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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