From ec164cf1dd3df4ae58931b9b491b06a90d5c22d3 Mon Sep 17 00:00:00 2001
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Date: Wed, 7 Aug 2024 09:40:52 +0300
Subject: mm: drop CONFIG_HAVE_ARCH_NODEDATA_EXTENSION

There are no users of HAVE_ARCH_NODEDATA_EXTENSION left, so
arch_alloc_nodedata() and arch_refresh_nodedata() are not needed anymore.

Replace the call to arch_alloc_nodedata() in free_area_init() with a new
helper alloc_offline_node_data(), remove arch_refresh_nodedata() and
cleanup include/linux/memory_hotplug.h from the associated ifdefery.

Link: https://lkml.kernel.org/r/20240807064110.1003856-9-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Tested-by: Zi Yan <ziy@nvidia.com> # for x86_64 and arm64
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Rob Herring (Arm) <robh@kernel.org>
Cc: Samuel Holland <samuel.holland@sifive.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/mm_init.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

(limited to 'mm/mm_init.c')

diff --git a/mm/mm_init.c b/mm/mm_init.c
index f3106b6299d3..4ba5607aaf19 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -1835,14 +1835,8 @@ void __init free_area_init(unsigned long *max_zone_pfn)
 	for_each_node(nid) {
 		pg_data_t *pgdat;
 
-		if (!node_online(nid)) {
-			/* Allocator not initialized yet */
-			pgdat = arch_alloc_nodedata(nid);
-			if (!pgdat)
-				panic("Cannot allocate %zuB for node %d.\n",
-				       sizeof(*pgdat), nid);
-			arch_refresh_nodedata(nid, pgdat);
-		}
+		if (!node_online(nid))
+			alloc_offline_node_data(nid);
 
 		pgdat = NODE_DATA(nid);
 		free_area_init_node(nid);
-- 
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