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x86/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE

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CONFIG_HAVE_BOOTMEM_INFO_NODE now essentially doesn't do anything.

So let's remove support for CONFIG_HAVE_BOOTMEM_INFO_NODE.

Link: https://lore.kernel.org/20260716-bootmem_info_part2-v2-7-4afc76c73d61@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand (Arm)
2026-07-16 16:51:06 +02:00
committed by Andrew Morton
parent f20e92095f
commit ea963eab11
2 changed files with 0 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
arch/x86/mm/init_64.c
View File

@@ -33,7 +33,6 @@
#include <linux/nmi.h>
#include <linux/gfp.h>
#include <linux/kcore.h>
#include <linux/bootmem_info.h>
#include <asm/processor.h>
#include <asm/bios_ebda.h>
@@ -1286,16 +1285,6 @@ void __ref arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap,
static struct kcore_list kcore_vsyscall;
static void __init register_page_bootmem_info(void)
{
#if defined(CONFIG_NUMA) || defined(CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP)
int i;
for_each_online_node(i)
register_page_bootmem_info_node(NODE_DATA(i));
#endif
}
/*
* Pre-allocates page-table pages for the vmalloc area in the kernel page-table.
* Only the level which needs to be synchronized between all page-tables is
@@ -1358,14 +1347,6 @@ void __init mem_init(void)
after_bootmem = 1;
x86_init.hyper.init_after_bootmem();
/*
* Must be done after boot memory is put on freelist, because here we
* might set fields in deferred struct pages that have not yet been
* initialized, and memblock_free_all() initializes all the reserved
* deferred pages for us.
*/
register_page_bootmem_info();
/* Register memory areas for /proc/kcore */
if (get_gate_vma(&init_mm))
kclist_add(&kcore_vsyscall, (void *)VSYSCALL_ADDR, PAGE_SIZE, KCORE_USER);
@@ -1564,13 +1545,6 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
return err;
}
#ifdef CONFIG_HAVE_BOOTMEM_INFO_NODE
void register_page_bootmem_memmap(unsigned long section_nr,
struct page *start_page, unsigned long nr_pages)
{
}
#endif
void __meminit vmemmap_populate_print_last(void)
{
if (p_start) {

1
mm/Kconfig
View File

@@ -590,7 +590,6 @@ endchoice
config MEMORY_HOTREMOVE
bool "Allow for memory hot remove"
select HAVE_BOOTMEM_INFO_NODE if X86_64
depends on MEMORY_HOTPLUG
select MIGRATION