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[109.81.84.37]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438bd485695sm130149475e9.14.2025.01.27.04.51.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jan 2025 04:51:12 -0800 (PST) Date: Mon, 27 Jan 2025 13:51:11 +0100 From: Michal Hocko To: Johannes Weiner Cc: Andrew Morton , Roman Gushchin , Shakeel Butt , Muchun Song , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] mm: memcontrol: move stray ratelimit bits to v1 Message-ID: References: <20250124043859.18808-1-hannes@cmpxchg.org> <20250124043859.18808-2-hannes@cmpxchg.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250124043859.18808-2-hannes@cmpxchg.org> On Thu 23-01-25 23:38:59, Johannes Weiner wrote: > 41213dd0f816 ("memcg: move mem_cgroup_event_ratelimit to v1 code") > left this one behind. There are no v2 references. > > Signed-off-by: Johannes Weiner Acked-by: Michal Hocko Thanks! > --- > mm/memcontrol-v1.c | 13 +++++++++++++ > mm/memcontrol-v1.h | 12 ------------ > 2 files changed, 13 insertions(+), 12 deletions(-) > > diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c > index 2be6b9112808..6d184fae0ad1 100644 > --- a/mm/memcontrol-v1.c > +++ b/mm/memcontrol-v1.c > @@ -490,6 +490,19 @@ static void mem_cgroup_threshold(struct mem_cgroup *memcg) > } > > /* Cgroup1: threshold notifications & softlimit tree updates */ > + > +/* > + * Per memcg event counter is incremented at every pagein/pageout. With THP, > + * it will be incremented by the number of pages. This counter is used > + * to trigger some periodic events. This is straightforward and better > + * than using jiffies etc. to handle periodic memcg event. > + */ > +enum mem_cgroup_events_target { > + MEM_CGROUP_TARGET_THRESH, > + MEM_CGROUP_TARGET_SOFTLIMIT, > + MEM_CGROUP_NTARGETS, > +}; > + > struct memcg1_events_percpu { > unsigned long nr_page_events; > unsigned long targets[MEM_CGROUP_NTARGETS]; > diff --git a/mm/memcontrol-v1.h b/mm/memcontrol-v1.h > index 6dd7eaf96856..4c8f36430fe9 100644 > --- a/mm/memcontrol-v1.h > +++ b/mm/memcontrol-v1.h > @@ -28,18 +28,6 @@ static inline bool do_memsw_account(void) > return !cgroup_subsys_on_dfl(memory_cgrp_subsys); > } > > -/* > - * Per memcg event counter is incremented at every pagein/pageout. With THP, > - * it will be incremented by the number of pages. This counter is used > - * to trigger some periodic events. This is straightforward and better > - * than using jiffies etc. to handle periodic memcg event. > - */ > -enum mem_cgroup_events_target { > - MEM_CGROUP_TARGET_THRESH, > - MEM_CGROUP_TARGET_SOFTLIMIT, > - MEM_CGROUP_NTARGETS, > -}; > - > unsigned long mem_cgroup_usage(struct mem_cgroup *memcg, bool swap); > > void drain_all_stock(struct mem_cgroup *root_memcg); > -- > 2.48.1 -- Michal Hocko SUSE Labs