xref: /freebsd/sys/geom/mountver/g_mountver.h (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
1 /*-
2  * Copyright (c) 2010 Edward Tomasz Napierala <trasz@FreeBSD.org>
3  * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef	_G_MOUNTVER_H_
31 #define	_G_MOUNTVER_H_
32 
33 #define	G_MOUNTVER_CLASS_NAME	"MOUNTVER"
34 #define	G_MOUNTVER_VERSION	4
35 #define	G_MOUNTVER_SUFFIX	".mountver"
36 
37 #ifdef _KERNEL
38 
39 #define	G_MOUNTVER_DEBUG(lvl, ...)	do {				\
40 	if (g_mountver_debug >= (lvl)) {				\
41 		printf("GEOM_MOUNTVER");				\
42 		if (g_mountver_debug > 0)				\
43 			printf("[%u]", lvl);				\
44 		printf(": ");						\
45 		printf(__VA_ARGS__);					\
46 		printf("\n");						\
47 	}								\
48 } while (0)
49 #define	G_MOUNTVER_LOGREQ(bp, ...)	do {				\
50 	if (g_mountver_debug >= 2) {					\
51 		printf("GEOM_MOUNTVER[2]: ");				\
52 		printf(__VA_ARGS__);					\
53 		printf(" ");						\
54 		g_print_bio(bp);					\
55 		printf("\n");						\
56 	}								\
57 } while (0)
58 
59 struct g_mountver_softc {
60 	TAILQ_HEAD(, bio)		sc_queue;
61 	struct mtx			sc_mtx;
62 	char				*sc_provider_name;
63 	char				sc_ident[DISK_IDENT_SIZE];
64 	int				sc_orphaned;
65 	int				sc_access_r;
66 	int				sc_access_w;
67 	int				sc_access_e;
68 };
69 #endif	/* _KERNEL */
70 
71 #endif	/* _G_MOUNTVER_H_ */
72