linux-kernel - [RFC PATCH 00/10] memcg: stock code cleanups

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Message-ID: <20250314061511.1308152-1-shakeel.butt@linux.dev>
Date: Thu, 13 Mar 2025 23:15:01 -0700
From: Shakeel Butt <shakeel.butt@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Muchun Song <muchun.song@...ux.dev>,
	Vlastimil Babka <vbabka@...e.cz>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	linux-mm@...ck.org,
	cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Meta kernel team <kernel-team@...a.com>
Subject: [RFC PATCH 00/10] memcg: stock code cleanups

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

Shakeel Butt (10):
  memcg: remove root memcg check from refill_stock
  memcg: decouple drain_obj_stock from local stock
  memcg: introduce memcg_uncharge
  memcg: manually inline __refill_stock
  memcg: no refilling stock from obj_cgroup_release
  memcg: do obj_cgroup_put inside drain_obj_stock
  memcg: use __mod_memcg_state in drain_obj_stock
  memcg: assert in_task for couple of local_lock holders
  memcg: trylock stock for objcg
  memcg: no more irq disabling for stock locks

 mm/memcontrol.c | 201 +++++++++++++++++++++++++++---------------------
 1 file changed, 112 insertions(+), 89 deletions(-)

-- 
2.47.1