md_monitor: move logging functions into separate header file

Signed-off-by: Hannes Reinecke <hare@suse.de>
md_monitor: separate out dasd ioctl functions

Separate out dasd ioctl functions into a file.

Signed-off-by: Hannes Reinecke <hare@suse.de>
setdasd: program to set and unset DASD ioctl flags

Add new program to set and unset DASD ioctl flags.

Signed-off-by: Hannes Reinecke <hare@suse.de>
setdasd: add quiesce/resume support

Add support for quiesce/resume ioctl.

Signed-off-by: Hannes Reinecke <hare@suse.de>
setdasd: Add manual page

Signed-off-by: Hannes Reinecke <hare@suse.de>