linux-kernel - [PATCH 1/3] mm/mm_init.c: remove comments in zone_spanned_pages_in_node() and zone_absent_pages_in

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Message-Id: <20230525040150.1588-1-haifeng.xu@shopee.com>
Date:   Thu, 25 May 2023 04:01:48 +0000
From:   Haifeng Xu <haifeng.xu@...pee.com>
To:     akpm@...ux-foundation.org
Cc:     mhocko@...e.com, david@...hat.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Haifeng Xu <haifeng.xu@...pee.com>
Subject: [PATCH 1/3] mm/mm_init.c: remove comments in zone_spanned_pages_in_node() and zone_absent_pages_in_node()

Since commit 03e85f9d5f1f ("mm/page_alloc: Introduce free_area_init_core_hotplug"),
free_area_init_node() doesn't get called in hotplug path anymore, so
remove the comments related to it.

Signed-off-by: Haifeng Xu <haifeng.xu@...pee.com>
---
 mm/mm_init.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/mm_init.c b/mm/mm_init.c
index 7f7f9c677854..cf55bba04b23 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -1174,7 +1174,6 @@ static unsigned long __init zone_absent_pages_in_node(int nid,
 	unsigned long zone_start_pfn, zone_end_pfn;
 	unsigned long nr_absent;
 
-	/* When hotadd a new node from cpu_up(), the node should be empty */
 	if (!node_start_pfn && !node_end_pfn)
 		return 0;
 
@@ -1227,7 +1226,7 @@ static unsigned long __init zone_spanned_pages_in_node(int nid,
 {
 	unsigned long zone_low = arch_zone_lowest_possible_pfn[zone_type];
 	unsigned long zone_high = arch_zone_highest_possible_pfn[zone_type];
-	/* When hotadd a new node from cpu_up(), the node should be empty */
+
 	if (!node_start_pfn && !node_end_pfn)
 		return 0;
 
-- 
2.25.1