2 * Copyright (c) 2011 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Brills Peng <brillsp@gmail.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #ifndef _DSCHED_BFQ_WF2Q_H_
36 #define _DSCHED_BFQ_WF2Q_H_
40 /* struct bfq_thread_io is defined in bfq.h */
43 RB_HEAD(wf2q_augtree_t, bfq_thread_io);
46 struct wf2q_augtree_t wf2q_augtree;
47 int wf2q_virtual_time;
51 #ifndef _DSCHED_BFQ_H_
52 #include <kern/dsched/bfq/bfq.h>
55 void wf2q_init(struct wf2q_t *pwf2q);
56 void wf2q_insert_thread_io(struct wf2q_t *wf2q, struct bfq_thread_io *tdio);
57 void wf2q_remove_thread_io(struct wf2q_t *wf2q, struct bfq_thread_io *tdio);
58 void wf2q_update_vd(struct bfq_thread_io *tdio, int received_service);
59 struct bfq_thread_io *wf2q_get_next_thread_io(struct wf2q_t *wf2q);
60 void wf2q_inc_tot_service(struct wf2q_t *wf2q, int amount);
62 #endif /* !_DSCHED_BFQ_WF2Q_H_ */