linux/kernel/cgroup
Yury Norov 291487b753 cgroup: use nodes_and() output where appropriate
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).

Link: https://lkml.kernel.org/r/20260114172217.861204-4-ynorov@nvidia.com
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Reviewed-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Joshua Hahn <joshua.hahnjy@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Mathew Brost <matthew.brost@intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Koutný <mkoutny@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Cc: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-26 20:02:37 -08:00
..
cgroup-internal.h cgroup: replace global percpu_rwsem with per threadgroup resem when writing to cgroup.procs 2025-09-10 07:44:51 -10:00
cgroup-v1.c cgroup: replace global percpu_rwsem with per threadgroup resem when writing to cgroup.procs 2025-09-10 07:44:51 -10:00
cgroup.c kernel: cgroup: Add SPDX-License-Identifier lines 2026-01-15 22:03:09 -10:00
cpuset-internal.h cpuset: remove global remote_children list 2025-11-11 11:47:08 -10:00
cpuset-v1.c cpuset: add helpers for cpus read and cpuset_mutex locks 2025-08-25 08:20:22 -10:00
cpuset.c cgroup: use nodes_and() output where appropriate 2026-01-26 20:02:37 -08:00
debug.c cgroup: Remove redundant rcu_read_lock/unlock() in spin_lock 2025-09-16 08:36:14 -10:00
dmem.c rculist: move list_for_each_rcu() to where it belongs 2025-08-25 10:13:26 -07:00
freezer.c cgroup: cgroup.stat.local time accounting 2025-08-22 07:50:43 -10:00
legacy_freezer.c kernel: cgroup: Add LGPL-2.1 SPDX license ID to legacy_freezer.c 2026-01-15 22:03:15 -10:00
Makefile kernel/cgroup: Add "dmem" memory accounting cgroup 2025-01-06 17:24:38 +01:00
misc.c Merge branch 'kvm-tdx-initial' into HEAD 2025-04-07 07:36:33 -04:00
namespace.c cgroup: add cgroup namespace to tree after owner is set 2025-10-31 10:16:24 +01:00
pids.c cgroup/pids: Remove unreachable paths of pids_{can,cancel}_fork 2024-08-05 10:32:16 -10:00
rdma.c rdmacg: fix kernel-doc warnings in rdmacg 2023-06-05 09:45:14 -10:00
rstat.c cgroup: rstat: use LOCK CMPXCHG in css_rstat_updated 2025-12-08 08:26:56 -10:00