[PATCH] memblock: use for_each_zone() in reset_all_zones_managed_pages()

[Sang-Heon Jeon <ekffu200098@gmail.com>]

reset_all_zones_managed_pages() iterates over the zones of every
online node with a nested loop. for_each_zone() iterates over the same
zones in the same order.

So use for_each_zone() instead and remove reset_node_managed_pages().

No functional change.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
---
 mm/memblock.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index 4302fb4ab85c..ed6937be8d9f 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -2465,22 +2465,14 @@ static unsigned long __init free_low_memory_core_early(void)
 	return count;
 }
 
-static void __init reset_node_managed_pages(pg_data_t *pgdat)
+static void __init reset_all_zones_managed_pages(void)
 {
 	struct zone *z;
 
-	for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
+	for_each_zone(z)
 		atomic_long_set(&z->managed_pages, 0);
 }
 
-static void __init reset_all_zones_managed_pages(void)
-{
-	struct pglist_data *pgdat;
-
-	for_each_online_pgdat(pgdat)
-		reset_node_managed_pages(pgdat);
-}
-
 /**
  * memblock_free_all - release free pages to the buddy allocator
  */

base-commit: dbffc67777cd752ef3f77818109e1d2ef13e2949
-- 
2.43.0