linux-kernel - [PATCH 0/3] nodemask: align nodes_and{,not} with underlying bitmap ops

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Message-ID: <20260114172217.861204-1-ynorov@nvidia.com>
Date: Wed, 14 Jan 2026 12:22:12 -0500
From: Yury Norov <ynorov@...dia.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
	Alistair Popple <apopple@...dia.com>,
	Byungchul Park <byungchul@...com>,
	David Hildenbrand <david@...nel.org>,
	Gregory Price <gourry@...rry.net>,
	Johannes Weiner <hannes@...xchg.org>,
	Joshua Hahn <joshua.hahnjy@...il.com>,
	"Liam R. Howlett" <Liam.Howlett@...cle.com>,
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
	Matthew Brost <matthew.brost@...el.com>,
	Michal Hocko <mhocko@...e.com>,
	Michal Koutný <mkoutny@...e.com>,
	Mike Rapoport <rppt@...nel.org>,
	Rakie Kim <rakie.kim@...com>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Tejun Heo <tj@...nel.org>,
	Vlastimil Babka <vbabka@...e.cz>,
	Waiman Long <longman@...hat.com>,
	Ying Huang <ying.huang@...ux.alibaba.com>,
	Zi Yan <ziy@...dia.com>,
	cgroups@...r.kernel.org
Cc: Yury Norov <ynorov@...dia.com>,
	Yury Norov <yury.norov@...il.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] nodemask: align nodes_and{,not} with underlying bitmap ops

nodes_and{,not} are void despite that underlying bitmap_and(,not) return
boolean, true if the result bitmap is non-empty. Align nodemask API, and
simplify client code.

Yury Norov (3):
  nodemask: propagate boolean for nodes_and{,not}
  mm: use nodes_and() return value to simplify client code
  cgroup: use nodes_and() output where appropriate

 include/linux/nodemask.h | 8 ++++----
 kernel/cgroup/cpuset.c   | 7 +++----
 mm/memory-tiers.c        | 3 +--
 mm/mempolicy.c           | 3 +--
 4 files changed, 9 insertions(+), 12 deletions(-)

-- 
2.43.0