Re: [LSF/MM TOPIC][LSF/MM,ATTEND] shared TLB, hugetlb reservations

[Mike Kravetz]

On 04/03/2017 04:51 AM, Michal Hocko wrote:
> On Wed 08-03-17 17:30:55, Mike Kravetz wrote:
>> On 01/10/2017 03:02 PM, Mike Kravetz wrote:
>>> Another more concrete topic is hugetlb reservations.  Michal Hocko
>>> proposed the topic "mm patches review bandwidth", and brought up the
>>> related subject of areas in need of attention from an architectural
>>> POV.  I suggested that hugetlb reservations was one such area.  I'm
>>> guessing it was introduced to solve a rather concrete problem.  However,
>>> over time additional hugetlb functionality was added and the
>>> capabilities of the reservation code was stretched to accommodate.
>>> It would be good to step back and take a look at the design of this
>>> code to determine if a rewrite/redesign is necessary.  Michal suggested
>>> documenting the current design/code as a first step.  If people think
>>> this is worth discussion at the summit, I could put together such a
>>> design before the gathering.
>>
>> I attempted to put together a design/overview of how hugetlb reservations
>> currently work.  Hopefully, this will be useful.
> 
> I am still too busy to read through this carefuly and provide a useful
> feedback but I believe this should go int Documentation/vm/hugetlb$foo
> file. Care to send it as a patch please?

Sure

There is some incomplete information in the document, so I will make
some revisions and then send out as patch later this week.

-- 
Mike Kravetz