Package: btrfs-progs Version: 5.14.1-1 After upgrading from btrfs-progs 5.7-1 with Linux kernel 5.7.6 to btrfs-progs 5.14.1-1 with Linux kernel 5.14.9-2 (from current testing) I see the following strange new warning when deleting the subvolume as non-root user (the filesystem is mounted with user_subvol_rm_allowed):
WARNING: cannot read default subvolume id: Operation not permitted The subvolume deletion succeeds. To reproduce, mount a btrfs filesystem with user_subvol_rm_allowed, say, on /mnt and then (assuming non-root user is called nonroot): # chown nonroot:nonroot /mnt # su - nonroot $ cd /mnt $ btrfs subvol create test Create subvolume './test' $ btrfs subvol delete test WARNING: cannot read default subvolume id: Operation not permitted Delete subvolume (no-commit): '/mnt/test' Any idea what's going on here and how to get rid of this warning? It adds quite a bit of noise to our logs.
