Re: review: Simple patch to remove the dmapi support from xfsdump

[Russell Cattelan <cattelan@xxxxxxxxxxx>]

Bill Kendall wrote:

[snip]
> 3) Add make_handle() routine to libhandle. xfsdump's only dependencies
> from libdm are dm_make_handle() and dm_handle_to_fsid() (the latter
> of which is in libhandle as handle_to_fshandle(), I think).
Hmm looking at dm_handle_to_fsid: it calls parse_handle which appears
be quite dmapi specific and would require much of dm_handle.c?

I suppose we could move dm_handle.c into  libhandle ?
But that seems to be going in the wrong direction in terms of
correct code compartmentalization.

Since dmapi is only available  on Suse , Propack and somebody doing
a custom kernel, I'm not convinced that xfs dump/restore should
support dmapi no matter what.
The only time a problem might arise is somebody not using the shipped 
version
of xfs dump/restore on a Suse or propack system, in which case they
should either know what they are doing or get what they deserve.

> 4) Noop the existing hsm routines, and allow xfsdump to dlopen a
> specified .so to override the default (noop) behavior. DMF could
> then ship a .so implementing those functions.
>
> Bill