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Date: Mon, 7 Jul 2014 13:58:41 +0900
From: Joonsoo Kim <iamjoonsoo.kim@....com>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
Rik van Riel <riel@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Mel Gorman <mgorman@...e.de>,
Johannes Weiner <hannes@...xchg.org>,
Minchan Kim <minchan@...nel.org>,
Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
Zhang Yanfei <zhangyanfei@...fujitsu.com>,
"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
Tang Chen <tangchen@...fujitsu.com>,
Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Wen Congyang <wency@...fujitsu.com>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Michal Nazarewicz <mina86@...a86.com>,
Laura Abbott <lauraa@...eaurora.org>,
Heesub Shin <heesub.shin@...sung.com>,
"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
Ritesh Harjani <ritesh.list@...il.com>,
t.stanislaws@...sung.com, Gioh Kim <gioh.kim@....com>,
linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/10] mm/page_alloc: remove unlikely macro on
free_one_page()
On Fri, Jul 04, 2014 at 02:03:10PM +0200, Vlastimil Babka wrote:
> On 07/04/2014 09:57 AM, Joonsoo Kim wrote:
> > Isolation is really rare case so !is_migrate_isolate() is
> > likely case. Remove unlikely macro.
>
> Good catch. Why not replace it with likely then? Any difference in the assembly?
>
I didn't investigate it. I will check it in next spin.
Thanks.
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