gistfile1.txt

root@linus-xfs-nocrc-2k /var/lib/xfstests # du -hs /media/sparsefiles/sparse-disk*
0       /media/sparsefiles/sparse-disk10
0       /media/sparsefiles/sparse-disk11
0       /media/sparsefiles/sparse-disk12
0       /media/sparsefiles/sparse-disk13
0       /media/sparsefiles/sparse-disk14
132M    /media/sparsefiles/sparse-disk15
65M     /media/sparsefiles/sparse-disk16
65M     /media/sparsefiles/sparse-disk5
0       /media/sparsefiles/sparse-disk6
0       /media/sparsefiles/sparse-disk7
0       /media/sparsefiles/sparse-disk8
0       /media/sparsefiles/sparse-disk9
root@linus-xfs-nocrc-2k /var/lib/xfstests # mount | grep media
/dev/vdc on /media/sparsefiles type btrfs (rw,relatime,discard=async,noacl,space_cache=v2,subvolid=5,subvol=/)
root@linus-xfs-nocrc-2k /var/lib/xfstests # xfs_info /dev/loop16
meta-data=/dev/loop16            isize=256    agcount=4, agsize=2621440 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=0        finobt=0, sparse=0, rmapbt=0
         =                       reflink=0    bigtime=0 inobtcount=0 nrext64=0
data     =                       bsize=2048   blocks=10485760, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=2048   blocks=32768, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0