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From: Shakeel Butt <shakeel.butt@linux.dev>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	 Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@kernel.org>,
	 Roman Gushchin <roman.gushchin@linux.dev>,
	Muchun Song <muchun.song@linux.dev>,
	 Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	linux-mm@kvack.org, cgroups@vger.kernel.org,
	 linux-kernel@vger.kernel.org,
	Meta kernel team <kernel-team@meta.com>
Subject: Re: [RFC PATCH 00/10] memcg: stock code cleanups
Date: Fri, 14 Mar 2025 09:03:31 -0700	[thread overview]
Message-ID: <p6zxnvjyuc5e7rzkfjti3226io6iz4aabfcnoluxm4xsxscixn@l5qyadx7p6lv> (raw)
In-Reply-To: <6bd606f4-cfe9-4afb-b538-26feb56f9268@suse.cz>

On Fri, Mar 14, 2025 at 02:33:28PM +0100, Vlastimil Babka wrote:
> On 3/14/25 07:15, Shakeel Butt wrote:
> > This is a cleanup series (first 7 patches) is trying to simplify the
> > memcg stock code, particularly it tries to remove unnecessary
> > dependencies. The last 3 patches are a prototype to make per-cpu memcg
> > stock work without disabling irqs.
> > 
> > My plan is to send out the first 7 cleanup patches separately for the
> > next release window and iterate more on the last 3 patches plus add
> > functionality for multiple memcgs.
> > 
> > This series is based on next-20250313 plus two following patches:
> > 
> > Link: https://lore.kernel.org/all/20250312222552.3284173-1-shakeel.butt@linux.dev/
> > Link: https://lore.kernel.org/all/20250313054812.2185900-1-shakeel.butt@linux.dev/
> > 
> >  to simply the memcg stock code
> 
> Hi, 
> 
> I've been looking at this area too, and noticed a different opportunity for
> cleanup+perf improvement yesterday. I rebased it on top of patch 7 as it
> would make sense to do it before changing the locking - it reduces the
> number of places where the local_trylock is taken. If it's ok to you, please
> incorporate to your series.

Thanks a lot Vlastimil, I will take it and add review tag after
reviewing it.

Andrew, I will post only the cleanup series soon. It will be based on
next-20250314. If you decide to take it for upcoming open window
(6.15-rc) then some coordination with bpf tree would be needed. However
for the next window (6.16-rc), I don't expect conflicts.


      reply	other threads:[~2025-03-14 16:03 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-14  6:15 Shakeel Butt
2025-03-14  6:15 ` [RFC PATCH 01/10] memcg: remove root memcg check from refill_stock Shakeel Butt
2025-03-14  6:15 ` [RFC PATCH 02/10] memcg: decouple drain_obj_stock from local stock Shakeel Butt
2025-03-14  9:57   ` Vlastimil Babka
2025-03-14  6:15 ` [RFC PATCH 03/10] memcg: introduce memcg_uncharge Shakeel Butt
2025-03-14 10:01   ` Vlastimil Babka
2025-03-14  6:15 ` [RFC PATCH 04/10] memcg: manually inline __refill_stock Shakeel Butt
2025-03-14 10:05   ` Vlastimil Babka
2025-03-14  6:15 ` [RFC PATCH 05/10] memcg: no refilling stock from obj_cgroup_release Shakeel Butt
2025-03-14 10:09   ` Vlastimil Babka
2025-03-14 11:26   ` Sebastian Andrzej Siewior
2025-03-14 15:25     ` Shakeel Butt
2025-03-14  6:15 ` [RFC PATCH 06/10] memcg: do obj_cgroup_put inside drain_obj_stock Shakeel Butt
2025-03-14 10:17   ` Vlastimil Babka
2025-03-14 11:35     ` Sebastian Andrzej Siewior
2025-03-14 15:29       ` Shakeel Butt
2025-03-14  6:15 ` [RFC PATCH 07/10] memcg: use __mod_memcg_state in drain_obj_stock Shakeel Butt
2025-03-14 10:27   ` Vlastimil Babka
2025-03-14 11:44     ` Sebastian Andrzej Siewior
2025-03-14 11:38   ` Sebastian Andrzej Siewior
2025-03-14  6:15 ` [RFC PATCH 08/10] memcg: assert in_task for couple of local_lock holders Shakeel Butt
2025-03-14  6:15 ` [RFC PATCH 09/10] memcg: trylock stock for objcg Shakeel Butt
2025-03-14 11:47   ` Sebastian Andrzej Siewior
2025-03-14 15:33     ` Shakeel Butt
2025-03-14  6:15 ` [RFC PATCH 10/10] memcg: no more irq disabling for stock locks Shakeel Butt
2025-03-14 10:54   ` Vlastimil Babka
2025-03-14 11:58     ` Sebastian Andrzej Siewior
2025-03-14 15:55       ` Shakeel Butt
2025-03-14 16:42         ` Sebastian Andrzej Siewior
2025-03-14 17:02           ` Shakeel Butt
2025-03-14 17:38             ` Shakeel Butt
2025-03-14 18:19             ` Sebastian Andrzej Siewior
2025-03-14 13:33 ` [RFC PATCH 00/10] memcg: stock code cleanups Vlastimil Babka
2025-03-14 16:03   ` Shakeel Butt [this message]

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