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-rw-r--r--mm/memory_hotplug.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 78dba9f04b5b..c46887b5a11e 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -498,7 +498,9 @@ static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start)
498 * The node we allocated has no zone fallback lists. For avoiding 498 * The node we allocated has no zone fallback lists. For avoiding
499 * to access not-initialized zonelist, build here. 499 * to access not-initialized zonelist, build here.
500 */ 500 */
501 mutex_lock(&zonelists_mutex);
501 build_all_zonelists(NULL); 502 build_all_zonelists(NULL);
503 mutex_unlock(&zonelists_mutex);
502 504
503 return pgdat; 505 return pgdat;
504} 506}