linux-kernel - Re: [PATCH] mm: do not sleep in balance

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Message-ID: <CAJd=RBB0bwyjoMc5yt5SfgxCt3JcLUo8Fiz1r3oQ0RRhE1i59w@mail.gmail.com>
Date:	Sat, 29 Dec 2012 15:25:56 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Zlatko Calusic <zlatko.calusic@...on.hr>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	linux-mm <linux-mm@...ck.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: do not sleep in balance_pgdat if there's no i/o congestion

On Thu, Dec 27, 2012 at 11:42 PM, Zlatko Calusic
<zlatko.calusic@...on.hr> wrote:
> On 21.12.2012 12:51, Hillf Danton wrote:
>>
>> On Thu, Dec 20, 2012 at 7:25 AM, Zlatko Calusic <zlatko.calusic@...on.hr>
>> wrote:
>>>
>>>   static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
>>>                                                          int
>>> *classzone_idx)
>>>   {
>>> -       int all_zones_ok;
>>> +       struct zone *unbalanced_zone;
>>
>>
>> nit: less hunks if not erase that mark
>>
>> Hillf
>
>
> This one left unanswered and forgotten because I didn't understand what you
> meant. Could you elaborate?
>
Sure, the patch looks simpler(and nicer) if we dont
erase all_zones_ok.

Hillf
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