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-rw-r--r--mm/migrate_device.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/migrate_device.c b/mm/migrate_device.c
index 6c556b5876c6..d69131adc51c 100644
--- a/mm/migrate_device.c
+++ b/mm/migrate_device.c
@@ -279,6 +279,7 @@ next:
static const struct mm_walk_ops migrate_vma_walk_ops = {
.pmd_entry = migrate_vma_collect_pmd,
.pte_hole = migrate_vma_collect_hole,
+ .walk_lock = PGWALK_RDLOCK,
};
/*