On Wed, 28 Jul 2021, Wang Yugui wrote: > Hi, > > This patchset works well in 5.14-rc3. Thanks for testing. > > 1, fixed dummy inode(255, BTRFS_FIRST_FREE_OBJECTID - 1 ) is changed to > dynamic dummy inode(18446744073709551358, or 18446744073709551359, ...) The BTRFS_FIRST_FREE_OBJECTID-1 was a just a hack, I never wanted it to be permanent. The new number is ULONG_MAX - subvol_id (where subvol_id starts at 257 I think). This is a bit less of a hack. It is an easily available number that is fairly unique. > > 2, btrfs subvol mount info is shown in /proc/mounts, even if nfsd/nfs is > not used. > /dev/sdc btrfs 94G 3.5M 93G 1% /mnt/test > /dev/sdc btrfs 94G 3.5M 93G 1% /mnt/test/sub1 > /dev/sdc btrfs 94G 3.5M 93G 1% /mnt/test/sub2 > > This is a visiual feature change for btrfs user. Hopefully it is an improvement. But it is certainly a change that needs to be carefully considered. Thanks, NeilBrown
