to access, manage and manipulate device-mapper driver. Which opens us bunch
of new possibilities like
dm-multipath device target
dm-crypt device target
dm-ccd compatibility layer
With this import I'm bringing in dmctl tool for working with dm driver ,too.
I plan to replace gpl2 licensed dmsetup command with our dmctl tool in near
feature. It can also by placed to /rescue where we was not able to put
dmsetup because of licensing problems.
With libdm in tree we can now write RUMP atf test suite for dm driver to
ensure LVM subsystem stability as time goes.
Reviewed by: blymn@ and rmind@
Oked: by no objections on tech-userlevel@
