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Message-ID: <20220614092156.1972846-4-mawupeng1@huawei.com>
Date:   Tue, 14 Jun 2022 17:21:54 +0800
From:   Wupeng Ma <mawupeng1@...wei.com>
To:     <corbet@....net>, <will@...nel.org>, <ardb@...nel.org>,
        <catalin.marinas@....com>
CC:     <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>,
        <dave.hansen@...ux.intel.com>, <x86@...nel.org>, <hpa@...or.com>,
        <dvhart@...radead.org>, <andy@...radead.org>, <rppt@...nel.org>,
        <akpm@...ux-foundation.org>, <paul.walmsley@...ive.com>,
        <palmer@...belt.com>, <aou@...s.berkeley.edu>,
        <paulmck@...nel.org>, <keescook@...omium.org>,
        <songmuchun@...edance.com>, <rdunlap@...radead.org>,
        <damien.lemoal@...nsource.wdc.com>, <swboyd@...omium.org>,
        <wei.liu@...nel.org>, <robin.murphy@....com>, <david@...hat.com>,
        <mawupeng1@...wei.com>, <anshuman.khandual@....com>,
        <thunder.leizhen@...wei.com>, <wangkefeng.wang@...wei.com>,
        <gpiccoli@...lia.com>, <chenhuacai@...nel.org>,
        <geert@...ux-m68k.org>, <vijayb@...ux.microsoft.com>,
        <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-efi@...r.kernel.org>, <platform-driver-x86@...r.kernel.org>,
        <linux-mm@...ck.org>, <linux-riscv@...ts.infradead.org>
Subject: [PATCH v5 3/5] mm: Limit warning message in vmemmap_verify() to once

From: Ma Wupeng <mawupeng1@...wei.com>

For a system only have limited mirrored memory or some numa node without
mirrored memory, the per node vmemmap page_structs prefer to allocate
memory from mirrored region, which will lead to vmemmap_verify() in
vmemmap_populate_basepages() report lots of warning message.

This patch change the frequency of "potential offnode page_structs" warning
messages to only once to avoid a very long print during bootup.

Signed-off-by: Ma Wupeng <mawupeng1@...wei.com>
Acked-by: David Hildenbrand <david@...hat.com>
---
 mm/sparse-vmemmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index f4fa61dbbee3..f34c6889b0a6 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -528,7 +528,7 @@ void __meminit vmemmap_verify(pte_t *pte, int node,
 	int actual_node = early_pfn_to_nid(pfn);
 
 	if (node_distance(actual_node, node) > LOCAL_DISTANCE)
-		pr_warn("[%lx-%lx] potential offnode page_structs\n",
+		pr_warn_once("[%lx-%lx] potential offnode page_structs\n",
 			start, end - 1);
 }
 
-- 
2.25.1

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