xref: /freebsd/sys/geom/mountver/g_mountver.h (revision 780fb4a2)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2010 Edward Tomasz Napierala <trasz@FreeBSD.org>
5  * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
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 the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef	_G_MOUNTVER_H_
33 #define	_G_MOUNTVER_H_
34 
35 #define	G_MOUNTVER_CLASS_NAME	"MOUNTVER"
36 #define	G_MOUNTVER_VERSION	4
37 #define	G_MOUNTVER_SUFFIX	".mountver"
38 
39 #ifdef _KERNEL
40 
41 #define	G_MOUNTVER_DEBUG(lvl, ...)	do {				\
42 	if (g_mountver_debug >= (lvl)) {				\
43 		printf("GEOM_MOUNTVER");				\
44 		if (g_mountver_debug > 0)				\
45 			printf("[%u]", lvl);				\
46 		printf(": ");						\
47 		printf(__VA_ARGS__);					\
48 		printf("\n");						\
49 	}								\
50 } while (0)
51 #define	G_MOUNTVER_LOGREQ(bp, ...)	do {				\
52 	if (g_mountver_debug >= 2) {					\
53 		printf("GEOM_MOUNTVER[2]: ");				\
54 		printf(__VA_ARGS__);					\
55 		printf(" ");						\
56 		g_print_bio(bp);					\
57 		printf("\n");						\
58 	}								\
59 } while (0)
60 
61 struct g_mountver_softc {
62 	TAILQ_HEAD(, bio)		sc_queue;
63 	struct mtx			sc_mtx;
64 	char				*sc_provider_name;
65 	char				sc_ident[DISK_IDENT_SIZE];
66 	int				sc_orphaned;
67 	int				sc_shutting_down;
68 	int				sc_access_r;
69 	int				sc_access_w;
70 	int				sc_access_e;
71 };
72 #endif	/* _KERNEL */
73 
74 #endif	/* _G_MOUNTVER_H_ */
75