[PATCH v4 00/10] erofs-utils: mkfs: introduce rebuild mode

[Jingbo Xu]

v4:
- patch 2: the original two v3 patches[1][2] are merged as patch 2; also update
  commit message
- patch 10: newly added; introduce "--keep-whiteout=[0|1]" option for
  tarfs and rebuild mode controlling whether whiteout files are kept in
  the generated image.
- patch 9: add documentation for tarfs and rebuild mode in the usage
  message of mkfs.erofs

[1] https://lore.kernel.org/all/20230822092457.114686-2-jefflexu@linux.alibaba.com/
[2] https://lore.kernel.org/all/20230822092457.114686-3-jefflexu@linux.alibaba.com/

v1: https://lore.kernel.org/all/20230814034239.54660-1-jefflexu@linux.alibaba.com/
v2: https://lore.kernel.org/all/20230816021347.126886-1-jefflexu@linux.alibaba.com/
v3: https://lore.kernel.org/all/20230822092457.114686-1-jefflexu@linux.alibaba.com/

-------------------------

Introduce a new rebuild mode merging multiple erofs images generated
from either tarerfs index mode (--tar=i):

	mkfs.erofs --tar=i --aufs layer0.erofs layer0.tar
	...
	mkfs.erofs --tar=i --aufs layerN.erofs layerN.tar

	mkfs.erofs merge.erofs layerN.erofs ... layer0.erofs

or tarerofs non-index mode (--tar=f):

	mkfs.erofs --tar=f -Enoinline_data --aufs layer0.erofs layer0.tar
	...
	mkfs.erofs --tar=f -Enoinline_data --aufs layerN.erofs layerN.tar

	mkfs.erofs merge.erofs layerN.erofs ... layer0.erofs



Jingbo Xu (10):
  erofs-utils: lib: fix dirent type of whiteout in tarerofs
  erofs-utils: lib: keep erofs_init_devices in sync with kernel
  erofs-utils: lib: add list_splice_tail() helper
  erofs-utils: lib: make erofs_get_unhashed_chunk() global
  erofs-utils: lib: add erofs_read_xattrs_from_disk() helper
  erofs-utils: lib: add erofs_insert_ihash() helper
  erofs-utils: lib: add erofs_rebuild_get_dentry() helper
  erofs-utils: lib: add erofs_rebuild_load_tree() helper
  erofs-utils: mkfs: introduce rebuild mode
  erofs-utils: mkfs: add --keep-whiteout option for tarfs and rebuild
    mode

 include/erofs/blobchunk.h |   2 +
 include/erofs/config.h    |   1 +
 include/erofs/inode.h     |   5 +-
 include/erofs/internal.h  |   6 +
 include/erofs/list.h      |  20 ++
 include/erofs/rebuild.h   |  21 +++
 include/erofs/xattr.h     |  33 +---
 lib/Makefile.am           |   3 +-
 lib/blobchunk.c           |   2 +-
 lib/config.c              |   1 +
 lib/inode.c               |  31 ++-
 lib/rebuild.c             | 388 ++++++++++++++++++++++++++++++++++++++
 lib/super.c               |   9 +-
 lib/tar.c                 | 119 +-----------
 lib/xattr.c               | 112 +++++++++++
 mkfs/main.c               | 221 +++++++++++++++++-----
 16 files changed, 772 insertions(+), 202 deletions(-)
 create mode 100644 include/erofs/rebuild.h
 create mode 100644 lib/rebuild.c

-- 
2.19.1.6.gb485710b