Re: [RFC 4/8] Make clear description of putback_lru_page

[Minchan Kim]

On Wed, Apr 27, 2011 at 5:11 PM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote:
> On Wed, 27 Apr 2011 01:25:21 +0900
> Minchan Kim <minchan.kim@xxxxxxxxx> wrote:
>
>> Commonly, putback_lru_page is used with isolated_lru_page.
>> The isolated_lru_page picks the page in middle of LRU and
>> putback_lru_page insert the lru in head of LRU.
>> It means it could make LRU churning so we have to be very careful.
>> Let's clear description of putback_lru_page.
>>
>> Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
>> Cc: Mel Gorman <mgorman@xxxxxxx>
>> Cc: Rik van Riel <riel@xxxxxxxxxx>
>> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
>> Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx>
>
> seems good...
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
>
> But is there consensus which side of LRU is tail? head?

I don't know. I used to think it's head.
If other guys raise a concern as well, let's talk about it. :)
Thanks

> I always need to revisit codes when I see a word head/tail....
>
>
>



-- 
Kind regards,
Minchan Kim
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