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Mon, 16 Jun 2025 13:52:14 +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 QBVHLI4hUGhHLwAAD6G6ig (envelope-from ); Mon, 16 Jun 2025 13:52:14 +0000 From: Oscar Salvador To: Andrew Morton Cc: David Hildenbrand , Vlastimil Babka , Jonathan Cameron , Harry Yoo , Rakie Kim , Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Oscar Salvador Subject: [PATCH v7 07/11] drivers,hmat: Use node-notifier instead of memory-notifier Date: Mon, 16 Jun 2025 15:51:50 +0200 Message-ID: <20250616135158.450136-8-osalvador@suse.de> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250616135158.450136-1-osalvador@suse.de> References: <20250616135158.450136-1-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: quoted-printable X-Spamd-Result: default: False [-1.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; 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RCPT_COUNT_SEVEN(0.00)[10]; TAGGED_RCPT(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DKIM_TRACE(0.00)[suse.de:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com] X-Spam-Level: X-Spam-Flag: NO X-Rspamd-Queue-Id: D02F1211AD X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Score: -1.51 Content-Type: text/plain; charset="utf-8" hmat driver is only concerned when a numa node changes its memory state, specifically when a numa node with memory comes into play for the first time, because it will register the memory_targets belonging to that numa node. 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 --- drivers/acpi/numa/hmat.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c index 9d9052258e92..4958301f5417 100644 --- a/drivers/acpi/numa/hmat.c +++ b/drivers/acpi/numa/hmat.c @@ -962,10 +962,10 @@ static int hmat_callback(struct notifier_block *self, unsigned long action, void *arg) { struct memory_target *target; - struct memory_notify *mnb =3D arg; - int pxm, nid =3D mnb->status_change_nid; + struct node_notify *nn =3D arg; + int pxm, nid =3D nn->nid; =20 - if (nid =3D=3D NUMA_NO_NODE || action !=3D MEM_ONLINE) + if (action !=3D NODE_ADDED_FIRST_MEMORY) return NOTIFY_OK; =20 pxm =3D node_to_pxm(nid); @@ -1118,7 +1118,7 @@ static __init int hmat_init(void) hmat_register_targets(); =20 /* Keep the table and structures if the notifier may use them */ - if (hotplug_memory_notifier(hmat_callback, HMAT_CALLBACK_PRI)) + if (hotplug_node_notifier(hmat_callback, HMAT_CALLBACK_PRI)) goto out_put; =20 if (!hmat_set_default_dram_perf()) --=20 2.49.0