Re: [PATCH] mm/damon: Remove duplicate get_monitoring_region() definitions

[haoxin]

在 2022/9/8 上午4:59, SeongJae Park 写道:
> On Wed, 7 Sep 2022 17:27:12 +0000 SeongJae Park <sj@xxxxxxxxxx> wrote:
>
> [...]
> > > diff --git a/mm/damon/ops-common.c b/mm/damon/ops-common.c
> > > index b1335de200e7..01938f33038d 100644
> > > --- a/mm/damon/ops-common.c
> > > +++ b/mm/damon/ops-common.c
> > > @@ -172,3 +172,31 @@ int damon_hot_score(struct damon_ctx *c, struct damon_region *r,
> > >
> > >   	return hotness;
> > >   }
> > > +
> > > +static inline int walk_system_ram(struct resource *res, void *arg)
> > > +{
> > > +	struct damon_addr_range *a = arg;
> > > +
> > > +	if (a->end - a->start < resource_size(res)) {
> > > +		a->start = res->start;
> > > +		a->end = res->end;
> > > +	}
> > > +	return 0;
> > > +}
> > > +
> > > +/*
> > > + * Find biggest 'System RAM' resource and store its start and end address in
> > > + * @start and @end, respectively.  If no System RAM is found, returns false.
> > > + */
> > > +bool get_monitoring_region(unsigned long *start, unsigned long *end)
> > > +{
> > > +	struct damon_addr_range arg = {};
> > > +
> > > +	walk_system_ram_res(0, ULONG_MAX, &arg, walk_system_ram);
> > > +	if (arg.end <= arg.start)
> > > +		return false;
> > > +
> > > +	*start = arg.start;
> > > +	*end = arg.end;
> > > +	return true;
> > > +}
> > 'ops-common.c' is for code that common in monitoring operations
> > implementations.  I'd prefer to have yet another source file for the DAMON
> > modules including reclaim and lru_sort, say, 'modules-common.c'.
> Or, putting it in damon/core.c might make more sense.
Ok,  i will fix them in my next patch, thanks.
> Thanks,
> SJ
>
> [...]