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Mon, 16 Jun 2025 13:52:17 +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 ePvhDpEhUGhHLwAAD6G6ig (envelope-from ); Mon, 16 Jun 2025 13:52:17 +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 11/11] mm,memory_hotplug: Drop status_change_nid parameter from memory_notify Date: Mon, 16 Jun 2025 15:51:54 +0200 Message-ID: <20250616135158.450136-12-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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 5EF65180015 X-Stat-Signature: u6idy9ozn7iqhenhpnc4ite4dupsiuis X-Rspam-User: X-HE-Tag: 1750081949-255539 X-HE-Meta: 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 mYqYbTjB 9TnsLLoYbTqkuTzjycCAOzHw5MGZ9cYI/IyanNXnEXie2WjSJH/O4/ikpibJvq10TaxELFHT7SjzXmHJMHlsxKBi5OXqcIkiW+ebrS4mR1alhdRqDZPnfR5b1FCYd2jgBucJtuiFjcJK7XBvV/Rz2zhxVHKyPMkxMs6BVkSKsnDFgM/V6ktVe0MNxbQuDnh8haq71RGJTMAzBbjsqHKpF0tFl1fm2HM/Gk+LjIlbu4fZ3VC3Xq4UxkmfJoc7Sev05O3YjBk1mw4ZU9HTkAXG1IqvwoUX0qSDchVr32oEeg1A51dOCEG0hGA+fd+evcOCK1EFvee8DNsLJz3Fw2VFRzeQdliWlNlhCUzaixFgvEjDMQJdtIDdWVZkmp0Qtv48+uqkl9FT4epl1Ish3OaBOulTz5rP22H0ZcazPGfE+WnyI03U= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: There no users left of status_change_nid, so drop it from memory_notify struct. Suggested-by: David Hildenbrand Signed-off-by: Oscar Salvador Acked-by: David Hildenbrand --- Documentation/core-api/memory-hotplug.rst | 7 ------- include/linux/memory.h | 1 - mm/memory_hotplug.c | 4 ---- 3 files changed, 12 deletions(-) diff --git a/Documentation/core-api/memory-hotplug.rst b/Documentation/core-api/memory-hotplug.rst index fb84e78968b2..8fc97c2379de 100644 --- a/Documentation/core-api/memory-hotplug.rst +++ b/Documentation/core-api/memory-hotplug.rst @@ -59,17 +59,10 @@ The third argument (arg) passes a pointer of struct memory_notify:: struct memory_notify { unsigned long start_pfn; unsigned long nr_pages; - int status_change_nid; } - start_pfn is start_pfn of online/offline memory. - nr_pages is # of pages of online/offline memory. -- status_change_nid is set node id when N_MEMORY of nodemask is (will be) - set/clear. It means a new(memoryless) node gets new memory by online and a - node loses all memory. If this is -1, then nodemask status is not changed. - - If status_changed_nid* >= 0, callback should create/discard structures for the - node if necessary. It is possible to get notified for MEM_CANCEL_ONLINE without having been notified for MEM_GOING_ONLINE, and the same applies to MEM_CANCEL_OFFLINE and diff --git a/include/linux/memory.h b/include/linux/memory.h index a9ccd6579422..de8b898ada3f 100644 --- a/include/linux/memory.h +++ b/include/linux/memory.h @@ -109,7 +109,6 @@ struct memory_notify { unsigned long altmap_nr_pages; unsigned long start_pfn; unsigned long nr_pages; - int status_change_nid; }; struct notifier_block; diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index e8ccfe4cada2..bfaa570c0685 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1153,7 +1153,6 @@ int online_pages(unsigned long pfn, unsigned long nr_pages, struct memory_notify mem_arg = { .start_pfn = pfn, .nr_pages = nr_pages, - .status_change_nid = NUMA_NO_NODE, }; struct node_notify node_arg = { .nid = NUMA_NO_NODE, @@ -1181,7 +1180,6 @@ int online_pages(unsigned long pfn, unsigned long nr_pages, if (!node_state(nid, N_MEMORY)) { /* Adding memory to the node for the first time */ node_arg.nid = nid; - mem_arg.status_change_nid = nid; ret = node_notify(NODE_ADDING_FIRST_MEMORY, &node_arg); ret = notifier_to_errno(ret); if (ret) @@ -1905,7 +1903,6 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages, struct memory_notify mem_arg = { .start_pfn = start_pfn, .nr_pages = nr_pages, - .status_change_nid = NUMA_NO_NODE, }; struct node_notify node_arg = { .nid = NUMA_NO_NODE, @@ -1976,7 +1973,6 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages, */ if (nr_pages >= pgdat->node_present_pages) { node_arg.nid = node; - mem_arg.status_change_nid = node; ret = node_notify(NODE_REMOVING_LAST_MEMORY, &node_arg); ret = notifier_to_errno(ret); if (ret) -- 2.49.0