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-rw-r--r--drivers/base/node.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 472168cd0c97..74d45823890b 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -396,6 +396,16 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, int nid)
for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) {
int page_nid;
+ /*
+ * memory block could have several absent sections from start.
+ * skip pfn range from absent section
+ */
+ if (!pfn_present(pfn)) {
+ pfn = round_down(pfn + PAGES_PER_SECTION,
+ PAGES_PER_SECTION) - 1;
+ continue;
+ }
+
page_nid = get_nid_for_pfn(pfn);
if (page_nid < 0)
continue;