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-rw-r--r--mm/userfaultfd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 93a12cc107c9..aae19c29bcfa 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -55,6 +55,8 @@ static int mcopy_atomic_pte(struct mm_struct *dst_mm,
/* don't free the page */
goto out;
}
+
+ flush_dcache_page(page);
} else {
page = *pagep;
*pagep = NULL;
@@ -574,6 +576,7 @@ retry:
err = -EFAULT;
goto out;
}
+ flush_dcache_page(page);
goto retry;
} else
BUG_ON(page);