaves:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..

/sys/devices/virtual/block/loop1/trace:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 act_mask
-rw-r--r--.  1 root root 65536 Nov 16 12:18 enable
-rw-r--r--.  1 root root 65536 Nov 16 12:18 end_lba
-rw-r--r--.  1 root root 65536 Nov 16 12:18 pid
-rw-r--r--.  1 root root 65536 Nov 16 12:18 start_lba

/sys/devices/virtual/block/loop2:
total 0
drwxr-xr-x. 10 root root     0 Nov 16 12:18 .
drwxr-xr-x.  7 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 alignment_offset
-rw-r--r--.  1 root root 65536 Nov 16 12:18 badblocks
lrwxrwxrwx.  1 root root     0 Nov 16 12:18 bdi -> ../../bdi/7:2
-r--r--r--.  1 root root 65536 Nov 16 12:18 capability
-r--r--r--.  1 root root 65536 Nov 16 12:18 dev
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_alignment
-r--r--r--.  1 root root 65536 Nov 16 12:18 ext_range
drwxr-xr-x.  2 root root     0 Nov 16 12:18 holders
-r--r--r--.  1 root root 65536 Nov 16 12:18 inflight
drwxr-xr-x.  2 root root     0 Nov 16 12:18 integrity
drwxr-xr-x.  2 root root     0 Nov 16 12:18 loop
drwxr-xr-x.  3 root root     0 Nov 16 12:18 mq
drwxr-xr-x.  2 root root     0 Nov 16 12:18 power
drwxr-xr-x.  2 root root     0 Nov 16 12:18 queue
-r--r--r--.  1 root root 65536 Nov 16 12:18 range
-r--r--r--.  1 root root 65536 Nov 16 12:18 removable
-r--r--r--.  1 root root 65536 Nov 16 12:18 ro
-r--r--r--.  1 root root 65536 Nov 16 12:18 size
drwxr-xr-x.  2 root root     0 Nov 16 12:18 slaves
-r--r--r--.  1 root root 65536 Nov 16 12:18 stat
lrwxrwxrwx.  1 root root     0 Nov 16 12:18 subsystem -> ../../../../class/block
drwxr-xr-x.  2 root root     0 Nov 16 12:18 trace
-rw-r--r--.  1 root root 65536 Nov 16 12:18 uevent

/sys/devices/virtual/block/loop2/holders:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..
lrwxrwxrwx.  1 root root 0 Nov 16 12:18 dm-0 -> ../../dm-0

/sys/devices/virtual/block/loop2/integrity:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 device_is_integrity_capable
-r--r--r--.  1 root root 65536 Nov 16 12:18 format
-r--r--r--.  1 root root 65536 Nov 16 12:18 protection_interval_bytes
-rw-r--r--.  1 root root 65536 Nov 16 12:18 read_verify
-r--r--r--.  1 root root 65536 Nov 16 12:18 tag_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 write_generate

/sys/devices/virtual/block/loop2/loop:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-r--r--r--.  1 root root 65536 Nov 16 12:18 autoclear
-r--r--r--.  1 root root 65536 Nov 16 12:18 backing_file
-r--r--r--.  1 root root 65536 Nov 16 12:18 dio
-r--r--r--.  1 root root 65536 Nov 16 12:18 offset
-r--r--r--.  1 root root 65536 Nov 16 12:18 partscan
-r--r--r--.  1 root root 65536 Nov 16 12:18 sizelimit

/sys/devices/virtual/block/loop2/mq:
total 0
drwxr-xr-x.  3 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..
drwxr-xr-x.  4 root root 0 Nov 16 12:18 0

/sys/devices/virtual/block/loop2/mq/0:
total 0
drwxr-xr-x. 4 root root     0 Nov 16 12:18 .
drwxr-xr-x. 3 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 active
drwxr-xr-x. 2 root root     0 Nov 16 12:18 cpu0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 cpu1
-r--r--r--. 1 root root 65536 Nov 16 12:18 cpu_list
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 io_poll
-r--r--r--. 1 root root 65536 Nov 16 12:18 pending
-r--r--r--. 1 root root 65536 Nov 16 12:18 queued
-r--r--r--. 1 root root 65536 Nov 16 12:18 run
-r--r--r--. 1 root root 65536 Nov 16 12:18 tags

/sys/devices/virtual/block/loop2/mq/0/cpu0:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 4 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 completed
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 merged
-r--r--r--. 1 root root 65536 Nov 16 12:18 rq_list

/sys/devices/virtual/block/loop2/mq/0/cpu1:
total 0
drwxr-xr-x. 2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 4 root root     0 Nov 16 12:18 ..
-r--r--r--. 1 root root 65536 Nov 16 12:18 completed
-r--r--r--. 1 root root 65536 Nov 16 12:18 dispatched
-r--r--r--. 1 root root 65536 Nov 16 12:18 merged
-r--r--r--. 1 root root 65536 Nov 16 12:18 rq_list

/sys/devices/virtual/block/loop2/power:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 async
-rw-r--r--.  1 root root 65536 Nov 16 12:18 autosuspend_delay_ms
-rw-r--r--.  1 root root 65536 Nov 16 12:18 control
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_active_kids
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_active_time
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_enabled
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_status
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_suspended_time
-r--r--r--.  1 root root 65536 Nov 16 12:18 runtime_usage

/sys/devices/virtual/block/loop2/queue:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 add_random
-r--r--r--.  1 root root 65536 Nov 16 12:18 dax
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_granularity
-rw-r--r--.  1 root root 65536 Nov 16 12:18 discard_max_bytes
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_max_hw_bytes
-r--r--r--.  1 root root 65536 Nov 16 12:18 discard_zeroes_data
-r--r--r--.  1 root root 65536 Nov 16 12:18 hw_sector_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 io_poll
-rw-r--r--.  1 root root 65536 Nov 16 12:18 iostats
-r--r--r--.  1 root root 65536 Nov 16 12:18 logical_block_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_hw_sectors_kb
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_integrity_segments
-rw-r--r--.  1 root root 65536 Nov 16 12:18 max_sectors_kb
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_segment_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 max_segments
-r--r--r--.  1 root root 65536 Nov 16 12:18 minimum_io_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 nomerges
-rw-r--r--.  1 root root 65536 Nov 16 12:18 nr_requests
-r--r--r--.  1 root root 65536 Nov 16 12:18 optimal_io_size
-r--r--r--.  1 root root 65536 Nov 16 12:18 physical_block_size
-rw-r--r--.  1 root root 65536 Nov 16 12:18 read_ahead_kb
-rw-r--r--.  1 root root 65536 Nov 16 12:18 rotational
-rw-r--r--.  1 root root 65536 Nov 16 12:18 rq_affinity
-rw-r--r--.  1 root root 65536 Nov 16 12:18 scheduler
-rw-r--r--.  1 root root 65536 Nov 16 12:18 write_cache
-r--r--r--.  1 root root 65536 Nov 16 12:18 write_same_max_bytes

/sys/devices/virtual/block/loop2/slaves:
total 0
drwxr-xr-x.  2 root root 0 Nov 16 12:18 .
drwxr-xr-x. 10 root root 0 Nov 16 12:18 ..

/sys/devices/virtual/block/loop2/trace:
total 0
drwxr-xr-x.  2 root root     0 Nov 16 12:18 .
drwxr-xr-x. 10 root root     0 Nov 16 12:18 ..
-rw-r--r--.  1 root root 65536 Nov 16 12:18 act_mask
-rw-r--r--.  1 root root 65536 Nov 16 12:18 enable
-rw-r--r--.  1 root root 65536 Nov 16 12:18 end_lba
-rw-r--r--.  1 root root 65536 Nov 16 12:18 pid
-rw-r--r--.  1 root root 65536 Nov 16 12:18 start_lba
