Re: [PATCH 1/4] mm, page_alloc: Split buffered_rmqueue

[Vlastimil Babka]

On 01/17/2017 10:07 PM, Mel Gorman wrote:
> On Tue, Jan 17, 2017 at 08:20:08PM +0000, Mel Gorman wrote:
> 
> I later recalled that we looked at this before and didn't think a reinit
> was necessary because the location of cpuset_current_mems_allowed doesn't
> change so I came back and took another look.  The location doesn't change
> but after the first attempt, we reset ac.nodemask to the given nodemask and
> don't recheck current_mems_allowed if the cpuset changed. The application
> of memory policies versus cpusets is a mess so it'll take time to pick
> apart to see if this is even remotely in the right direction.

Yes, I spent most of last 2 days untangling this, so I'll post at least
some RFC soon.