[PATCH v4 0/8] Extend idmapped mount testsuite

[Christian Brauner <brauner@kernel.org>]

From: Christian Brauner <christian.brauner@ubuntu.com>

Hey everyone,

This is v4 with only a minimal change to getopt_long_only(). The rest is
identical. In v3 the changes requested by Christoph and his Reviewed-bys
added. I've also added Josef's Reviewed-by for the newly added btrfs
specific idmapped mount testsuite. There are no major changes to v2.

This time around I've put everyone in To: to make sure that they receive
all patches. The list apparently still refues patches if they are fairly
huge. The series can be pulled from three locations:

git@gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/xfstests-dev fs.idmapped.nested_userns
git@gitlab.com:brauner/xfstests.git fs.idmapped.nested_userns
git@github.com:brauner/xfstests.git fs.idmapped.nested_userns

This adds three new tests:
- a regression test for vfs capabilities
- a new test with nested and complex idmapping layouts
- a new btrfs specific idmapped mount testsuite

Since v2 patches to support idmapped mounts on btrfs have been merged
into btrfs' for-next tree:
https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git/commit/?h=for-next&id=f691ae1e0bc591df5e9897387d726adbb440fc4c
and so are on track to be included for v5.15.  I'd like to get the btrfs
tests merged now so linux-next can be tested with the them. I hope
that's ok.

I ran:
git rebase -i -x "make -j4 clean && make -j4 && sudo ./check -g idmapped" HEAD~8
on the whole series. Everthing passes.

Thanks!
Christian

Christian Brauner (8):
  idmapped-mounts: use die() helper
  idmapped-mounts: switch to getopt_long_only()
  idmapped-mounts: introduce an explicit command line switch for
    testsuite
  generic/640: add fscaps regression test
  idmapped-mounts: refactor helpers
  idmapped-mounts: add nested userns creation helpers
  generic/641: add nested user namespace tests
  btrfs/244: introduce btrfs specific idmapped mounts tests

 configure.ac                          |   10 +-
 src/idmapped-mounts/idmapped-mounts.c | 4747 ++++++++++++++++++++++++-
 src/idmapped-mounts/mount-idmapped.c  |  229 +-
 src/idmapped-mounts/utils.c           |  359 +-
 src/idmapped-mounts/utils.h           |  102 +-
 tests/btrfs/244                       |   34 +
 tests/btrfs/244.out                   |    2 +
 tests/generic/633                     |    3 +-
 tests/generic/640                     |   28 +
 tests/generic/640.out                 |    2 +
 tests/generic/641                     |   28 +
 tests/generic/641.out                 |    2 +
 12 files changed, 5231 insertions(+), 315 deletions(-)
 create mode 100755 tests/btrfs/244
 create mode 100644 tests/btrfs/244.out
 create mode 100755 tests/generic/640
 create mode 100644 tests/generic/640.out
 create mode 100755 tests/generic/641
 create mode 100644 tests/generic/641.out


base-commit: dad0c0a852d1b10e7da285f29e99397dec0efec1
-- 
2.30.2