libceph: drop osdc from ceph_calc_raw_layout()

The osdc parameter to ceph_calc_raw_layout() is not used, so get rid
of it.  Consequently, the corresponding parameter in calc_layout()
becomes unused, so get rid of that as well.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

drivers/block/rbd.c

@@ -1168,7 +1168,7 @@ static int rbd_do_request(struct request *rq,
 	osd_req->r_oid_len = strlen(osd_req->r_oid);
 
 	rbd_layout_init(&osd_req->r_file_layout, rbd_dev->spec->pool_id);
-	ret = ceph_calc_raw_layout(osdc, &osd_req->r_file_layout,
+	ret = ceph_calc_raw_layout(&osd_req->r_file_layout,
 				ofs, &len, &bno, osd_req, ops);
 	rbd_assert(ret == 0);
 

include/linux/ceph/osd_client.h

@@ -207,8 +207,7 @@ extern void ceph_osdc_handle_reply(struct ceph_osd_client *osdc,
 extern void ceph_osdc_handle_map(struct ceph_osd_client *osdc,
 				 struct ceph_msg *msg);
 
-extern int ceph_calc_raw_layout(struct ceph_osd_client *osdc,
-			struct ceph_file_layout *layout,
+extern int ceph_calc_raw_layout(struct ceph_file_layout *layout,
 			u64 off, u64 *plen, u64 *bno,
 			struct ceph_osd_request *req,
 			struct ceph_osd_req_op *op);

net/ceph/osd_client.c

@@ -38,8 +38,7 @@ static int op_has_extent(int op)
 		op == CEPH_OSD_OP_WRITE);
 }
 
-int ceph_calc_raw_layout(struct ceph_osd_client *osdc,
-			struct ceph_file_layout *layout,
+int ceph_calc_raw_layout(struct ceph_file_layout *layout,
 			u64 off, u64 *plen, u64 *bno,
 			struct ceph_osd_request *req,
 			struct ceph_osd_req_op *op)
@@ -107,8 +106,7 @@ EXPORT_SYMBOL(ceph_calc_raw_layout);
  *
  * fill osd op in request message.
  */
-static int calc_layout(struct ceph_osd_client *osdc,
-		       struct ceph_vino vino,
+static int calc_layout(struct ceph_vino vino,
 		       struct ceph_file_layout *layout,
 		       u64 off, u64 *plen,
 		       struct ceph_osd_request *req,
@@ -117,7 +115,7 @@ static int calc_layout(struct ceph_osd_client *osdc,
 	u64 bno;
 	int r;
 
-	r = ceph_calc_raw_layout(osdc, layout, off, plen, &bno, req, op);
+	r = ceph_calc_raw_layout(layout, off, plen, &bno, req, op);
 	if (r < 0)
 		return r;
 
@@ -452,7 +450,7 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
 		return ERR_PTR(-ENOMEM);
 
 	/* calculate max write size */
-	r = calc_layout(osdc, vino, layout, off, plen, req, ops);
+	r = calc_layout(vino, layout, off, plen, req, ops);
 	if (r < 0)
 		return ERR_PTR(r);
 	req->r_file_layout = *layout;  /* keep a copy */