Re: [systemd-devel] [PATCH] rules: block - add dm devices to whitelist

[David Disseldorp <ddiss@suse.de>]

On Mon, 10 Jul 2017 12:47:24 +0200, Peter Rajnoha wrote:

> On 07/10/2017 12:14 PM, Peter Rajnoha wrote:
...
> > Yes, please, any rules for symlinks which should be created under
> > /dev/disk for DM devices (including all its subsystems like LVM,
> > mpath...) should go into 13-dm-disk.rules that is part of LVM/DM source
> > tree:
> > 
> > https://sourceware.org/git/?p=lvm2.git;a=blob;f=udev/13-dm-disk.rules.in
> > 
> > Now, when we create a partition over a DM device, there's a new mapping
> > created on top for each partition (either by calling kpartx manually or
> > by having it created by partitioning tool directly if it supports that).
> > So in this case, it's not the kernel directly who creates the
> > partitions, but they're simply another DM devices created on top of the
> > underlying DM device to represent these partitions. But I think that
> > doesn't matter - we should still create those symlinks for people to
> > still have a possibility to reference the device by its part uuid - I'll
> > fix 13-dm-disk.rules to include this.
> >   
> 
> Fixed here:
> 
> https://sourceware.org/git/?p=lvm2.git;a=commit;h=c48149cf80c6582c2369bc7f8a33d794021d9dae

Looks good and works for me - thanks Peter.

Cheers, David