[PATCH v3 0/2] btrfs-progs: make sure "mkfs --rootdir" copies all the attributes for the rootdir

[Qu Wenruo <wqu@suse.com>]

[CHANGELOG]
v3:
- Use 'stat()' instead pf 'lstate()' for the rootdir
  This would follow a softlink for the rootdir.

v2:
- Add more attributes to be copied for rootdir, including:
  * mode
  * uid
  * gid
  * timestamps

- Update the test case
  * Use two loopback devices
    One to store the source directory, so that we're ensured to have
    xattr support.
  * Add checks for all the uid/gid/mode attributes

We got a bug report that "mkfs.btrfs --rootdir" copies all the xattr but
the xattr of the source directory.

It turns out that we only do the regular xattr/gid/uid/mode/timestamps
copy for all the child inodes, not the source directory itself.

Fix it and create a test case for it.

Qu Wenruo (2):
  btrfs-progs: mkfs/rootdir: copy missing attributes for the rootdir
    inode
  btrfs-progs: tests/mkfs: make sure rootdir inode got its attributes
    copied

 mkfs/rootdir.c                             | 88 ++++++++++++++++------
 tests/mkfs-tests/027-rootdir-inode/test.sh | 60 +++++++++++++++
 2 files changed, 127 insertions(+), 21 deletions(-)
 create mode 100755 tests/mkfs-tests/027-rootdir-inode/test.sh

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2.42.0