SRU e2fsprogs v1.47.0 for HWE reasons

[Dimitri John Ledkov]

[ Impact ]

 * orphan_file ext4 feature is available in Jammy v5.15 GA kernel
 * It is to be enabled by default in Mantic
 * fsck utility in jammy doesn't support orphan_file feature
 * as part of forwards-compatibility support it would be useful for Jammy 22.04 LTS to be able to fsck future releases (i.e. 23.10 / 24.04)
 * as part of HWE support, users may opt-in and choose to use orphan_file in Jammy today, when they do so they currently loose support to fsck a given filesystem.

[ Test Plan ]

 * Create new ext4 filesystem with GA version of e2fsprogs and with proposed one
 * Ensure that default feature set enabled is the same (i.e. orphan_file & metadata_csum features are OFF)
 * Ensure that either fsck can fsck both filesystems
 * Use tune2fs to enable orphan_file feature
 * Ensure that new fsck can check such a filesystem, and that GA (v5.15) kernel can mount it

 * do test rebuilds of reverse-build-depends of e2fsprogs to verify to change of API and ABI, none should FTBFS and none should gain any new dependencies on the 1.47 symbols

[ Where problems could occur ]

 * library api/abi changes:

struct ext2_super_block size is unchanged, s_orphan_file_inum consumes one of the s_reserved fields.

orphan_file related public APIs are added.

 * default features:

Ensure that config files are unchanged, to ensure that no new features are enabled by default, meaning filesystems created with the upgraded e2fsprogs in a given Ubuntu release will keep the same feature level.

[ Other Info ]

 * Anything else you think is useful to include
 * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board
 * and address these questions in advance

[Utkarsh Gupta (utkarsh)]

Ubuntu 22.10 (Kinetic Kudu) has reached end of life, so this bug will not be fixed for that specific release.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Amit B (ab2023)]

++ https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/2025176

[Brian Murray (brian-murray)]

Ubuntu 23.04 (Lunar Lobster) has reached end of life, so this bug will not be fixed for that specific release.