Eryu,
This test should pass on upstream kernel.
It provides test coverage for a state of inode/dentry cache that
was not covered by previous tests.
I had to extend open_by_handle again to reproduce the uncovered
cache state.
Miklos,
I used tracing on index lookup with this test to verify correctness
of ("ovl: lookup in inode cache first when decoding lower file handle").
With your review fix, index lookup is called for non-dir after mount
cycle, but not called after opening by file handle again, when the
diconnected dentries are still in cache.
Thanks,
Amir.
Amir Goldstein (3):
open_by_handle: add -n option to suppress drop caches
open_by_handle: add -s option to sleep and keep files open by handle
overlay: test decoding overlay file handles with warm/cold dentry
cache
src/open_by_handle.c | 57 ++++++++++++++-------
tests/overlay/058 | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++
tests/overlay/058.out | 9 ++++
tests/overlay/group | 1 +
4 files changed, 186 insertions(+), 18 deletions(-)
create mode 100755 tests/overlay/058
create mode 100644 tests/overlay/058.out
--
2.7.4
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