ffs_extern.h revision 1.44 1 /* $NetBSD: ffs_extern.h,v 1.44 2005/08/28 19:37:59 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1991, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95
32 */
33
34 #ifndef _UFS_FFS_FFS_EXTERN_H_
35 #define _UFS_FFS_FFS_EXTERN_H_
36
37 /*
38 * Sysctl values for the fast filesystem.
39 */
40 #define FFS_CLUSTERREAD 1 /* cluster reading enabled */
41 #define FFS_CLUSTERWRITE 2 /* cluster writing enabled */
42 #define FFS_REALLOCBLKS 3 /* block reallocation enabled */
43 #define FFS_ASYNCFREE 4 /* asynchronous block freeing enabled */
44 #define FFS_LOG_CHANGEOPT 5 /* log optimalization strategy change */
45 #define FFS_MAXID 6 /* number of valid ffs ids */
46
47 #define FFS_NAMES { \
48 { 0, 0 }, \
49 { "doclusterread", CTLTYPE_INT }, \
50 { "doclusterwrite", CTLTYPE_INT }, \
51 { "doreallocblks", CTLTYPE_INT }, \
52 { "doasyncfree", CTLTYPE_INT }, \
53 { "log_changeopt", CTLTYPE_INT }, \
54 }
55
56 struct buf;
57 struct fid;
58 struct fs;
59 struct inode;
60 struct ufs1_dinode;
61 struct ufs2_dinode;
62 struct mount;
63 struct nameidata;
64 struct proc;
65 struct statvfs;
66 struct timeval;
67 struct timespec;
68 struct ucred;
69 struct ufsmount;
70 struct uio;
71 struct vnode;
72 struct mbuf;
73 struct cg;
74
75 extern struct pool ffs_inode_pool; /* memory pool for inodes */
76 extern struct pool ffs_dinode1_pool; /* memory pool for UFS1 dinodes */
77 extern struct pool ffs_dinode2_pool; /* memory pool for UFS2 dinodes */
78
79 __BEGIN_DECLS
80
81 /* ffs_alloc.c */
82 int ffs_alloc(struct inode *, daddr_t, daddr_t , int, struct ucred *,
83 daddr_t *);
84 int ffs_realloccg(struct inode *, daddr_t, daddr_t, int, int ,
85 struct ucred *, struct buf **, daddr_t *);
86 int ffs_reallocblks(void *);
87 int ffs_valloc(void *);
88 daddr_t ffs_blkpref_ufs1(struct inode *, daddr_t, int, int32_t *);
89 daddr_t ffs_blkpref_ufs2(struct inode *, daddr_t, int, int64_t *);
90 void ffs_blkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);
91 int ffs_vfree(void *);
92 void ffs_clusteracct(struct fs *, struct cg *, int32_t, int);
93 int ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
94
95 /* ffs_balloc.c */
96 int ffs_balloc(void *);
97
98 /* ffs_bswap.c */
99 void ffs_sb_swap(struct fs*, struct fs *);
100 void ffs_dinode1_swap(struct ufs1_dinode *, struct ufs1_dinode *);
101 void ffs_dinode2_swap(struct ufs2_dinode *, struct ufs2_dinode *);
102 void ffs_csum_swap(struct csum *, struct csum *, int);
103 void ffs_csumtotal_swap(struct csum_total *, struct csum_total *);
104 void ffs_cg_swap(struct cg *, struct cg *, struct fs *);
105
106 /* ffs_inode.c */
107 int ffs_update(void *);
108 int ffs_truncate(void *);
109
110 /* ffs_subr.c */
111 void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
112 int ffs_blkatoff(void *);
113 int ffs_freefile(struct fs *, struct vnode *, ino_t, int);
114 void ffs_fragacct(struct fs *, int, int32_t[], int, int);
115 #ifdef DIAGNOSTIC
116 void ffs_checkoverlap(struct buf *, struct inode *);
117 #endif
118 int ffs_isblock(struct fs *, u_char *, int32_t);
119 int ffs_isfreeblock(struct fs *, u_char *, int32_t);
120 void ffs_clrblock(struct fs *, u_char *, int32_t);
121 void ffs_setblock(struct fs *, u_char *, int32_t);
122
123 /* ffs_vfsops.c */
124 void ffs_init(void);
125 void ffs_reinit(void);
126 void ffs_done(void);
127 int ffs_mountroot(void);
128 int ffs_mount(struct mount *, const char *, void *, struct nameidata *,
129 struct proc *);
130 int ffs_reload(struct mount *, struct ucred *, struct proc *);
131 int ffs_mountfs(struct vnode *, struct mount *, struct proc *);
132 int ffs_unmount(struct mount *, int, struct proc *);
133 int ffs_flushfiles(struct mount *, int, struct proc *);
134 int ffs_statvfs(struct mount *, struct statvfs *, struct proc *);
135 int ffs_sync(struct mount *, int, struct ucred *, struct proc *);
136 int ffs_vget(struct mount *, ino_t, struct vnode **);
137 int ffs_fhtovp(struct mount *, struct fid *, struct vnode **);
138 int ffs_vptofh(struct vnode *, struct fid *);
139 int ffs_extattrctl(struct mount *, int, struct vnode *, int,
140 const char *, struct proc *);
141 int ffs_sbupdate(struct ufsmount *, int);
142 int ffs_cgupdate(struct ufsmount *, int);
143
144 /* ffs_appleufs.c */
145 u_int16_t ffs_appleufs_cksum(const struct appleufslabel *);
146 int ffs_appleufs_validate(const char*, const struct appleufslabel *,
147 struct appleufslabel *);
148 void ffs_appleufs_set(struct appleufslabel *, const char *, time_t,
149 uint64_t);
150
151
152 /* ffs_vnops.c */
153 int ffs_read(void *);
154 int ffs_write(void *);
155 int ffs_fsync(void *);
156 int ffs_reclaim(void *);
157 int ffs_getpages(void *);
158 int ffs_putpages(void *);
159 void ffs_gop_size(struct vnode *, off_t, off_t *, int);
160 int ffs_openextattr(void *);
161 int ffs_closeextattr(void *);
162 int ffs_getextattr(void *);
163 int ffs_setextattr(void *);
164 int ffs_listextattr(void *);
165 int ffs_deleteextattr(void *);
166
167 #ifdef SYSCTL_SETUP_PROTO
168 SYSCTL_SETUP_PROTO(sysctl_vfs_ffs_setup);
169 #endif /* SYSCTL_SETUP_PROTO */
170
171 __END_DECLS
172
173
174 /*
175 * Snapshot function prototypes.
176 */
177 int ffs_snapblkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);
178 void ffs_snapremove(struct vnode *);
179 int ffs_snapshot(struct mount *, struct vnode *, struct timespec *);
180 void ffs_snapshot_mount(struct mount *);
181 void ffs_snapshot_unmount(struct mount *);
182 void ffs_snapgone(struct inode *);
183
184 /*
185 * Soft dependency function prototypes.
186 */
187 void softdep_initialize(void);
188 void softdep_reinitialize(void);
189 int softdep_mount(struct vnode *, struct mount *, struct fs *,
190 struct ucred *);
191 int softdep_flushworklist(struct mount *, int *, struct proc *);
192 int softdep_flushfiles(struct mount *, int, struct proc *);
193 void softdep_update_inodeblock(struct inode *, struct buf *, int);
194 void softdep_load_inodeblock(struct inode *);
195 void softdep_freefile(void *);
196 void softdep_setup_freeblocks(struct inode *, off_t, int);
197 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
198 void softdep_setup_blkmapdep(struct buf *, struct fs *, daddr_t);
199 void softdep_setup_allocdirect(struct inode *, daddr_t, daddr_t,
200 daddr_t, long, long, struct buf *);
201 void softdep_setup_allocindir_meta(struct buf *, struct inode *,
202 struct buf *, int, daddr_t);
203 void softdep_setup_allocindir_page(struct inode *, daddr_t,
204 struct buf *, int, daddr_t, daddr_t,
205 struct buf *);
206 void softdep_fsync_mountdev(struct vnode *);
207 int softdep_sync_metadata(void *);
208
209 extern int (**ffs_vnodeop_p)(void *);
210 extern int (**ffs_specop_p)(void *);
211 extern int (**ffs_fifoop_p)(void *);
212
213 #endif /* !_UFS_FFS_FFS_EXTERN_H_ */
214