Hi Eryu, This v2 post includes two more nested overlay tests. As described in previous post [1] the purpose of these tests is not so much to validate the setup of nested overlayfs, which is a less common setup, but to provide test coverage for some overlayfs fixes that were merge in v5.5-rc2 as well as some fixes that have been posted since. Specifically, test overlay/071 exercises a "nested xino setup". This setup results in "xino bit overlflow", a corner case that did not have test coverage until now. This test fails on current upstream because of an overlayfs bug [2]. On top of that, both overlay/070 and overlay/071 fail on current upstream, because of a /proc/locks format bug [3]. Thanks, Amir. [1] https://lore.kernel.org/fstests/20191221185149.17509-1-amir73il@xxxxxxxxx/ [2] https://marc.info/?l=linux-unionfs&m=157708323410613&w=2 [3] https://lore.kernel.org/linux-fsdevel/e5d1c0a5e5e92083d8ce0bc1e48194a6d70fb918.camel@xxxxxxxxxx/ Amir Goldstein (5): overlay: create the overlay/nested test group overlay: test file handles with nested overlay over samefs lower overlay: test file handles with nested overlay over non-samefs lower overlay: test constant ino with nested overlay over samefs lower overlay: test constant ino with nested overlay over non-samefs lower tests/overlay/068 | 304 ++++++++++++++++++++++++++++++++++++++++ tests/overlay/068.out | 50 +++++++ tests/overlay/069 | 313 ++++++++++++++++++++++++++++++++++++++++++ tests/overlay/069.out | 50 +++++++ tests/overlay/070 | 222 ++++++++++++++++++++++++++++++ tests/overlay/070.out | 2 + tests/overlay/071 | 236 +++++++++++++++++++++++++++++++ tests/overlay/071.out | 2 + tests/overlay/group | 8 +- 9 files changed, 1185 insertions(+), 2 deletions(-) create mode 100755 tests/overlay/068 create mode 100644 tests/overlay/068.out create mode 100755 tests/overlay/069 create mode 100644 tests/overlay/069.out create mode 100755 tests/overlay/070 create mode 100644 tests/overlay/070.out create mode 100755 tests/overlay/071 create mode 100644 tests/overlay/071.out -- 2.17.1
