2 * SPDX-License-Identifier: BSD-3-Clause
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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 *, int);
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 int ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
70 void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
71 void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int);
72 void ffs_bdflush(struct bufobj *, struct buf *);
73 int ffs_copyonwrite(struct vnode *, struct buf *);
74 int ffs_flushfiles(struct mount *, int, struct thread *);
75 void ffs_fragacct(struct fs *, int, int32_t [], int);
76 int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t,
77 int, struct workhead *);
78 void ffs_fserr(struct fs *, ino_t, char *);
79 int ffs_getcg(struct fs *, struct vnode *, u_int, struct buf **,
81 int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
82 int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t);
83 void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
84 void ffs_oldfscompat_write(struct fs *, struct ufsmount *);
85 int ffs_own_mount(const struct mount *mp);
86 int ffs_reallocblks(struct vop_reallocblks_args *);
87 int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
88 ufs2_daddr_t, int, int, int, struct ucred *, struct buf **);
89 int ffs_reload(struct mount *, struct thread *, int);
90 int ffs_sbget(void *, struct fs **, off_t, struct malloc_type *,
91 int (*)(void *, off_t, void **, int));
92 int ffs_sbput(void *, struct fs *, off_t, int (*)(void *, off_t, void *,
94 int ffs_sbupdate(struct ufsmount *, int, int);
95 void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
96 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t,
97 enum vtype, struct workhead *);
98 void ffs_snapremove(struct vnode *vp);
99 int ffs_snapshot(struct mount *mp, char *snapfile);
100 void ffs_snapshot_mount(struct mount *mp);
101 void ffs_snapshot_unmount(struct mount *mp);
102 void ffs_susp_initialize(void);
103 void ffs_susp_uninitialize(void);
104 void ffs_sync_snap(struct mount *, int);
105 int ffs_syncvnode(struct vnode *vp, int waitfor, int flags);
106 int ffs_truncate(struct vnode *, off_t, int, struct ucred *);
107 int ffs_update(struct vnode *, int);
108 int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
109 int ffs_vfree(struct vnode *, ino_t, int);
111 int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int);
112 void process_deferred_inactive(struct mount *mp);
117 #define FFSV_FORCEINSMQ 0x0001
120 * Flags to ffs_reload
122 #define FFSR_FORCE 0x0001
123 #define FFSR_UNSUSPEND 0x0002
126 * Trim type to ffs_blkfree - used to help with BIO_DELETE (trim) requests
128 #define NOTRIM 1 /* never written, so don't call trim for it */
129 #define SINGLETON 2 /* only block being freed, so trim it now */
130 #define STARTFREE 3 /* beginning to free for this inum */
131 #define CONTINUEFREE 4 /* additional block free for this inum */
132 #define ENDFREE 5 /* last block to free for this inum */
134 #define MAXTRIMIO 1024 /* maximum expected outstanding trim requests */
136 extern struct vop_vector ffs_vnodeops1;
137 extern struct vop_vector ffs_fifoops1;
138 extern struct vop_vector ffs_vnodeops2;
139 extern struct vop_vector ffs_fifoops2;
142 * Soft update function prototypes.
145 int softdep_check_suspend(struct mount *, struct vnode *,
147 void softdep_get_depcounts(struct mount *, int *, int *);
148 void softdep_initialize(void);
149 void softdep_uninitialize(void);
150 int softdep_mount(struct vnode *, struct mount *, struct fs *,
152 void softdep_unmount(struct mount *);
153 int softdep_move_dependencies(struct buf *, struct buf *);
154 int softdep_flushworklist(struct mount *, int *, struct thread *);
155 int softdep_flushfiles(struct mount *, int, struct thread *);
156 void softdep_update_inodeblock(struct inode *, struct buf *, int);
157 void softdep_load_inodeblock(struct inode *);
158 void softdep_freefile(struct vnode *, ino_t, int);
159 int softdep_request_cleanup(struct fs *, struct vnode *,
160 struct ucred *, int);
161 void softdep_setup_freeblocks(struct inode *, off_t, int);
162 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int);
163 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t,
165 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
166 ufs2_daddr_t, long, long, struct buf *);
167 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
168 ufs2_daddr_t, long, long, struct buf *);
169 void softdep_setup_allocindir_meta(struct buf *, struct inode *,
170 struct buf *, int, ufs2_daddr_t);
171 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
172 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
173 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int,
175 void softdep_setup_inofree(struct mount *, struct buf *, ino_t,
177 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *);
178 void softdep_fsync_mountdev(struct vnode *);
179 int softdep_sync_metadata(struct vnode *);
180 int softdep_sync_buf(struct vnode *, struct buf *, int);
181 int softdep_fsync(struct vnode *);
182 int softdep_prealloc(struct vnode *, int);
183 int softdep_journal_lookup(struct mount *, struct vnode **);
184 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int);
185 void softdep_journal_fsync(struct inode *);
186 void softdep_buf_append(struct buf *, struct workhead *);
187 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *);
188 void softdep_freework(struct workhead *);
192 * Things to request flushing in softdep_request_cleanup()
194 #define FLUSH_INODES 1
195 #define FLUSH_INODES_WAIT 2
196 #define FLUSH_BLOCKS 3
197 #define FLUSH_BLOCKS_WAIT 4
199 * Flag to ffs_syncvnode() to request flushing of data only,
200 * but skip the ffs_update() on the inode itself. Used to avoid
201 * deadlock when flushing snapshot inodes while holding snaplk.
203 #define NO_INO_UPDT 0x00000001
205 * Request data sync only from ffs_syncvnode(), not touching even more
206 * metadata than NO_INO_UPDT.
208 #define DATA_ONLY 0x00000002
210 int ffs_rdonly(struct inode *);
212 TAILQ_HEAD(snaphead, inode);
215 LIST_ENTRY(snapdata) sn_link;
216 struct snaphead sn_head;
224 #endif /* !_UFS_FFS_EXTERN_H */