linux-kernel - Re: [PATCH v8 7/8] mm: only IPI CPUs to drain local pages if they exist

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Message-ID: <CAOtvUMdo3yx1d5Ghs=GVBHCQGA8t9Vg=PK77h4V=hrLWDPUcUQ@mail.gmail.com>
Date:	Thu, 9 Feb 2012 10:09:15 +0200
From:	Gilad Ben-Yossef <gilad@...yossef.com>
To:	Michal Nazarewicz <mina86@...a86.com>
Cc:	linux-kernel@...r.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Chris Metcalf <cmetcalf@...era.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Russell King <linux@....linux.org.uk>, linux-mm@...ck.org,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>,
	Sasha Levin <levinsasha928@...il.com>,
	Rik van Riel <riel@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel@...r.kernel.org, Avi Kivity <avi@...hat.com>,
	Milton Miller <miltonm@....com>
Subject: Re: [PATCH v8 7/8] mm: only IPI CPUs to drain local pages if they exist

2012/2/8 Michal Nazarewicz <mina86@...a86.com>:
> On Sun, 05 Feb 2012 14:48:41 +0100, Gilad Ben-Yossef <gilad@...yossef.com>
> wrote:
>>
>> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
>> index d2186ec..3ff5aff 100644
>> --- a/mm/page_alloc.c
>> +++ b/mm/page_alloc.c
>> @@ -1161,11 +1161,46 @@ void drain_local_pages(void *arg)
...
>> +
>> +       /* Allocate in the BSS so we wont require allocation in
>> +        * direct reclaim path for CONFIG_CPUMASK_OFFSTACK=y
>> +        */
>
>
> If you are going to send next iteration, this comment should have
> “/*” on its own line just like comment below.

Right, thanks.

Gilad

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Gilad Ben-Yossef
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