Wez Furlong 3bee7ea2cc fixup root cause of ESTALE ... Summary: Thanks to some bpf tracing by strager, we traced the ESTALE response to `d_splice_alias` and noted this comment above the implementation in the kernel: > If a non-IS_ROOT directory is found, the filesystem is corrupt, and > we should error out: directories can't have multiple aliases. Well, our magic `.eden` directory is a directory with aliases and we were seeing the error trigger on that dir. So, this diff replaces hardlinking directories into each tree with a hardlink to a symlink in each tree! At mount time we create `.eden/this-dir` as a symlink to `/abs/path/to/mount/.eden` so that `readlink("/abs/path/to/mount/sub/dir/.eden/socket")` still resolves as it did prior to this diff. Reviewed By: strager Differential Revision: D12954819 fbshipit-source-id: 7f3b1b53f2bd5b9c51e64055fc34110657a19110		2018-11-07 15:20:58 -08:00
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types	fixup root cause of ESTALE	2018-11-07 15:20:58 -08:00
gen_snapshot.py	update gen_snapshot to use xz compression by default	2018-10-11 19:03:35 -07:00
snapshot.py	add code to test saved snapshots	2018-10-31 12:10:27 -07:00
test_snapshots.py	add code to test saved snapshots	2018-10-31 12:10:27 -07:00
verify.py	add code to test saved snapshots	2018-10-31 12:10:27 -07:00