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-rw-r--r--mm/internal.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 4194ab9dc19..5cbb7819004 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -350,3 +350,7 @@ extern u64 hwpoison_filter_flags_mask;
extern u64 hwpoison_filter_flags_value;
extern u64 hwpoison_filter_memcg;
extern u32 hwpoison_filter_enable;
+
+extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
+ unsigned long, unsigned long,
+ unsigned long, unsigned long);