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authorStefan Agner <stefan.agner@toradex.com>2019-08-16 16:40:08 +0200
committerStefan Agner <stefan.agner@toradex.com>2019-08-16 16:40:08 +0200
commit3758b8bd81966b63dc93093a323e9bdd734545fd (patch)
tree229bda2abe1a31d59da4b48e71aeefde934fe1d0 /mm/page_alloc.c
parentd15d0b7a9f89cf5a905ad6802eb23100c8063939 (diff)
parentdd209b062b86dd951cf1da93f20aa497fe99d52d (diff)
Merge tag 'v4.19.59-rt24' into toradex_4.19.y-rttoradex_4.19.y-rt
Linux 4.19.59-rt24
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a01c15fdb723..1679f5883307 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6022,13 +6022,15 @@ static unsigned long __meminit zone_spanned_pages_in_node(int nid,
unsigned long *zone_end_pfn,
unsigned long *ignored)
{
+ unsigned long zone_low = arch_zone_lowest_possible_pfn[zone_type];
+ unsigned long zone_high = arch_zone_highest_possible_pfn[zone_type];
/* When hotadd a new node from cpu_up(), the node should be empty */
if (!node_start_pfn && !node_end_pfn)
return 0;
/* Get the start and end of the zone */
- *zone_start_pfn = arch_zone_lowest_possible_pfn[zone_type];
- *zone_end_pfn = arch_zone_highest_possible_pfn[zone_type];
+ *zone_start_pfn = clamp(node_start_pfn, zone_low, zone_high);
+ *zone_end_pfn = clamp(node_end_pfn, zone_low, zone_high);
adjust_zone_range_for_zone_movable(nid, zone_type,
node_start_pfn, node_end_pfn,
zone_start_pfn, zone_end_pfn);