Re: [Xen-devel] Is: Discussion about doing it in Xen 4.5 or Xen 4.6 Was:Re: [PATCH] tools: remove blktap1

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Tue, Nov 04, 2014 at 06:45:12PM +0000, Andrew Cooper wrote:
> On 04/11/14 18:42, Konrad Rzeszutek Wilk wrote:
> > On Tue, Nov 04, 2014 at 06:07:19PM +0000, Andrew Cooper wrote:
> >> On 04/11/14 17:32, Konrad Rzeszutek Wilk wrote:
> >>> On Tue, Nov 04, 2014 at 11:52:47AM +0000, Ian Campbell wrote:
> >>>> This was disabled by default in Xen 4.4. Since xend has now been removed 
> >>>> from
> >>>> the tree I don't believe anything is using it.
> >>> What about XenServer?
> >> We are most definitely not using it, and havenât used it in a very long
> >> time. We explicitly nuke BLKTAP1 and BLKTAP2 from the Xen build.
> >>
> >>> And isn't there some blktap3 ?
> >> https://github.com/xapi-project/blktap
> >>
> >>>> We need to pass an explicit CONFIG_BLKTAP1=n to qemu-xen-traditional 
> >>>> otherwise
> >>>> it defaults to y and doesn't build.
> >>>>
> >>>> Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> >>>> Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> >>>> ---
> >>>> I think this has probably missed the boat for 4.5 and there isn't much 
> >>>> harm in
> >>>> waiting for 4.6. I'm open to being told otherwise though ;-)
> >>> You really want to be at the top of the commit list with the most deleted
> >>> code, eh?
> >> /me suspects that he is already, but I for one am a fan of pruning dead
> >> code.
> > True, but we did talk about xend removal for quite a while before doing it.
> >
> > However, I believe that the folks that did Remus look to be using it
> > (And they have tons of patches against it).
> >
> >
> >    It is unclear to me whether they:
> >     - want to be the maintainers of it?
> >     - want to use blktap3 but haven't yet backported their patches.
> 
> The remus patches are against blktap2, not blktap1.  We currently have
> both in-tree.

<slaps his head>

OK, so blktap1 - dead. That looks like it could go under the knife now.

blktap2 - waiting for response

Is the long-term idea to put 'blktap3' in the tree?

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