• Josef Bacik's avatar
    dm: add log writes target · 0e9cebe7
    Josef Bacik authored
    Introduce a new target that is meant for file system developers to test file
    system integrity at particular points in the life of a file system.  We capture
    all write requests and associated data and log them to a separate device
    for later replay.  There is a userspace utility to do this replay.  The
    idea behind this is to give file system developers a tool to verify that
    the file system is always consistent.
    Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
    Reviewed-by: default avatarZach Brown <zab@zabbo.net>
    Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
    0e9cebe7
dm-log-writes.c 20.4 KB