1 files changed, 1 insertions, 2 deletions

diff --git a/mm/truncate.c b/mm/truncate.c
index e13f22efaad7..003c6c685fc8 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -622,12 +622,11 @@ int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end)
                 return -ENOSYS;
 
         mutex_lock(&inode->i_mutex);
-        down_write(&inode->i_alloc_sem);
+        inode_dio_wait(inode);
         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);
 
         return 0;