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-rw-r--r--arch/s390/mm/pgtable.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 6e765bf00670..a3db5a3ea083 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -822,6 +822,8 @@ int s390_enable_sie(void)
/* we copy the mm and let dup_mm create the page tables with_pgstes */
tsk->mm->context.alloc_pgste = 1;
+ /* make sure that both mms have a correct rss state */
+ sync_mm_rss(tsk->mm);
mm = dup_mm(tsk);
tsk->mm->context.alloc_pgste = 0;
if (!mm)
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