From: Vlastimil Babka <vbabka@suse.cz>
To: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org, Christoph Lameter <cl@linux.com>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Mel Gorman <mgorman@suse.de>,
Michal Nazarewicz <mina86@mina86.com>,
Minchan Kim <minchan@kernel.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH v2 0/5] Assorted compaction cleanups and optimizations
Date: Fri, 31 Jul 2015 17:30:59 +0200 [thread overview]
Message-ID: <55BB94B3.7090603@suse.cz> (raw)
In-Reply-To: <1438356487-7082-1-git-send-email-vbabka@suse.cz>
On 07/31/2015 05:28 PM, Vlastimil Babka wrote:
> v2 changes:
> - dropped Patch 6 as adjusting to Joonsoo's objection would be too
> complicated and the results didn't justify it
> - don't check for compound order > 0 in patches 4 and 5 as suggested by
> Michal Nazarewicz. Negative values are handled by converting to unsinged
> int, the pfn calculations work fine with 0 and it's unlikely to see 0
> due to a race when we just checked PageCompound().
ah, also patch 3 calls reset_cached_positions() from
__reset_isolation_suitable() as v1 missed a callsite by doing it
separately (spotted by Joonsoo)
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prev parent reply other threads:[~2015-07-31 15:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-31 15:28 Vlastimil Babka
2015-07-31 15:28 ` [PATCH v2 1/5] mm, compaction: more robust check for scanners meeting Vlastimil Babka
2015-07-31 15:28 ` [PATCH v2 2/5] mm, compaction: simplify handling restart position in free pages scanner Vlastimil Babka
2015-08-03 17:00 ` Michal Nazarewicz
2015-07-31 15:28 ` [PATCH v2 3/5] mm, compaction: encapsulate resetting cached scanner positions Vlastimil Babka
2015-07-31 15:28 ` [PATCH v2 4/5] mm, compaction: always skip compound pages by order in migrate scanner Vlastimil Babka
2015-08-07 9:18 ` Vlastimil Babka
2015-07-31 15:28 ` [PATCH v2 5/5] mm, compaction: skip compound pages by order in free scanner Vlastimil Babka
2015-07-31 15:30 ` Vlastimil Babka [this message]
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