Since the start and end pfns of the node are passed as arguments
to calculate_node_totalpages() they might as well be used to
specify the node_spanned_pages value for the node rather than
accumulating the spans of member zones.
This prevents the need for additional adjustments if zones are
allowed to overlap.
Signed-off-by: Doug Berger <opendmb@xxxxxxxxx>
---
mm/page_alloc.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e5486d47406e..3412d644c230 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7452,7 +7452,7 @@ static void __init calculate_node_totalpages(struct pglist_data *pgdat,
unsigned long node_start_pfn,
unsigned long node_end_pfn)
{
- unsigned long realtotalpages = 0, totalpages = 0;
+ unsigned long realtotalpages = 0;
enum zone_type i;
for (i = 0; i < MAX_NR_ZONES; i++) {
@@ -7483,11 +7483,10 @@ static void __init calculate_node_totalpages(struct pglist_data *pgdat,
zone->present_early_pages = real_size;
#endif
- totalpages += size;
realtotalpages += real_size;
}
- pgdat->node_spanned_pages = totalpages;
+ pgdat->node_spanned_pages = node_end_pfn - node_start_pfn;
pgdat->node_present_pages = realtotalpages;
pr_debug("On node %d totalpages: %lu\n", pgdat->node_id, realtotalpages);
}
--
2.25.1
