- Update to 1.47.0:
* Add support for the orphan_file feature, which speeds up workloads
that are deleting or truncating a large number files in parallel.
This compat feature was first supported in the v5.15 Linux kernel.
* The mke2fs program (via the mke2fs.conf file) now enables the
metadata_csum_seed and orphan_file features by default.
The metadata_csum_seed feature is an incompat feature which is
first supported in the Linux kernel starting in the 4.4 kernel.
* Mke2fs now supports the extended option "assume_storage_prezeroed"
which causes mke2fs to skip zeroing the journal and inode tables
and to mark the inode tables as zeroed.
* Add support to tune2fs and e2label to set the label and UUID for
a mounted file system using a ioctl, which is more reliable than
modifying the superblock via writing to the block device.
The kernel support for setting the label landed in v5.17, while
the support for adding the UUID landed in v6.0. If the ioctls
are not supported, tune2fs and e2label will fall back old
strategy of directly modifying the superblock.
* Allow tune2fs to disable the casefold feature after scanning all
of the directories do not have the Casefold flag set.