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Mon, 9 Jun 2025 09:22:05 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id KDvdGb2nRmjJGAAAD6G6ig (envelope-from ); Mon, 09 Jun 2025 09:22:05 +0000 From: Oscar Salvador To: Andrew Morton Cc: David Hildenbrand , Vlastimil Babka , Jonathan Cameron , Harry Yoo , Rakie Kim , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Joshua Hahn , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Oscar Salvador Subject: [PATCH v6 08/10] kernel,cpuset: Use node-notifier instead of memory-notifier Date: Mon, 9 Jun 2025 11:21:45 +0200 Message-ID: <20250609092149.312114-9-osalvador@suse.de> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250609092149.312114-1-osalvador@suse.de> References: <20250609092149.312114-1-osalvador@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-1.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; 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RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; R_RATELIMIT(0.00)[to_ip_from(RL13d73xi3shrbuzu7ftfs459h)]; RCPT_COUNT_SEVEN(0.00)[11]; RCVD_VIA_SMTP_AUTH(0.00)[]; TAGGED_RCPT(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com] X-Spam-Level: X-Spam-Flag: NO X-Rspamd-Queue-Id: 2D6801F45A X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Score: -1.51 cpuset is only concerned when a numa node changes its memory state, as it needs to know the current numa nodes with memory to keep an updated mems_allowed mask. So stop using the memory notifier and use the new numa node notifer instead. Signed-off-by: Oscar Salvador Reviewed-by: Jonathan Cameron Reviewed-by: Harry Yoo Reviewed-by: Vlastimil Babka Acked-by: David Hildenbrand --- kernel/cgroup/cpuset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 83639a12883d..66c84024f217 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -4013,7 +4013,7 @@ void __init cpuset_init_smp(void) cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask); top_cpuset.effective_mems = node_states[N_MEMORY]; - hotplug_memory_notifier(cpuset_track_online_nodes, CPUSET_CALLBACK_PRI); + hotplug_node_notifier(cpuset_track_online_nodes, CPUSET_CALLBACK_PRI); cpuset_migrate_mm_wq = alloc_ordered_workqueue("cpuset_migrate_mm", 0); BUG_ON(!cpuset_migrate_mm_wq); -- 2.49.0