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1 E2fsprogs 1.47.0 (February 5, 2023)

2 ===================================

4 Updates/Fixes since v1.46.6:

6 UI and Features

7 ---------------

9 Add support for the orphan_file feature, which speeds up workloads that

10 are deleting or truncating a large number files in parallel. This

11 compat feature was first supported in the v5.15 Linux kernel.

13 The mke2fs program (via the mke2fs.conf file) now enables the

14 metadata_csum_seed and orphan_file features by default. The

15 metadata_csum_seed feature is an incompat feature which is first

16 supported in the Linux kernel starting in the 4.4 kernel and e2fsprogs

17 1.43.

19 Mke2fs now supports the extended option "assume_storage_prezeroed" which

20 causes mke2fs to skip zeroing the journal and inode tables and to mark

21 the inode tables as zeroed.

23 Add support to tune2fs and e2label to set the label and UUID for a

24 mounted file system using a ioctl, which is more reliable than modifying

25 the superblock via writing to the block device. The kernel support for

26 setting the label landed in v5.17, while the support for adding the UUID

27 landed in v6.0. If the ioctls are not supported, tune2fs and e2label

28 will fall back old strategy of directly modifying the superblock.

30 Allow tune2fs to disable the casefold feature after scanning all of the

31 directories do not have the Casefold flag set.

34 Fixes

35 -----

37 Fix a potential unbalanced mutex unlock when there is a short read while

38 using the bounce buffer when using direct I/O.

41 Performance, Internal Implementation, Development Support etc.

42 --------------------------------------------------------------

44 Fix various Coverity and compiler warnings.

46 Add the new function ext2fs_xattrs_read_inode() which takes an in-memory

47 inode to avoid needing to reread an inode that was already read into

48 memory.

50 Teach debugfs logdump command the -n option which forces printing a

51 specified number of transactions, even when a block missing a magic

52 number would have stopped the logdump. (This is for debugging

53 journalling problems.)