Re: [-mm][PATCH 3/5] change function prototype of shrink_zone()

From: KOSAKI Motohiro
Date: Mon May 05 2008 - 04:31:36 EST


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!
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