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From: Vlastimil Babka <vbabka@suse.cz>
To: Joonsoo Kim <js1304@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Mel Gorman <mgorman@techsingularity.net>,
	Minchan Kim <minchan@kernel.org>,
	Alexander Potapenko <glider@google.com>,
	Hugh Dickins <hughd@google.com>, Michal Hocko <mhocko@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux Memory Management List <linux-mm@kvack.org>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: Re: [PATCH v2 1/7] mm/compaction: split freepages without holding the zone lock
Date: Mon, 6 Jun 2016 17:19:14 +0200	[thread overview]
Message-ID: <1b0e617e-3853-4c8c-2c75-b1d95bfd6ded@suse.cz> (raw)
In-Reply-To: <CAAmzW4MPf+TW2=mNd_wNPsCSvRrA4e+CMomdZeBekuTdy6Q7dg@mail.gmail.com>

On 06/03/2016 02:45 PM, Joonsoo Kim wrote:
> 2016-06-03 19:10 GMT+09:00 Vlastimil Babka <vbabka@suse.cz>:
>> On 05/26/2016 04:37 AM, js1304@gmail.com wrote:
>>>
>>> From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>>>
>>> We don't need to split freepages with holding the zone lock. It will cause
>>> more contention on zone lock so not desirable.
>>>
>>> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>>
>>
>> So it wasn't possible to at least move this code from compaction.c to
>> page_alloc.c? Or better, reuse prep_new_page() with some forged
>> gfp/alloc_flags? As we discussed in v1...
>
> Sorry for not mentioning that I did it as a separate patch,
> Please see below link which is the last one within this patchset.
>
> Link: http://lkml.kernel.org/r/1464230275-25791-7-git-send-email-iamjoonsoo.kim@lge.com

Ah I see. In that case,

Acked-by: Vlastimil Babka <vbabka@suse.cz>


> Thanks.
>

WARNING: multiple messages have this Message-ID (diff)
From: Vlastimil Babka <vbabka@suse.cz>
To: Joonsoo Kim <js1304@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Mel Gorman <mgorman@techsingularity.net>,
	Minchan Kim <minchan@kernel.org>,
	Alexander Potapenko <glider@google.com>,
	Hugh Dickins <hughd@google.com>, Michal Hocko <mhocko@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux Memory Management List <linux-mm@kvack.org>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: Re: [PATCH v2 1/7] mm/compaction: split freepages without holding the zone lock
Date: Mon, 6 Jun 2016 17:19:14 +0200	[thread overview]
Message-ID: <1b0e617e-3853-4c8c-2c75-b1d95bfd6ded@suse.cz> (raw)
In-Reply-To: <CAAmzW4MPf+TW2=mNd_wNPsCSvRrA4e+CMomdZeBekuTdy6Q7dg@mail.gmail.com>

On 06/03/2016 02:45 PM, Joonsoo Kim wrote:
> 2016-06-03 19:10 GMT+09:00 Vlastimil Babka <vbabka@suse.cz>:
>> On 05/26/2016 04:37 AM, js1304@gmail.com wrote:
>>>
>>> From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>>>
>>> We don't need to split freepages with holding the zone lock. It will cause
>>> more contention on zone lock so not desirable.
>>>
>>> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>>
>>
>> So it wasn't possible to at least move this code from compaction.c to
>> page_alloc.c? Or better, reuse prep_new_page() with some forged
>> gfp/alloc_flags? As we discussed in v1...
>
> Sorry for not mentioning that I did it as a separate patch,
> Please see below link which is the last one within this patchset.
>
> Link: http://lkml.kernel.org/r/1464230275-25791-7-git-send-email-iamjoonsoo.kim@lge.com

Ah I see. In that case,

Acked-by: Vlastimil Babka <vbabka@suse.cz>


> Thanks.
>

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  reply	other threads:[~2016-06-06 15:19 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-26  2:37 [PATCH v2 1/7] mm/compaction: split freepages without holding the zone lock js1304
2016-05-26  2:37 ` js1304
2016-05-26  2:37 ` [PATCH v2 2/7] mm/page_owner: initialize page owner " js1304
2016-05-26  2:37   ` js1304
2016-06-03 10:23   ` Vlastimil Babka
2016-06-03 10:23     ` Vlastimil Babka
2016-06-03 12:47     ` Joonsoo Kim
2016-06-03 12:47       ` Joonsoo Kim
2016-06-06 15:20       ` Vlastimil Babka
2016-06-06 15:20         ` Vlastimil Babka
2016-05-26  2:37 ` [PATCH v2 3/7] mm/page_owner: copy last_migrate_reason in copy_page_owner() js1304
2016-05-26  2:37   ` js1304
2016-06-06 13:31   ` Vlastimil Babka
2016-06-06 13:31     ` Vlastimil Babka
2016-05-26  2:37 ` [PATCH v2 4/7] mm/page_owner: introduce split_page_owner and replace manual handling js1304
2016-05-26  2:37   ` js1304
2016-05-26  2:37 ` [PATCH v2 5/7] tools/vm/page_owner: increase temporary buffer size js1304
2016-05-26  2:37   ` js1304
2016-05-26  2:37 ` [PATCH v2 6/7] mm/page_owner: use stackdepot to store stacktrace js1304
2016-05-26  2:37   ` js1304
2016-06-06 13:56   ` Michal Hocko
2016-06-06 13:56     ` Michal Hocko
2016-06-17  7:25     ` Joonsoo Kim
2016-06-17  7:25       ` Joonsoo Kim
2016-06-17  9:55       ` Michal Hocko
2016-06-17  9:55         ` Michal Hocko
2016-06-20  6:58         ` Joonsoo Kim
2016-06-20  6:58           ` Joonsoo Kim
2016-06-06 14:51   ` Vlastimil Babka
2016-06-06 14:51     ` Vlastimil Babka
2016-06-20 13:04     ` Alexander Potapenko
2016-06-20 13:04       ` Alexander Potapenko
2016-05-26  2:37 ` [PATCH v2 7/7] mm/page_alloc: introduce post allocation processing on page allocator js1304
2016-05-26  2:37   ` js1304
2016-06-06 15:21   ` Vlastimil Babka
2016-06-06 15:21     ` Vlastimil Babka
2016-06-17  7:55     ` Joonsoo Kim
2016-06-17  7:55       ` Joonsoo Kim
2016-06-03 10:10 ` [PATCH v2 1/7] mm/compaction: split freepages without holding the zone lock Vlastimil Babka
2016-06-03 10:10   ` Vlastimil Babka
2016-06-03 12:45   ` Joonsoo Kim
2016-06-03 12:45     ` Joonsoo Kim
2016-06-06 15:19     ` Vlastimil Babka [this message]
2016-06-06 15:19       ` Vlastimil Babka
2016-06-13 20:31 ` Sasha Levin
2016-06-13 20:31   ` Sasha Levin
2016-06-14  5:52   ` Joonsoo Kim
2016-06-14  5:52     ` Joonsoo Kim
2016-06-14 19:10     ` Sasha Levin
2016-06-14 19:10       ` Sasha Levin
2016-06-15  2:27       ` Joonsoo Kim
2016-06-15  2:27         ` Joonsoo Kim
2016-06-17  7:27         ` Joonsoo Kim
2016-06-17  7:27           ` Joonsoo Kim

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