From: Gregory Price <gourry@gourry.net>
To: Yury Norov <ynorov@nvidia.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
"Alistair Popple" <apopple@nvidia.com>,
"Byungchul Park" <byungchul@sk.com>,
"David Hildenbrand" <david@kernel.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Joshua Hahn" <joshua.hahnjy@gmail.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
"Lorenzo Stoakes" <lorenzo.stoakes@oracle.com>,
"Matthew Brost" <matthew.brost@intel.com>,
"Michal Hocko" <mhocko@suse.com>,
"Michal Koutný" <mkoutny@suse.com>,
"Mike Rapoport" <rppt@kernel.org>, "Rakie Kim" <rakie.kim@sk.com>,
"Suren Baghdasaryan" <surenb@google.com>,
"Tejun Heo" <tj@kernel.org>, "Vlastimil Babka" <vbabka@suse.cz>,
"Waiman Long" <longman@redhat.com>,
"Ying Huang" <ying.huang@linux.alibaba.com>,
"Zi Yan" <ziy@nvidia.com>,
cgroups@vger.kernel.org, "Yury Norov" <yury.norov@gmail.com>,
"Rasmus Villemoes" <linux@rasmusvillemoes.dk>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] cgroup: use nodes_and() output where appropriate
Date: Wed, 14 Jan 2026 13:00:58 -0500 [thread overview]
Message-ID: <aWfZ2lkPQWF-gihd@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <20260114172217.861204-4-ynorov@nvidia.com>
On Wed, Jan 14, 2026 at 12:22:15PM -0500, Yury Norov wrote:
> Now that nodes_and() returns true if the result nodemask is not empty,
> drop useless nodes_intersects() in guarantee_online_mems() and
> nodes_empty() in update_nodemasks_hier(), which both are O(N).
>
> Signed-off-by: Yury Norov <ynorov@nvidia.com>
This is a nice simplification, thank you!
Reviewed-by: Gregory Price <gourry@gourry.net>
next prev parent reply other threads:[~2026-01-14 18:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-14 17:22 [PATCH 0/3] nodemask: align nodes_and{,not} with underlying bitmap ops Yury Norov
2026-01-14 17:22 ` [PATCH 1/3] nodemask: propagate boolean for nodes_and{,not} Yury Norov
2026-01-14 17:56 ` Gregory Price
2026-01-14 17:22 ` [PATCH 2/3] mm: use nodes_and() return value to simplify client code Yury Norov
2026-01-14 17:56 ` Gregory Price
2026-01-14 17:22 ` [PATCH 3/3] cgroup: use nodes_and() output where appropriate Yury Norov
2026-01-14 18:00 ` Gregory Price [this message]
2026-01-14 19:37 ` [PATCH 0/3] nodemask: align nodes_and{,not} with underlying bitmap ops Joshua Hahn
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