1 files changed, 1 insertions, 0 deletions

diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index b2658b9220fe..ddad5903341c 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -140,6 +140,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
+        spin_lock_init(&mm->context.list_lock);
         INIT_LIST_HEAD(&mm->context.crst_list);
         INIT_LIST_HEAD(&mm->context.pgtable_list);
         return (pgd_t *) crst_table_alloc(mm, s390_noexec);