overlay: add unionmount tests with nested overlay

These tests use an overlay mount as lower layer for a nested overlay.
That provides test coverage for a lower layer with null uuid and
lower layer with real inode numbers that use the high xino bits.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Amir Goldstein
2020-05-31 14:01:56 +03:00
committed by Eryu Guan
parent da3796a56f
commit 41bd77b43a
17 changed files with 344 additions and 0 deletions
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QA output created by 112
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