diff options
| author | David Hildenbrand (Arm) <david@kernel.org> | 2026-05-11 17:05:34 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-06-03 01:22:11 +0300 |
| commit | ae751d567baa08342e5e34b378b72a6f9b2cfada (patch) | |
| tree | a31a6e9accba319df2738e19c9b49fc078a09677 | |
| parent | 0928e9050da334f629d0e4b97c5462aa90023c65 (diff) | |
| download | linux-ae751d567baa08342e5e34b378b72a6f9b2cfada.tar.xz | |
mm/bootmem_info: stop marking mem_section_usage as MIX_SECTION_INFO
We never free the ms->usage data for boot memory sections (see
section_deactivate()). And to identify whether ms->usage was allocated
from memblock, we simply identify it by looking at PG_reserved.
Consequently, there is no need to mark ms->usage as MIX_SECTION_INFO.
Let's just stop doing that.
Link: https://lore.kernel.org/20260511-bootmem_info_prep-v1-6-3fb0be6fc688@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Acked-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
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: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/bootmem_info.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/mm/bootmem_info.c b/mm/bootmem_info.c index cce1d560f094..0fa78db7fbc0 100644 --- a/mm/bootmem_info.c +++ b/mm/bootmem_info.c @@ -38,10 +38,8 @@ void put_page_bootmem(struct page *page) static void __init register_page_bootmem_info_section(unsigned long start_pfn) { - unsigned long mapsize, section_nr, i; + unsigned long section_nr; struct mem_section *ms; - struct mem_section_usage *usage; - struct page *page; start_pfn = SECTION_ALIGN_DOWN(start_pfn); section_nr = pfn_to_section_nr(start_pfn); @@ -50,14 +48,6 @@ static void __init register_page_bootmem_info_section(unsigned long start_pfn) if (!preinited_vmemmap_section(ms)) register_page_bootmem_memmap(section_nr, pfn_to_page(start_pfn), PAGES_PER_SECTION); - - usage = ms->usage; - page = virt_to_page(usage); - - mapsize = PAGE_ALIGN(mem_section_usage_size()) >> PAGE_SHIFT; - - for (i = 0; i < mapsize; i++, page++) - get_page_bootmem(section_nr, page, MIX_SECTION_INFO); } void __init register_page_bootmem_info_node(struct pglist_data *pgdat) |