Re: [PATCH 01/33] TCMU PR: first commit to implement TCMU PR

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On Mon, Jun 18, 2018 at 01:41:48PM +0200, David Disseldorp wrote:
> On Mon, 18 Jun 2018 04:12:17 -0700, Christoph Hellwig wrote:
> 
> > On Sun, Jun 17, 2018 at 12:40:56PM +0800, Zhu Lingshan wrote:
> > > Hello Mike and Christoph,
> > > Thanks Mike's comment inspired me, if I understand this correctly, it is
> > > suggested to implement this whole solution in kernel, avoid
> > >  splitting PRG handling in both kernel and userspace, make it not that
> > > complex. I can try to implement this by sending OSD requests
> > > from kernel side, then we don't need tcmu-runner supporting is, no need to
> > > use netlink to exchange information with userspace, pure kernel code, seems
> > > much more simple. Do you think this may be better?  
> > 
> > Yes.  And SuSE actually ships such a backend (originally writen by
> > Mike), although it would still need some work to get into shape.
> 
> FWIW, the kernel backend is also shipped by petasan. I'd be happy to
> restart efforts with Mike to get this in shape for mainline.

That would be great!



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