1 files changed, 2 insertions, 2 deletions

diff --git a/mm/truncate.c b/mm/truncate.c
index 5b4c3a4847e9..29a9b8a5a31a 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -619,9 +619,9 @@ int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end)
         mutex_lock(&inode->i_mutex);
         down_write(&inode->i_alloc_sem);
         unmap_mapping_range(mapping, offset, (end - offset), 1);
-        truncate_inode_pages_range(mapping, offset, end);
-        unmap_mapping_range(mapping, offset, (end - offset), 1);
         inode->i_op->truncate_range(inode, offset, end);
+        /* unmap again to remove racily COWed private pages */
+        unmap_mapping_range(mapping, offset, (end - offset), 1);
         up_write(&inode->i_alloc_sem);
         mutex_unlock(&inode->i_mutex);