1 /* $FreeBSD: src/sys/i386/include/physio_proc.h,v 1.1.2.1 2000/10/29 11:05:48 non Exp $ */
2 /* $DragonFly: src/sys/platform/pc32/include/Attic/physio_proc.h,v 1.4 2003/08/26 21:42:18 rob Exp $ */
3 /* $NecBSD: physio_proc.h,v 3.4 1999/07/23 20:47:03 honda Exp $ */
7 * [NetBSD for NEC PC-98 series]
9 * NetBSD/pc98 porting staff. All rights reserved.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
34 #ifndef _MACHINE_PHYSIO_PROC_H_
35 #define _MACHINE_PHYSIO_PROC_H_
38 #include <sys/queue.h>
41 TAILQ_HEAD(physio_proc_head, physio_proc);
42 struct physio_proc_head physio_proc_freet, physio_proc_busyt;
45 TAILQ_ENTRY(physio_proc) pp_chain;
49 static __inline struct physio_proc *physio_proc_enter (struct buf *);
50 static __inline void physio_proc_leave (struct physio_proc *);
52 static __inline struct physio_proc *
56 struct physio_proc *pp;
59 if (bp == NULL || (bp->b_flags & B_PHYS) == 0)
61 if ((pp = physio_proc_freet.tqh_first) == NULL)
65 TAILQ_REMOVE(&physio_proc_freet, pp, pp_chain);
66 #if !defined(__FreeBSD__) || __FreeBSD_version < 400001
67 pp->pp_proc = bp->b_proc;
69 TAILQ_INSERT_TAIL(&physio_proc_busyt, pp, pp_chain);
76 struct physio_proc *pp;
84 TAILQ_REMOVE(&physio_proc_busyt, pp, pp_chain);
85 TAILQ_INSERT_TAIL(&physio_proc_freet, pp, pp_chain);
90 void physio_proc_init (void);
91 #endif /* _MACHINE_PHYSIO_PROC_H_ */