Re: libdm + dmctl import

[Adam Hamsik <haaaad%gmail.com@localhost>]

On Jan,Tuesday 25 2011, at 5:29 PM, haad wrote:

> Hi Folks,
> 
> I would like to import new library for device-mapper manipulation.
> It's called libdm [1].  As you probably know device-mapper is a
> kernel driver which is used in our LVM.
> With libdm we can work with dm driver without gpl2 tools. With [2]
> there will be 2 users of libdm in base
> 
> * libdevmapper will be converted to use libdm for dm communication
> * dmctl device-mapper administration utility
> * I plan to write dm driver rump atf tests with dmctl
> 
> dmctl program was written as replacement for gpl2 licensed dmsetup.
> It has same functionality than dmsetup and uses only libdm library.
> 
> In [1] there are 2 manual pages one for dmctl.8 and other one for
> libdm.3 they need some grama and mdoc fixes.
> 
> With libdm and dmctl in base we can use dm driver for many interesting
> things which do not need to be related to LVM.
> 
> * zoltan is working on deduplication target for dm
> * I have some patches which are replacing ccd driver with dm while user
>   can still used ccdconfig and other utilities.
> 
> Plus we can add dmctl to /rescue because it uses only BSD licensed
> code + we can remove one gpl2 licensed tool, dmsetup.
> 
> I would like to import libdm and dmctl to base this weekend.
> Do you have any suggestions, comments ?

Please have a look at [1] and [2] I will commit them tomorrow if no one will 
speak up.

[1] http://www.netbsd.org/~haad/libdm_libdevmapper-06022011.diff
[2] http://www.netbsd.org/~haad/libdm_patch-06022011.diff

Regards

Adam.