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-rw-r--r--mm/memory-failure.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 378b0f61fd3..6b44e52caca 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1298,6 +1298,9 @@ done:
return ret;
}
+/*
+ * The caller must hold current->mm->mmap_sem in read mode.
+ */
int is_hwpoison_address(unsigned long addr)
{
pgd_t *pgdp;