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

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

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.

~Andrew

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