A suite of tools for manipulating the metadata of the dm-thin, dm-era
and dm-cache device-mapper targets.

Required by LVM2 to start and manage LVM volumes with above features.

Package contains also patch for Slackware's mkinitrd.
It's required if you want to boot from cached root partition.
To apply the patch run:

  cd /sbin ; patch -p0 < /usr/doc/thin-provisioning-tools-*/mkinitrd-1.4.X.patch

where X is the version of the currently installed mkinitrd.