FM / loop0

/proc/fs/ext4/loop0

Name	Mode	Actions
es_shrinker_info	0444	edit dl rm
fc_info	0444	edit dl rm
mb_groups	0444	edit dl rm
mb_stats	0444	edit dl rm
mb_structs_summary	0444	edit dl rm
options	0444	edit dl rm

Edit: /proc/fs/ext4/loop0/es_shrinker_info (0B)

stats: 16 objects 16 reclaimable objects 238289/1471038 cache hits/misses 14 inodes on list average: 8 us scan time 15 shrunk objects maximum: 2 inode (2 objects, 2 reclaimable) 11 us max scan time