help [ command ]
Display a brief description of one or all commands.
print Display a list of all open files and memory mapped
regions. The current file and current mapping are
distinguishable from any others.
p See the print command.
quit Exit xfs_io.
q See the quit command.
log_writes -d device -m mark
Create a mark named mark in the dm-log-writes log
specified by device. This is intended to be equivalent to
the shell command:
dmsetup message device 0 mark mark
lw See the log_writes command.
crc32cselftest
Test the internal crc32c implementation to make sure that
it computes results correctly.
