From: "David Hildenbrand (Arm)" <david@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
Andreas Larsson <andreas@gaisler.com>,
Mike Rapoport <rppt@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>
Cc: sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-s390@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
"David Hildenbrand (Arm)" <david@kernel.org>
Subject: [PATCH 8/8] powerpc/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE
Date: Mon, 11 May 2026 16:05:36 +0200 [thread overview]
Message-ID: <20260511-bootmem_info_prep-v1-8-3fb0be6fc688@kernel.org> (raw)
In-Reply-To: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org>
register_page_bootmem_info_node() essentially only calls
register_page_bootmem_memmap(). However, on powerpc that function is a
nop. So there is not benefit in using CONFIG_HAVE_BOOTMEM_INFO_NODE
anymore, let's just drop it.
We can stop including bootmem_info.h.
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
---
arch/powerpc/mm/init_64.c | 8 --------
mm/Kconfig | 2 +-
2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index b6f3ae03ca9e..64f0df5bb5cd 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -41,7 +41,6 @@
#include <linux/libfdt.h>
#include <linux/memremap.h>
#include <linux/memory.h>
-#include <linux/bootmem_info.h>
#include <asm/pgalloc.h>
#include <asm/page.h>
@@ -388,13 +387,6 @@ void __ref vmemmap_free(unsigned long start, unsigned long end,
#endif
-#ifdef CONFIG_HAVE_BOOTMEM_INFO_NODE
-void register_page_bootmem_memmap(unsigned long section_nr,
- struct page *start_page, unsigned long size)
-{
-}
-#endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */
-
#endif /* CONFIG_SPARSEMEM_VMEMMAP */
#ifdef CONFIG_PPC_BOOK3S_64
diff --git a/mm/Kconfig b/mm/Kconfig
index e221fa1dc54d..97b079372325 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -537,7 +537,7 @@ endchoice
config MEMORY_HOTREMOVE
bool "Allow for memory hot remove"
- select HAVE_BOOTMEM_INFO_NODE if (X86_64 || PPC64)
+ select HAVE_BOOTMEM_INFO_NODE if X86_64
depends on MEMORY_HOTPLUG
select MIGRATION
--
2.43.0
next prev parent reply other threads:[~2026-05-11 14:06 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-11 14:05 [PATCH 0/8] mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1) David Hildenbrand (Arm)
2026-05-11 14:05 ` [PATCH 1/8] sparc/mm: remove register_page_bootmem_info() David Hildenbrand (Arm)
2026-05-12 8:28 ` Oscar Salvador
2026-05-13 8:25 ` Mike Rapoport
2026-05-18 6:55 ` Lance Yang
2026-05-11 14:05 ` [PATCH 2/8] mm/bootmem_info: drop initialization of page->lru David Hildenbrand (Arm)
2026-05-12 8:28 ` Oscar Salvador
2026-05-13 8:27 ` Mike Rapoport
2026-05-18 7:49 ` Lance Yang
2026-05-11 14:05 ` [PATCH 3/8] mm/bootmem_info: stop using PG_private David Hildenbrand (Arm)
2026-05-12 8:30 ` Oscar Salvador
2026-05-13 8:29 ` Mike Rapoport
2026-05-19 2:56 ` Lance Yang
2026-05-11 14:05 ` [PATCH 4/8] mm/bootmem_info: remove call to kmemleak_free_part_phys() David Hildenbrand (Arm)
2026-05-12 8:34 ` Oscar Salvador
2026-05-12 8:45 ` David Hildenbrand (Arm)
2026-05-20 12:15 ` Lance Yang
2026-05-13 8:31 ` Mike Rapoport
2026-05-11 14:05 ` [PATCH 5/8] mm/bootmem_info: stop marking the pgdat as NODE_INFO David Hildenbrand (Arm)
2026-05-12 7:45 ` Michal Hocko
2026-05-12 7:47 ` David Hildenbrand (Arm)
2026-05-12 8:36 ` Oscar Salvador
2026-05-13 8:35 ` Mike Rapoport
2026-05-20 15:30 ` Lance Yang
2026-05-11 14:05 ` [PATCH 6/8] mm/bootmem_info: stop marking mem_section_usage as MIX_SECTION_INFO David Hildenbrand (Arm)
2026-05-12 8:37 ` Oscar Salvador
2026-05-13 8:38 ` Mike Rapoport
2026-05-21 5:03 ` Lance Yang
2026-05-11 14:05 ` [PATCH 7/8] s390/mm: use free_reserved_page() in vmem_free_pages() David Hildenbrand (Arm)
2026-05-11 14:21 ` Heiko Carstens
2026-05-11 14:24 ` David Hildenbrand (Arm)
2026-05-11 15:22 ` Heiko Carstens
2026-05-11 15:28 ` David Hildenbrand (Arm)
2026-05-12 8:38 ` Oscar Salvador
2026-05-13 8:40 ` Mike Rapoport
2026-05-21 8:39 ` Lance Yang
2026-05-11 14:05 ` David Hildenbrand (Arm) [this message]
2026-05-12 8:43 ` [PATCH 8/8] powerpc/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE Oscar Salvador
2026-05-13 3:25 ` Ritesh Harjani
2026-05-13 8:41 ` Mike Rapoport
2026-05-21 8:47 ` Lance Yang
2026-05-12 7:46 ` [PATCH 0/8] mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1) Michal Hocko
2026-05-12 7:48 ` David Hildenbrand (Arm)
2026-05-12 8:45 ` Oscar Salvador
2026-05-12 8:51 ` David Hildenbrand (Arm)
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