/*
         * Here we must make sure that no processes are submitting requests
         * to target drivers i.e. no one may be executing
-        * __split_and_process_bio. This is called from dm_request and
-        * dm_wq_work.
+        * __split_and_process_bio from dm_submit_bio.
         *
-        * To get all processes out of __split_and_process_bio in dm_request,
+        * To get all processes out of __split_and_process_bio in dm_submit_bio,
         * we take the write lock. To prevent any process from reentering
-        * __split_and_process_bio from dm_request and quiesce the thread
-        * (dm_wq_work), we set BMF_BLOCK_IO_FOR_SUSPEND and call
+        * __split_and_process_bio from dm_submit_bio and quiesce the thread
+        * (dm_wq_work), we set DMF_BLOCK_IO_FOR_SUSPEND and call
         * flush_workqueue(md->wq).
         */
        set_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags);