A FUSE filesystem that mirrors operations and checks for consistency. mirrorfs ensures that the results of operations are exactly the same, e.g., system call results, errnos, stat structs, read buffers. This can help test an in-development filesystem against a known good one, e.g., ext4.
make then run via:
./mirrorfs GOOD_PATH TESTING_PATH MOUNT_PATH
If you provide the
-f option mirrorfs will start in the foreground and log
its operations. Now programs can interact with
MOUNT_PATH as usual. When
mirrorfs detects an inconsistency it will log the diverging result and abort.
Copyright (C) 2019 Andrew Gaul
Licensed under the MIT License