Re: [PATCH] mm: compaction: fix the page state calculation in too_many_isolated

[Vlastimil Babka]

On 01/22/2015 01:58 AM, David Rientjes wrote:
> > I think in case of async compaction, we could skip the safe stuff and just
> > terminate it - it's already done when too_many_isolated returns true, and
> > there's no congestion waiting in that case.
> >
> > So you could extend the too_many_isolated() with "safe" parameter (as you did
> > for vmscan) and pass it "cc->mode != MIGRATE_ASYNC" value from
> > isolate_migrate_block().
>
> Or just pass it struct compact_control *cc and use both cc->zone and
> cc->mode inside this compaction-only function.

Yeah,

in any case, please wait until the discussion about the vmscan fix is 
resolved, before reposting this.

Thanks.

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