2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1991, 1993, 1994
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8 * modification, are permitted provided that the following conditions
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31 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95
35 #ifndef _UFS_FFS_EXTERN_H
36 #define _UFS_FFS_EXTERN_H
39 #error "No user-serving parts inside"
54 struct vop_fsync_args;
55 struct vop_reallocblks_args;
58 int ffs_alloc(struct inode *, ufs2_daddr_t, ufs2_daddr_t, int, int,
59 struct ucred *, ufs2_daddr_t *);
60 int ffs_balloc_ufs1(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_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size,
63 struct ucred *a_cred, int a_flags, struct buf **a_bpp);
64 int ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
65 void ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *,
66 ufs2_daddr_t, long, ino_t, enum vtype, struct workhead *, u_long);
67 ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *);
68 ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *);
69 void ffs_blkrelease_finish(struct ufsmount *, u_long);
70 u_long ffs_blkrelease_start(struct ufsmount *, struct vnode *, ino_t);
71 uint32_t ffs_calc_sbhash(struct fs *);
72 int ffs_check_blkno(struct mount *, ino_t, ufs2_daddr_t, int);
73 int ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
74 void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
75 void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int);
76 void ffs_bdflush(struct bufobj *, struct buf *);
77 int ffs_copyonwrite(struct vnode *, struct buf *);
78 int ffs_flushfiles(struct mount *, int, struct thread *);
79 void ffs_fragacct(struct fs *, int, int32_t [], int);
80 int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t,
81 int, struct workhead *);
82 void ffs_fserr(struct fs *, ino_t, char *);
83 int ffs_getcg(struct fs *, struct vnode *, u_int, struct buf **,
85 int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
86 int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t);
87 int ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
88 void ffs_oldfscompat_write(struct fs *, struct ufsmount *);
89 int ffs_own_mount(const struct mount *mp);
90 int ffs_reallocblks(struct vop_reallocblks_args *);
91 int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
92 ufs2_daddr_t, int, int, int, struct ucred *, struct buf **);
93 int ffs_reload(struct mount *, struct thread *, int);
94 int ffs_sbget(void *, struct fs **, off_t, struct malloc_type *,
95 int (*)(void *, off_t, void **, int));
96 int ffs_sbput(void *, struct fs *, off_t, int (*)(void *, off_t, void *,
98 int ffs_sbupdate(struct ufsmount *, int, int);
99 void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
100 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t,
101 enum vtype, struct workhead *);
102 void ffs_snapremove(struct vnode *vp);
103 int ffs_snapshot(struct mount *mp, char *snapfile);
104 void ffs_snapshot_mount(struct mount *mp);
105 void ffs_snapshot_unmount(struct mount *mp);
106 void ffs_susp_initialize(void);
107 void ffs_susp_uninitialize(void);
108 void ffs_sync_snap(struct mount *, int);
109 int ffs_syncvnode(struct vnode *vp, int waitfor, int flags);
110 int ffs_truncate(struct vnode *, off_t, int, struct ucred *);
111 int ffs_update(struct vnode *, int);
112 void ffs_update_dinode_ckhash(struct fs *, struct ufs2_dinode *);
113 int ffs_verify_dinode_ckhash(struct fs *, struct ufs2_dinode *);
114 int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
115 int ffs_vfree(struct vnode *, ino_t, int);
117 int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int);
118 void process_deferred_inactive(struct mount *mp);
123 #define FFSV_FORCEINSMQ 0x0001
126 * Flags to ffs_reload
128 #define FFSR_FORCE 0x0001
129 #define FFSR_UNSUSPEND 0x0002
132 * Request standard superblock location in ffs_sbget
134 #define STDSB -1 /* Fail if check-hash is bad */
135 #define STDSB_NOHASHFAIL -2 /* Ignore check-hash failure */
138 * Definitions for TRIM interface
140 * Special keys and recommended hash table size
142 #define NOTRIM_KEY 1 /* never written, so don't call trim for it */
143 #define SINGLETON_KEY 2 /* only block being freed, so trim it now */
144 #define FIRST_VALID_KEY 3 /* first valid key describing a block range */
145 #define MAXTRIMIO 1024 /* maximum expected outstanding trim requests */
147 extern struct vop_vector ffs_vnodeops1;
148 extern struct vop_vector ffs_fifoops1;
149 extern struct vop_vector ffs_vnodeops2;
150 extern struct vop_vector ffs_fifoops2;
153 * Soft update function prototypes.
156 int softdep_check_suspend(struct mount *, struct vnode *,
158 void softdep_get_depcounts(struct mount *, int *, int *);
159 void softdep_initialize(void);
160 void softdep_uninitialize(void);
161 int softdep_mount(struct vnode *, struct mount *, struct fs *,
163 void softdep_unmount(struct mount *);
164 int softdep_move_dependencies(struct buf *, struct buf *);
165 int softdep_flushworklist(struct mount *, int *, struct thread *);
166 int softdep_flushfiles(struct mount *, int, struct thread *);
167 void softdep_update_inodeblock(struct inode *, struct buf *, int);
168 void softdep_load_inodeblock(struct inode *);
169 void softdep_freefile(struct vnode *, ino_t, int);
170 int softdep_request_cleanup(struct fs *, struct vnode *,
171 struct ucred *, int);
172 void softdep_setup_freeblocks(struct inode *, off_t, int);
173 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int);
174 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t,
176 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
177 ufs2_daddr_t, long, long, struct buf *);
178 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
179 ufs2_daddr_t, long, long, struct buf *);
180 void softdep_setup_allocindir_meta(struct buf *, struct inode *,
181 struct buf *, int, ufs2_daddr_t);
182 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
183 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
184 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int,
186 void softdep_setup_inofree(struct mount *, struct buf *, ino_t,
188 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *);
189 void softdep_fsync_mountdev(struct vnode *);
190 int softdep_sync_metadata(struct vnode *);
191 int softdep_sync_buf(struct vnode *, struct buf *, int);
192 int softdep_fsync(struct vnode *);
193 int softdep_prealloc(struct vnode *, int);
194 int softdep_journal_lookup(struct mount *, struct vnode **);
195 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int);
196 void softdep_journal_fsync(struct inode *);
197 void softdep_buf_append(struct buf *, struct workhead *);
198 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *);
199 void softdep_freework(struct workhead *);
203 * Things to request flushing in softdep_request_cleanup()
205 #define FLUSH_INODES 1
206 #define FLUSH_INODES_WAIT 2
207 #define FLUSH_BLOCKS 3
208 #define FLUSH_BLOCKS_WAIT 4
210 * Flag to ffs_syncvnode() to request flushing of data only,
211 * but skip the ffs_update() on the inode itself. Used to avoid
212 * deadlock when flushing snapshot inodes while holding snaplk.
214 #define NO_INO_UPDT 0x00000001
216 * Request data sync only from ffs_syncvnode(), not touching even more
217 * metadata than NO_INO_UPDT.
219 #define DATA_ONLY 0x00000002
221 int ffs_rdonly(struct inode *);
223 TAILQ_HEAD(snaphead, inode);
226 LIST_ENTRY(snapdata) sn_link;
227 struct snaphead sn_head;
235 #endif /* !_UFS_FFS_EXTERN_H */