Eryu, This series enhances test coverage for generic NFS file handles encode/decode functionality and adds a new gereric/exportfs test. Please note that the new test output includes the temporary test number 500, so don't forget to fix those when renaming the test. The enhanced open_by_handle program is going to be used later on for overlayfs specific exportfs tests [1]. The open_by_handle program is limited to encoding "non-connectable" file handles (used by nfsd on 'no_subtree_check' exports), because there is no user available API (that I know of) to encode a "connecctable" file handle (used by nfsd on 'subtree_check' exports). I used a test patch "test connectable file handles", available on my tree [1] to tun the tests with "connectable" file handles. I verified that the new test passes on xfs, ext4, ext2, btrfs, f2fs. However, the test fails on tmpfs due to: "open_by_handle() returned 116 incorrectly on an unlinked open file!" This happens because tmpfs uses d_find_alias() to get a decoded dentry, but d_find_alias() skips unhashed (deleted with refcount) dentries. I don't know if being able to decode a file handle of a deleted but open file is a requirement for nfsd or just a recommendation, but IMO it is a common case that is worth testing, even if tmpfs (or other file systems) choose not to fix this. Bruce, Jeff, What is your view on this issue? Thanks, Amir. [1] https://github.com/amir73il/xfstests/commits/ovl-nfs-export [2] https://github.com/amir73il/linux/commits/ovl-nfs-export-v1 Amir Goldstein (7): open_by_handle: add filename to error reports open_by_handle: test file handles of renamed files open_by_handle: test content of open file handle open_by_handle: test directory file handle open_by_handle: test file handles of open files generic/426: factor out helper functions fstests: add test with more open by file handle use cases src/open_by_handle.c | 247 ++++++++++++++++++++++++++++++++++++++++++++------ tests/generic/426 | 40 +++++--- tests/generic/426.out | 4 + tests/generic/500 | 119 ++++++++++++++++++++++++ tests/generic/500.out | 10 ++ tests/generic/group | 1 + 6 files changed, 383 insertions(+), 38 deletions(-) create mode 100755 tests/generic/500 create mode 100644 tests/generic/500.out -- 2.7.4
