Re: [PATCH]: VM 8/8 shrink_list(): set PG_reclaimed

[Andrew Morton <akpm@osdl.org>]

Nikita Danilov <nikita@clusterfs.com> wrote:
>
>  > 
>   > To address the race which Nick identified I think we can do it this way?
> 
>  I think that instead of fixing that race we'd better to make it valid:
>  let's redefine PG_reclaim to mean
> 
>         "page has been seen on the tail of the inactive list, but VM
>         failed to reclaim it right away either because it was dirty, or
>         there was some race. Reclaim this page as soon as possible."
> 
>  Nikita.
> 
>  set PG_reclaimed bit on pages that are under writeback when shrink_list()
>  looks at them: these pages are at end of the inactive list, and it only makes
>  sense to reclaim them as soon as possible when writeout finishes.

Seems a bit too complex to me.  See if you can get it back to a three-liner ;)

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