1 /*-
2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95
30 * $FreeBSD: releng/10.0/sys/ufs/ffs/ffs_extern.h 243245 2012-11-18 18:57:19Z trasz $
31 */
32
33 #ifndef _UFS_FFS_EXTERN_H
34 #define _UFS_FFS_EXTERN_H
35
36 #ifndef _KERNEL
37 #error "No user-serving parts inside"
38 #else
39
40 struct buf;
41 struct cg;
42 struct fid;
43 struct fs;
44 struct inode;
45 struct malloc_type;
46 struct mount;
47 struct thread;
48 struct sockaddr;
49 struct statfs;
50 struct ucred;
51 struct vnode;
52 struct vop_fsync_args;
53 struct vop_reallocblks_args;
54 struct workhead;
55
56 int ffs_alloc(struct inode *, ufs2_daddr_t, ufs2_daddr_t, int, int,
57 struct ucred *, ufs2_daddr_t *);
58 int ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size,
59 struct ucred *a_cred, int a_flags, struct buf **a_bpp);
60 int ffs_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size,
61 struct ucred *a_cred, int a_flags, struct buf **a_bpp);
62 int ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
63 void ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *,
64 ufs2_daddr_t, long, ino_t, enum vtype, struct workhead *);
65 ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *);
66 ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *);
67 int ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
68 void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
69 void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int);
70 void ffs_bdflush(struct bufobj *, struct buf *);
71 int ffs_copyonwrite(struct vnode *, struct buf *);
72 int ffs_flushfiles(struct mount *, int, struct thread *);
73 void ffs_fragacct(struct fs *, int, int32_t [], int);
74 int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t,
75 int, struct workhead *);
76 void ffs_fserr(struct fs *, ino_t, char *);
77 int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
78 int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t);
79 void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
80 int ffs_mountroot(void);
81 void ffs_oldfscompat_write(struct fs *, struct ufsmount *);
82 int ffs_own_mount(const struct mount *mp);
83 int ffs_reallocblks(struct vop_reallocblks_args *);
84 int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
85 ufs2_daddr_t, int, int, int, struct ucred *, struct buf **);
86 int ffs_reload(struct mount *, struct thread *, int);
87 int ffs_sbupdate(struct ufsmount *, int, int);
88 void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
89 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t,
90 enum vtype, struct workhead *);
91 void ffs_snapremove(struct vnode *vp);
92 int ffs_snapshot(struct mount *mp, char *snapfile);
93 void ffs_snapshot_mount(struct mount *mp);
94 void ffs_snapshot_unmount(struct mount *mp);
95 void process_deferred_inactive(struct mount *mp);
96 void ffs_sync_snap(struct mount *, int);
97 int ffs_syncvnode(struct vnode *vp, int waitfor, int flags);
98 int ffs_truncate(struct vnode *, off_t, int, struct ucred *);
99 int ffs_update(struct vnode *, int);
100 int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
101
102 int ffs_vfree(struct vnode *, ino_t, int);
103 vfs_vget_t ffs_vget;
104 int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int);
105 void ffs_susp_initialize(void);
106 void ffs_susp_uninitialize(void);
107
108 #define FFSV_FORCEINSMQ 0x0001
109
110 extern struct vop_vector ffs_vnodeops1;
111 extern struct vop_vector ffs_fifoops1;
112 extern struct vop_vector ffs_vnodeops2;
113 extern struct vop_vector ffs_fifoops2;
114
115 /*
116 * Soft update function prototypes.
117 */
118
119 int softdep_check_suspend(struct mount *, struct vnode *,
120 int, int, int, int);
121 void softdep_get_depcounts(struct mount *, int *, int *);
122 void softdep_initialize(void);
123 void softdep_uninitialize(void);
124 int softdep_mount(struct vnode *, struct mount *, struct fs *,
125 struct ucred *);
126 void softdep_unmount(struct mount *);
127 int softdep_move_dependencies(struct buf *, struct buf *);
128 int softdep_flushworklist(struct mount *, int *, struct thread *);
129 int softdep_flushfiles(struct mount *, int, struct thread *);
130 void softdep_update_inodeblock(struct inode *, struct buf *, int);
131 void softdep_load_inodeblock(struct inode *);
132 void softdep_freefile(struct vnode *, ino_t, int);
133 int softdep_request_cleanup(struct fs *, struct vnode *,
134 struct ucred *, int);
135 void softdep_setup_freeblocks(struct inode *, off_t, int);
136 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int);
137 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t,
138 int, int);
139 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
140 ufs2_daddr_t, long, long, struct buf *);
141 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
142 ufs2_daddr_t, long, long, struct buf *);
143 void softdep_setup_allocindir_meta(struct buf *, struct inode *,
144 struct buf *, int, ufs2_daddr_t);
145 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
146 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
147 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int,
148 struct workhead *);
149 void softdep_setup_inofree(struct mount *, struct buf *, ino_t,
150 struct workhead *);
151 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *);
152 void softdep_fsync_mountdev(struct vnode *);
153 int softdep_sync_metadata(struct vnode *);
154 int softdep_sync_buf(struct vnode *, struct buf *, int);
155 int softdep_process_worklist(struct mount *, int);
156 int softdep_fsync(struct vnode *);
157 int softdep_waitidle(struct mount *);
158 int softdep_prealloc(struct vnode *, int);
159 int softdep_journal_lookup(struct mount *, struct vnode **);
160 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int);
161 void softdep_journal_fsync(struct inode *);
162 void softdep_buf_append(struct buf *, struct workhead *);
163 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *);
164 void softdep_freework(struct workhead *);
165
166
167 /*
168 * Things to request flushing in softdep_request_cleanup()
169 */
170 #define FLUSH_INODES 1
171 #define FLUSH_INODES_WAIT 2
172 #define FLUSH_BLOCKS 3
173 #define FLUSH_BLOCKS_WAIT 4
174 /*
175 * Flag to ffs_syncvnode() to request flushing of data only,
176 * but skip the ffs_update() on the inode itself. Used to avoid
177 * deadlock when flushing snapshot inodes while holding snaplk.
178 */
179 #define NO_INO_UPDT 0x00000001
180
181 int ffs_rdonly(struct inode *);
182
183 TAILQ_HEAD(snaphead, inode);
184
185 struct snapdata {
186 LIST_ENTRY(snapdata) sn_link;
187 struct snaphead sn_head;
188 daddr_t sn_listsize;
189 daddr_t *sn_blklist;
190 struct lock sn_lock;
191 };
192
193 #endif /* _KERNEL */
194
195 #endif /* !_UFS_FFS_EXTERN_H */
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