mm/memory_hotplug: we always have a zone in find_(smallest|biggest)_s…

…ection_pfn With shrink_pgdat_span() out of the way, we now always have a valid zone. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: David Hildenbrand <[email protected]> Cc: Michal Hocko <[email protected]> Cc: "Matthew Wilcox (Oracle)" <[email protected]> Cc: "Aneesh Kumar K.V" <[email protected]> Cc: Pavel Tatashin <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Dan Williams <[email protected]> Cc: Logan Gunthorpe <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: Pankaj Gupta <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
josf · Feb 4, 2020 · 9b05158 · 9b05158
1 parent d33695b
commit 9b05158
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
@@ -355,7 +355,7 @@ static unsigned long find_smallest_section_pfn(int nid, struct zone *zone,
 		if (unlikely(pfn_to_nid(start_pfn) != nid))
 			continue;
 
-		if (zone && zone != page_zone(pfn_to_page(start_pfn)))
+		if (zone != page_zone(pfn_to_page(start_pfn)))
 			continue;
 
 		return start_pfn;
@@ -380,7 +380,7 @@ static unsigned long find_biggest_section_pfn(int nid, struct zone *zone,
 		if (unlikely(pfn_to_nid(pfn) != nid))
 			continue;
 
-		if (zone && zone != page_zone(pfn_to_page(pfn)))
+		if (zone != page_zone(pfn_to_page(pfn)))
 			continue;
 
 		return pfn;