* I worked with.
*
* Empty barriers are not allowed anyway, see 51fd77bd9f512
- * for example, although later it was changed to bio_discard()
- * only, which does not work in this case.
+ * for example, although later it was changed to
+ * bio_rw_flagged(bio, BIO_RW_DISCARD) only, which does not
+ * work in this case.
*/
//err = -EOPNOTSUPP;
err = 0;