drbd: Removed the now empty w_io_error() function

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

3 files changed, 1 insertions, 41 deletions

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 6d79a76ba597..86605f6d0854 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1474,7 +1474,6 @@ extern int w_e_end_ov_req(struct drbd_conf *, struct drbd_work *, int);
 extern int w_ov_finished(struct drbd_conf *, struct drbd_work *, int);
 extern int w_resync_inactive(struct drbd_conf *, struct drbd_work *, int);
 extern int w_resume_next_sg(struct drbd_conf *, struct drbd_work *, int);
-extern int w_io_error(struct drbd_conf *, struct drbd_work *, int);
 extern int w_send_write_hint(struct drbd_conf *, struct drbd_work *, int);
 extern int w_make_resync_request(struct drbd_conf *, struct drbd_work *, int);
 extern int w_send_dblock(struct drbd_conf *, struct drbd_work *, int);
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 3397f11d0ba9..e6c4d579eaba 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -102,32 +102,7 @@ static void _req_is_done(struct drbd_conf *mdev, struct drbd_request *req, const
                 }
         }
 
-        /* if it was a local io error, we want to notify our
-         * peer about that, and see if we need to
-         * detach the disk and stuff.
-         * to avoid allocating some special work
-         * struct, reuse the request. */
-
-        /* THINK
-         * why do we do this not when we detect the error,
-         * but delay it until it is "done", i.e. possibly
-         * until the next barrier ack? */
-
-        if (rw == WRITE &&
-            ((s & RQ_LOCAL_MASK) && !(s & RQ_LOCAL_OK))) {
-                if (!(req->w.list.next == LIST_POISON1 ||
-                      list_empty(&req->w.list))) {
-                        /* DEBUG ASSERT only; if this triggers, we
-                         * probably corrupt the worker list here */
-                        dev_err(DEV, "req->w.list.next = %p\n", req->w.list.next);
-                        dev_err(DEV, "req->w.list.prev = %p\n", req->w.list.prev);
-                }
-                req->w.cb = w_io_error;
-                drbd_queue_work(&mdev->data.work, &req->w);
-                /* drbd_req_free() is done in w_io_error */
-        } else {
-                drbd_req_free(req);
-        }
+        drbd_req_free(req);
 }
 
 static void queue_barrier(struct drbd_conf *mdev)
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 727ff6339754..a12b447bafbd 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -257,20 +257,6 @@ void drbd_endio_pri(struct bio *bio, int error)
                 complete_master_bio(mdev, &m);
 }
 
-int w_io_error(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
-{
-        struct drbd_request *req = container_of(w, struct drbd_request, w);
-
-        /* NOTE: mdev->ldev can be NULL by the time we get here! */
-        /* D_ASSERT(mdev->ldev->dc.on_io_error != EP_PASS_ON); */
-
-        /* the only way this callback is scheduled is from _req_may_be_done,
-         * when it is done and had a local write error, see comments there */
-        drbd_req_free(req);
-
-        return TRUE;
-}
-
 int w_read_retry_remote(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
 {
         struct drbd_request *req = container_of(w, struct drbd_request, w);