linux-kernel - Re: [-mm][PATCH 3/5] change function prototype of shrink

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Date:	Mon, 5 May 2008 17:37:10 +0900
From:	"minchan Kim" <barrioskmc@...il.com>
To:	"KOSAKI Motohiro" <kosaki.motohiro@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: [-mm][PATCH 3/5] change function prototype of shrink_zone()

OK. I see
I seemed to be in a hurry without looking over following patches.

On Mon, May 5, 2008 at 5:31 PM, KOSAKI Motohiro
<kosaki.motohiro@...fujitsu.com> wrote:
> Hi
>
> >  >  +       sc->nr_reclaimed += nr_reclaimed;
> >  >         throttle_vm_writeout(sc->gfp_mask);
> >  >  -       return nr_reclaimed;
> >  >  +       return 0;
> >  >   }
> >
> >  I am not sure this is right.
> >  I might be wrong if this patch is depended on another patch.
> >
> >  As I see, shrink_zone always return 0 in your patch.
>
> Yeah, this patch is just preparetion change of [4/5].
> I use EAGAIN at [4/5].
>
>
> >  If it is right, I think that return value is useless. It is better
> >  that we change function return type to "void"
> >  Also, we have to change functions that call shrink_zone properly. ex)
> >  balance_pgdat, __zone_reclaim
> >  That functions still use number of shrink_zone's reclaim page
>
> this patch is not intent by solo usage.
> just intent to bisect friendly.
> thus, We need implement that following patch use freature only.
>
> Thanks!
>



-- 
Thanks,
barrios
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