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Thu, 01 Oct 2020 06:48:19 -0700 (PDT) Date: Thu, 1 Oct 2020 09:46:38 -0400 From: Johannes Weiner To: Roman Gushchin Cc: Andrew Morton , Shakeel Butt , Michal Hocko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, kernel-team@fb.com Subject: Re: [PATCH v4 1/4] mm: memcontrol: use helpers to access page's memcg data Message-ID: <20201001134638.GE469663@cmpxchg.org> References: <20201001002710.748166-1-guro@fb.com> <20201001002710.748166-2-guro@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201001002710.748166-2-guro@fb.com> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Sep 30, 2020 at 05:27:07PM -0700, Roman Gushchin wrote: > +/* > + * set_page_memcg - associate a page with a memory cgroup > + * @page: a pointer to the page struct > + * @memcg: a pointer to the memory cgroup > + * > + * Associates a page with a memory cgroup. > + */ > +static inline void set_page_memcg(struct page *page, struct mem_cgroup *memcg) > +{ > + VM_BUG_ON_PAGE(PageSlab(page), page); > + > + /* > + * Please, refer to page_memcg()'s description for the page and memcg > + * binding stability requirements. > + */ > + page->memcg_data = (unsigned long)memcg; > +} Please delete and inline this as per previous feedback, thanks.