Re: [PATCH 1/7] mm: Cleanup - Reorganize the shrink_page_list code into smaller functions

From: Michal Hocko
Date: Mon May 30 2016 - 04:48:54 EST


On Fri 27-05-16 09:40:27, Tim Chen wrote:
> On Tue, 2016-05-03 at 14:01 -0700, Tim Chen wrote:
> > This patch prepares the code for being able to batch the anonymous
> > pages
> > to be swapped out.  It reorganizes shrink_page_list function with
> > 2 new functions: handle_pgout and pg_finish.
> >
> > The paging operation in shrink_page_list is consolidated into
> > handle_pgout function.
> >
> > After we have scanned a page shrink_page_list and completed any
> > paging,
> > the final disposition and clean up of the page is conslidated into
> > pg_finish.  The designated disposition of the page from page scanning
> > in shrink_page_list is marked with one of the designation in
> > pg_result.
> >
> > This is a clean up patch and there is no change in functionality or
> > logic of the code.
>
> Hi Michal,
>
> We've talked about doing the clean up of shrink_page_list code
> before attempting to do batching on the swap out path as those
> set of patches I've previously posted are quit intrusive.  Wonder
> if you have a chance to look at this patch and has any comments?

I have noticed your
http://lkml.kernel.org/r/1463779979.22178.142.camel@xxxxxxxxxxxxxxx but
still haven't found time to look at it. Sorry about that. There is
rather a lot on my pile...

--
Michal Hocko
SUSE Labs