kernel 5.2.9
btrfs-progs 5.1.1
File system is pretty new, few months, has only seen kernels 5.1.16+
This is a bit curious. Three subvolumes, no snapshots, no reflinks.
There have previously been snapshots, typically prior to doing system
updates. Is this an example of extents being pinned due to snapshots,
and then extents updated and are now "stuck"? I'm kinda surprised, in
that I'd expect most programs, especially RPM, are writing out new
files entirely, then deleting obsolete files, then renaming. But...
this suggests something is doing partial overwrites of file extents
rather than replacements.
Any ideas?
$ ls -l
total 0
drwxr-xr-x. 1 root root 10 Jun 23 13:36 home
drwxr-xr-x. 1 root root 26 Jun 9 22:27 images
dr-xr-xr-x. 1 root root 144 Aug 22 13:49 root
$ sudo btrfs fi du -s *
Total Exclusive Set shared Filename
4.41GiB 4.39GiB 14.51MiB home
581.40MiB 552.04MiB 29.36MiB images
7.78GiB 7.77GiB 6.71MiB root
$
--
Chris Murphy
