Re: [PATCH v2 4/5] mm, kswapd: replace kswapd compaction with waking up kcompactd

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On 03/05/2016 12:25 AM, Andrew Morton wrote:
On Wed, 2 Mar 2016 16:22:43 +0100 Vlastimil Babka <vbabka@xxxxxxx> wrote:

On 03/02/2016 03:59 PM, Joonsoo Kim wrote:
2016-03-02 23:40 GMT+09:00 Vlastimil Babka <vbabka@xxxxxxx>:
On 03/02/2016 03:22 PM, Joonsoo Kim wrote:

So I understand that patch 5 would be just about this?

-       if (compaction_restarting(zone, cc->order) && !current_is_kcompactd())
+       if (compaction_restarting(zone, cc->order))
                  __reset_isolation_suitable(zone);

Yeah, you understand correctly. :)

I'm more inclined to fold it in that case.

Patch would be just simple, but, I guess it would cause some difference
in test result. But, I'm okay for folding.

Thanks. Andrew, should I send now patch folding patch 4/5 and 5/5 with
all the accumulated fixlets (including those I sent earlier today) and
combined changelog, or do you want to apply the new fixlets separately
first and let them sit for a week or so? In any case, sorry for the churn.

Did I get everything?

Yeah, thanks! I'll send the squash in few days (also with a vmstat typo fix that Hugh pointed out in another thread).

http://ozlabs.org/~akpm/mmots/broken-out/mm-kswapd-remove-bogus-check-of-balance_classzone_idx.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-introduce-kcompactd.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-introduce-kcompactd-fix.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-introduce-kcompactd-fix-2.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-introduce-kcompactd-fix-3.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-memory-hotplug-small-cleanup-in-online_pages.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd-fix.patch
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-adapt-isolation_suitable-flushing-to-kcompactd.patch


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