drbd: Remove useless / wrong comments

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index dc11b70..84b4575 100644 (file)
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -680,13 +680,6 @@ static inline enum drbd_thread_state get_t_state(struct drbd_thread *thi)
        return thi->t_state;
 }
 
-
-/*
- * Having this as the first member of a struct provides sort of "inheritance".
- * "derived" structs can be "drbd_queue_work()"ed.
- * The callback should know and cast back to the descendant struct.
- * drbd_request and drbd_epoch_entry are descendants of drbd_work.
- */
 struct drbd_work;
 typedef int (*drbd_work_cb)(struct drbd_conf *, struct drbd_work *, int cancel);
 struct drbd_work {
@@ -715,9 +708,6 @@ struct drbd_request {
         * starting a new epoch...
         */
 
-       /* up to here, the struct layout is identical to drbd_epoch_entry;
-        * we might be able to use that to our advantage...  */
-
        struct list_head tl_requests; /* ring list in the transfer log */
        struct bio *master_bio;       /* master bio pointer */
        unsigned long rq_state; /* see comments above _req_mod() */