rbd: get rid of img_req->{offset,length}

These are set, but no longer used.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index a22d265..b3e310a 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -283,8 +283,6 @@ struct rbd_img_request {
        struct rbd_device       *rbd_dev;
        enum obj_operation_type op_type;
        enum obj_request_type   data_type;
-       u64                     offset; /* starting image byte offset */
-       u64                     length; /* byte count from offset */
        unsigned long           flags;
        union {
                u64                     snap_id;        /* for reads */
@@ -1602,7 +1600,6 @@ static bool rbd_dev_parent_get(struct rbd_device *rbd_dev)
  */
 static struct rbd_img_request *rbd_img_request_create(
                                        struct rbd_device *rbd_dev,
-                                       u64 offset, u64 length,
                                        enum obj_operation_type op_type,
                                        struct ceph_snap_context *snapc)
 {
@@ -1614,8 +1611,6 @@ static struct rbd_img_request *rbd_img_request_create(
 
        img_request->rbd_dev = rbd_dev;
        img_request->op_type = op_type;
-       img_request->offset = offset;
-       img_request->length = length;
        if (!rbd_img_is_write(img_request))
                img_request->snap_id = rbd_dev->spec->snap_id;
        else
@@ -1628,9 +1623,8 @@ static struct rbd_img_request *rbd_img_request_create(
        INIT_LIST_HEAD(&img_request->object_extents);
        kref_init(&img_request->kref);
 
-       dout("%s: rbd_dev %p %s %llu/%llu -> img %p\n", __func__, rbd_dev,
-               obj_op_name(op_type), offset, length, img_request);
-
+       dout("%s: rbd_dev %p %s -> img %p\n", __func__, rbd_dev,
+            obj_op_name(op_type), img_request);
        return img_request;
 }
 
@@ -1659,9 +1653,8 @@ static void rbd_img_request_destroy(struct kref *kref)
        kmem_cache_free(rbd_img_request_cache, img_request);
 }
 
-static struct rbd_img_request *rbd_parent_request_create(
-                                       struct rbd_obj_request *obj_request,
-                                       u64 img_offset, u64 length)
+static struct rbd_img_request *
+rbd_parent_request_create(struct rbd_obj_request *obj_request)
 {
        struct rbd_img_request *parent_request;
        struct rbd_device *rbd_dev;
@@ -1669,8 +1662,8 @@ static struct rbd_img_request *rbd_parent_request_create(
        rbd_assert(obj_request->img_request);
        rbd_dev = obj_request->img_request->rbd_dev;
 
-       parent_request = rbd_img_request_create(rbd_dev->parent, img_offset,
-                                               length, OBJ_OP_READ, NULL);
+       parent_request = rbd_img_request_create(rbd_dev->parent, OBJ_OP_READ,
+                                               NULL);
        if (!parent_request)
                return NULL;
 
@@ -2127,9 +2120,7 @@ static int rbd_obj_read_from_parent(struct rbd_obj_request *obj_req)
        struct rbd_img_request *child_img_req;
        int ret;
 
-       child_img_req = rbd_parent_request_create(obj_req,
-                                       obj_req->img_extents[0].fe_off,
-                                       obj_req->img_extents[0].fe_len);
+       child_img_req = rbd_parent_request_create(obj_req);
        if (!child_img_req)
                return -ENOMEM;
 
@@ -3562,8 +3553,7 @@ static void rbd_queue_workfn(struct work_struct *work)
                }
        }
 
-       img_request = rbd_img_request_create(rbd_dev, offset, length, op_type,
-                                            snapc);
+       img_request = rbd_img_request_create(rbd_dev, op_type, snapc);
        if (!img_request) {
                result = -ENOMEM;
                goto err_unlock;