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Tue, 11 Feb 2025 00:29:05 -0800 (PST) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ab7d6acd8f1sm156456166b.50.2025.02.11.00.29.04 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 11 Feb 2025 00:29:05 -0800 (PST) From: Wei Yang To: rppt@kernel.org, akpm@linux-foundation.org Cc: linux-mm@kvack.org, Wei Yang Subject: [PATCH] mm/mm_init.c: only align start of ZONE_MOVALBE on nodes with memory Date: Tue, 11 Feb 2025 08:29:00 +0000 Message-Id: <20250211082900.10877-1-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 X-Rspamd-Queue-Id: 41E96C000A X-Stat-Signature: e8ueuce3y865sgeyzwu4mxijzyx9mkx4 X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1739262547-155249 X-HE-Meta: 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 qPwqz7zW 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 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: At the beginning of find_zone_movable_pfns_for_nodes(), it has properly set node_states[N_MEMORY] in early_calculate_totalpages(). Instead of iterate on all possible nodes, we can just do the alignment on nodes with memory. Signed-off-by: Wei Yang Acked-by: David Hildenbrand Reviewed-by: Dev Jain Reviewed-by: Anshuman Khandual Reviewed-by: Mike Rapoport (Microsoft) --- mm/mm_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mm_init.c b/mm/mm_init.c index 35754a8ae6c0..3ec50b5fda12 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -547,7 +547,7 @@ static void __init find_zone_movable_pfns_for_nodes(void) out2: /* Align start of ZONE_MOVABLE on all nids to MAX_ORDER_NR_PAGES */ - for (nid = 0; nid < MAX_NUMNODES; nid++) { + for_each_node_state(nid, N_MEMORY) { unsigned long start_pfn, end_pfn; zone_movable_pfn[nid] =