Commit 9699ee7b authored by Baoquan He's avatar Baoquan He Committed by Linus Torvalds
Browse files

mm: remove unneeded local variable in free_area_init_core 

Local variable 'zone_start_pfn' is not needed since there's only one call
site in free_area_init_core().  Let's remove it and pass
zone->zone_start_pfn directly to init_currently_empty_zone().

Link: https://lkml.kernel.org/r/20210122135956.5946-6-bhe@redhat.com


Signed-off-by: default avatarBaoquan He <bhe@redhat.com>
Reviewed-by: default avatarMike Rapoport <rppt@linux.ibm.com>
Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7010a6ec

mm/page_alloc.c

+1 −2
Original line number Diff line number Diff line
@@ -6927,7 +6927,6 @@ static void __init free_area_init_core(struct pglist_data *pgdat) 
	for (j = 0; j < MAX_NR_ZONES; j++) {

		struct zone *zone = pgdat->node_zones + j;

		unsigned long size, freesize, memmap_pages;

		unsigned long zone_start_pfn = zone->zone_start_pfn;



		size = zone->spanned_pages;

		freesize = zone->present_pages;
@@ -6976,7 +6975,7 @@ static void __init free_area_init_core(struct pglist_data *pgdat) 


		set_pageblock_order();

		setup_usemap(zone);

		init_currently_empty_zone(zone, zone_start_pfn, size);

		init_currently_empty_zone(zone, zone->zone_start_pfn, size);

		memmap_init_zone(zone);

	}

}