1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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 32 #ifndef _UFS_FFS_EXTERN_H 33 #define _UFS_FFS_EXTERN_H 34 35 #ifndef _KERNEL 36 #error "No user-serving parts inside" 37 #else 38 39 struct buf; 40 struct cg; 41 struct fid; 42 struct fs; 43 struct inode; 44 struct malloc_type; 45 struct mount; 46 struct thread; 47 struct sockaddr; 48 struct statfs; 49 struct ucred; 50 struct vnode; 51 struct vop_fsync_args; 52 struct vop_reallocblks_args; 53 struct workhead; 54 55 int ffs_alloc(struct inode *, ufs2_daddr_t, ufs2_daddr_t, int, int, 56 struct ucred *, ufs2_daddr_t *); 57 int ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size, 58 struct ucred *a_cred, int a_flags, struct buf **a_bpp); 59 int ffs_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size, 60 struct ucred *a_cred, int a_flags, struct buf **a_bpp); 61 void ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *, 62 ufs2_daddr_t, long, ino_t, __enum_uint8(vtype), struct workhead *, 63 uint64_t); 64 ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *); 65 ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *); 66 void ffs_blkrelease_finish(struct ufsmount *, uint64_t); 67 uint64_t ffs_blkrelease_start(struct ufsmount *, struct vnode *, ino_t); 68 uint32_t ffs_calc_sbhash(struct fs *); 69 int ffs_checkfreefile(struct fs *, struct vnode *, ino_t); 70 void ffs_clrblock(struct fs *, uint8_t *, 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 *, uint64_t, int, struct buf **, 80 struct cg **); 81 int ffs_inotovp(struct mount *, ino_t, uint64_t, int, struct vnode **, 82 int); 83 int ffs_isblock(struct fs *, uint8_t *, ufs1_daddr_t); 84 int ffs_isfreeblock(struct fs *, uint8_t *, ufs1_daddr_t); 85 void ffs_oldfscompat_write(struct fs *, struct ufsmount *); 86 int ffs_own_mount(const struct mount *mp); 87 int ffs_sbsearch(void *, struct fs **, int, struct malloc_type *, 88 int (*)(void *, off_t, void **, int)); 89 int ffs_reallocblks(struct vop_reallocblks_args *); 90 int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t, 91 ufs2_daddr_t, int, int, int, struct ucred *, struct buf **); 92 int ffs_reload(struct mount *, int); 93 int ffs_sbget(void *, struct fs **, off_t, int, struct malloc_type *, 94 int (*)(void *, off_t, void **, int)); 95 int ffs_sbput(void *, struct fs *, off_t, int (*)(void *, off_t, void *, 96 int)); 97 int ffs_sbupdate(struct ufsmount *, int, int); 98 void ffs_setblock(struct fs *, uint8_t *, ufs1_daddr_t); 99 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t, 100 __enum_uint8(vtype), struct workhead *); 101 void ffs_snapremove(struct vnode *vp); 102 int ffs_snapshot(struct mount *mp, char *snapfile); 103 void ffs_snapshot_mount(struct mount *mp); 104 void ffs_snapshot_unmount(struct mount *mp); 105 void ffs_susp_initialize(void); 106 void ffs_susp_uninitialize(void); 107 void ffs_sync_snap(struct mount *, int); 108 int ffs_syncvnode(struct vnode *vp, int waitfor, int flags); 109 int ffs_truncate(struct vnode *, off_t, int, struct ucred *); 110 int ffs_update(struct vnode *, int); 111 void ffs_update_dinode_ckhash(struct fs *, struct ufs2_dinode *); 112 int ffs_verify_dinode_ckhash(struct fs *, struct ufs2_dinode *); 113 int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **); 114 int ffs_vfree(struct vnode *, ino_t, int); 115 vfs_vget_t ffs_vget; 116 int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int); 117 void process_deferred_inactive(struct mount *mp); 118 int ffs_fsfail_cleanup(struct ufsmount *, int); 119 int ffs_fsfail_cleanup_locked(struct ufsmount *, int); 120 int ffs_breadz(struct ufsmount *, struct vnode *, daddr_t, daddr_t, int, 121 daddr_t *, int *, int, struct ucred *, int, void (*)(struct buf *), 122 struct buf **); 123 124 /* 125 * Flags to ffs_vgetf 126 */ 127 #define FFSV_FORCEINSMQ 0x0001 /* Force insertion into mount list */ 128 #define FFSV_REPLACE 0x0002 /* Replace existing vnode */ 129 #define FFSV_REPLACE_DOOMED 0x0004 /* Replace existing vnode if it is 130 doomed */ 131 #define FFSV_FORCEINODEDEP 0x0008 /* Force allocation of inodedep, ignore 132 MNT_SOFTDEP */ 133 #define FFSV_NEWINODE 0x0010 /* Newly allocated inode */ 134 135 /* 136 * Flags to ffs_reload 137 */ 138 #define FFSR_FORCE 0x0001 139 #define FFSR_UNSUSPEND 0x0002 140 141 /* 142 * Definitions for TRIM interface 143 * 144 * Special keys and recommended hash table size 145 */ 146 #define NOTRIM_KEY 1 /* never written, so don't call trim for it */ 147 #define SINGLETON_KEY 2 /* only block being freed, so trim it now */ 148 #define FIRST_VALID_KEY 3 /* first valid key describing a block range */ 149 #define MAXTRIMIO 1024 /* maximum expected outstanding trim requests */ 150 151 extern struct vop_vector ffs_vnodeops1; 152 extern struct vop_vector ffs_fifoops1; 153 extern struct vop_vector ffs_vnodeops2; 154 extern struct vop_vector ffs_fifoops2; 155 156 /* 157 * Soft update function prototypes. 158 */ 159 160 int softdep_check_suspend(struct mount *, struct vnode *, 161 int, int, int, int); 162 void softdep_get_depcounts(struct mount *, int *, int *); 163 void softdep_initialize(void); 164 void softdep_uninitialize(void); 165 int softdep_mount(struct vnode *, struct mount *, struct fs *, 166 struct ucred *); 167 void softdep_unmount(struct mount *); 168 void softdep_handle_error(struct buf *); 169 int softdep_move_dependencies(struct buf *, struct buf *); 170 int softdep_flushworklist(struct mount *, int *, struct thread *); 171 int softdep_flushfiles(struct mount *, int, struct thread *); 172 void softdep_update_inodeblock(struct inode *, struct buf *, int); 173 void softdep_load_inodeblock(struct inode *); 174 void softdep_freefile(struct vnode *, ino_t, int); 175 int softdep_request_cleanup(struct fs *, struct vnode *, 176 struct ucred *, int); 177 int softdep_prerename(struct vnode *, struct vnode *, struct vnode *, 178 struct vnode *); 179 int softdep_prelink(struct vnode *, struct vnode *, 180 struct componentname *); 181 void softdep_setup_freeblocks(struct inode *, off_t, int); 182 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int); 183 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t, 184 int, int); 185 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t, 186 ufs2_daddr_t, long, long, struct buf *); 187 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t, 188 ufs2_daddr_t, long, long, struct buf *); 189 void softdep_setup_allocindir_meta(struct buf *, struct inode *, 190 struct buf *, int, ufs2_daddr_t); 191 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t, 192 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *); 193 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int, 194 struct workhead *, bool); 195 void softdep_setup_inofree(struct mount *, struct buf *, ino_t, 196 struct workhead *, bool); 197 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *); 198 void softdep_fsync_mountdev(struct vnode *); 199 int softdep_sync_metadata(struct vnode *); 200 int softdep_sync_buf(struct vnode *, struct buf *, int); 201 int softdep_fsync(struct vnode *); 202 int softdep_prealloc(struct vnode *, int); 203 int softdep_journal_lookup(struct mount *, struct vnode **); 204 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int); 205 void softdep_journal_fsync(struct inode *); 206 void softdep_buf_append(struct buf *, struct workhead *); 207 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *); 208 void softdep_freework(struct workhead *); 209 210 /* 211 * Things to request flushing in softdep_request_cleanup() 212 */ 213 #define FLUSH_INODES 1 214 #define FLUSH_INODES_WAIT 2 215 #define FLUSH_BLOCKS 3 216 #define FLUSH_BLOCKS_WAIT 4 217 /* 218 * Flag to ffs_syncvnode() to request flushing of data only, 219 * but skip the ffs_update() on the inode itself. Used to avoid 220 * deadlock when flushing snapshot inodes while holding snaplk. 221 */ 222 #define NO_INO_UPDT 0x00000001 223 /* 224 * Request data sync only from ffs_syncvnode(), not touching even more 225 * metadata than NO_INO_UPDT. 226 */ 227 #define DATA_ONLY 0x00000002 228 229 int ffs_rdonly(struct inode *); 230 231 TAILQ_HEAD(snaphead, inode); 232 233 struct snapdata { 234 LIST_ENTRY(snapdata) sn_link; 235 struct snaphead sn_head; 236 daddr_t sn_listsize; 237 daddr_t *sn_blklist; 238 struct lock sn_lock; 239 }; 240 241 #endif /* _KERNEL */ 242 243 #endif /* !_UFS_FFS_EXTERN_H */ 244