Re: Wait queue support for 4.3

[George Dunlap <george.dunlap@eu.citrix.com>]

On 12/10/12 20:34, Keir Fraser wrote:
> On 12/10/2012 19:53, "Andres Lagar-Cavilla" <andreslc@gridcentric.ca> wrote:
>
>>> I don't see any dependency. And Tim has already proposed patches for
>>> use-case 2, in fact, as you noted. So, shouldn't they simply be polished up
>>> and applied as soon as possible? Basically, for mm type things, Tim is your
>>> man, either as author or reviewer.
>> Ok. Wanted to ascertain where we stand on things.
>>
>> Tim's patches crash guests because there are all sorts of spinlocks being
>> held. That's the gist of the mm work that needs to be done. And a separate
>> discussion.
> Yes, that's a *mm* can of worms. :) Tim is the first port of call, and
> working out who actually does the work, and what work that is, will be the
> the ensuing discussion.
So does it make sense to track this on the 4.3 feature list (obviously 
with "owner: ?" until that's sorted out)?  Andres, would the summary 
below be accurate enough?

* Waitqueues for hypervisor accesses to shared frames which fail with 
-ENOMEM
   owner: ?
   status: First draft posted back in February, much more work to do.

  -George