linux-kernel - Re: [PATCH 2/3] mm: use nodes_and() return value to simplify client code

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Message-ID: <222db635-e326-42ed-a121-ca302f0fdcbe@kernel.org>
Date: Thu, 15 Jan 2026 21:32:49 +0100
From: "David Hildenbrand (Red Hat)" <david@...nel.org>
To: Yury Norov <ynorov@...dia.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Alistair Popple <apopple@...dia.com>,
 Byungchul Park <byungchul@...com>, 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 <yury.norov@...il.com>,
 Rasmus Villemoes <linux@...musvillemoes.dk>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] mm: use nodes_and() return value to simplify client
 code

On 1/14/26 18:22, Yury Norov wrote:
> establish_demotion_targets() and kernel_migrate_pages() call
> node_empty() immediately after calling nodes_and(). Now that
> nodes_and() return false if nodemask is empty, drop the latter.
> 
> Signed-off-by: Yury Norov <ynorov@...dia.com>

Acked-by: David Hildenbrand (Red Hat) <david@...nel.org>

-- 
Cheers

David