Re: [PATCH] mm/memcontrol.c: use list_{first,next}_entry

From: Michal Hocko
Date: Mon Dec 07 2015 - 11:21:14 EST


On Sat 05-12-15 10:55:42, Geliang Tang wrote:
> On Thu, Dec 03, 2015 at 05:27:18PM +0100, Michal Hocko wrote:
> > On Thu 03-12-15 22:16:55, Geliang Tang wrote:
> > > To make the intention clearer, use list_{first,next}_entry instead
> > > of list_entry.
> >
> > Does this really help readability? This function simply uncharges the
> > given list of pages. Why cannot we simply use list_for_each_entry
> > instead...
>
> I have tested it, list_for_each_entry can't work. Dose it mean that my
> patch is OK? Or please give me some other advices.

I dunno. Your change is technically correct of course. I find the exit
condition easier to read without your patch though.

--
Michal Hocko
SUSE Labs
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