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. Signed-off-by: David Hildenbrand (Arm) <[email protected]> --- mm/bootmem_info.c | 12 +----------- 1 file changed, 1 insertion(+), 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) -- 2.43.0
