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SubjectRe: [PATCH v3 2/3] mm, memcg: inline mem_cgroup_{charge/uncharge} to improve disabled memcg config
On Sun, Jul 18, 2021 at 9:56 AM Matthew Wilcox <willy@infradead.org> wrote:
>
> On Fri, Jul 09, 2021 at 05:36:25PM -0700, Suren Baghdasaryan wrote:
> > @@ -6723,7 +6722,7 @@ static int __mem_cgroup_charge(struct page *page, struct mem_cgroup *memcg,
> > }
> >
> > /**
> > - * mem_cgroup_charge - charge a newly allocated page to a cgroup
> > + * __mem_cgroup_charge - charge a newly allocated page to a cgroup
> > * @page: page to charge
> > * @mm: mm context of the victim
> > * @gfp_mask: reclaim mode
>
> This patch conflicts with the folio work, so I'm just rebasing the
> folio patches on top of this, and I think this part of the patch is a
> mistake. We don't want to document the __mem_cgroup_charge() function.
> That's an implementation detail. This patch should instead have moved the
> kernel-doc to memcontrol.h and continued to document mem_cgroup_charge().

Ack.
There was a v4 version of this patch:
https://lore.kernel.org/patchwork/patch/1458907 which was picked up by
Andrew already. If others agree that documentation should be moved
into the header file then I'll gladly post another version. Or I can
post a separate patch moving the documentation only. Whatever works
best. Andrew, Michal, Johannes, WDYT?

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