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 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95 32 * $FreeBSD$ 33 */ 34 35 #ifndef _UFS_FFS_EXTERN_H 36 #define _UFS_FFS_EXTERN_H 37 38 #ifndef _KERNEL 39 #error "No user-serving parts inside" 40 #else 41 42 struct buf; 43 struct cg; 44 struct fid; 45 struct fs; 46 struct inode; 47 struct malloc_type; 48 struct mount; 49 struct thread; 50 struct sockaddr; 51 struct statfs; 52 struct ucred; 53 struct vnode; 54 struct vop_fsync_args; 55 struct vop_reallocblks_args; 56 struct workhead; 57 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_checkfreefile(struct fs *, struct vnode *, ino_t); 73 void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t); 74 void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int); 75 void ffs_bdflush(struct bufobj *, struct buf *); 76 int ffs_copyonwrite(struct vnode *, struct buf *); 77 int ffs_flushfiles(struct mount *, int, struct thread *); 78 void ffs_fragacct(struct fs *, int, int32_t [], int); 79 int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t, 80 int, struct workhead *); 81 void ffs_fserr(struct fs *, ino_t, char *); 82 int ffs_getcg(struct fs *, struct vnode *, u_int, struct buf **, 83 struct cg **); 84 int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t); 85 int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t); 86 int ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t); 87 void ffs_oldfscompat_write(struct fs *, struct ufsmount *); 88 int ffs_own_mount(const struct mount *mp); 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 *, struct thread *, int); 93 int ffs_sbget(void *, struct fs **, off_t, 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 *, u_char *, ufs1_daddr_t); 99 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t, 100 enum 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); 118 119 /* 120 * Flags to ffs_vgetf 121 */ 122 #define FFSV_FORCEINSMQ 0x0001 123 124 /* 125 * Flags to ffs_reload 126 */ 127 #define FFSR_FORCE 0x0001 128 #define FFSR_UNSUSPEND 0x0002 129 130 /* 131 * Request standard superblock location in ffs_sbget 132 */ 133 #define STDSB -1 /* Fail if check-hash is bad */ 134 #define STDSB_NOHASHFAIL -2 /* Ignore check-hash failure */ 135 136 /* 137 * Definitions for TRIM interface 138 * 139 * Special keys and recommended hash table size 140 */ 141 #define NOTRIM_KEY 1 /* never written, so don't call trim for it */ 142 #define SINGLETON_KEY 2 /* only block being freed, so trim it now */ 143 #define FIRST_VALID_KEY 3 /* first valid key describing a block range */ 144 #define MAXTRIMIO 1024 /* maximum expected outstanding trim requests */ 145 146 extern struct vop_vector ffs_vnodeops1; 147 extern struct vop_vector ffs_fifoops1; 148 extern struct vop_vector ffs_vnodeops2; 149 extern struct vop_vector ffs_fifoops2; 150 151 /* 152 * Soft update function prototypes. 153 */ 154 155 int softdep_check_suspend(struct mount *, struct vnode *, 156 int, int, int, int); 157 void softdep_get_depcounts(struct mount *, int *, int *); 158 void softdep_initialize(void); 159 void softdep_uninitialize(void); 160 int softdep_mount(struct vnode *, struct mount *, struct fs *, 161 struct ucred *); 162 void softdep_unmount(struct mount *); 163 int softdep_move_dependencies(struct buf *, struct buf *); 164 int softdep_flushworklist(struct mount *, int *, struct thread *); 165 int softdep_flushfiles(struct mount *, int, struct thread *); 166 void softdep_update_inodeblock(struct inode *, struct buf *, int); 167 void softdep_load_inodeblock(struct inode *); 168 void softdep_freefile(struct vnode *, ino_t, int); 169 int softdep_request_cleanup(struct fs *, struct vnode *, 170 struct ucred *, int); 171 void softdep_setup_freeblocks(struct inode *, off_t, int); 172 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int); 173 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t, 174 int, int); 175 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t, 176 ufs2_daddr_t, long, long, struct buf *); 177 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t, 178 ufs2_daddr_t, long, long, struct buf *); 179 void softdep_setup_allocindir_meta(struct buf *, struct inode *, 180 struct buf *, int, ufs2_daddr_t); 181 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t, 182 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *); 183 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int, 184 struct workhead *); 185 void softdep_setup_inofree(struct mount *, struct buf *, ino_t, 186 struct workhead *); 187 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *); 188 void softdep_fsync_mountdev(struct vnode *); 189 int softdep_sync_metadata(struct vnode *); 190 int softdep_sync_buf(struct vnode *, struct buf *, int); 191 int softdep_fsync(struct vnode *); 192 int softdep_prealloc(struct vnode *, int); 193 int softdep_journal_lookup(struct mount *, struct vnode **); 194 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int); 195 void softdep_journal_fsync(struct inode *); 196 void softdep_buf_append(struct buf *, struct workhead *); 197 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *); 198 void softdep_freework(struct workhead *); 199 200 201 /* 202 * Things to request flushing in softdep_request_cleanup() 203 */ 204 #define FLUSH_INODES 1 205 #define FLUSH_INODES_WAIT 2 206 #define FLUSH_BLOCKS 3 207 #define FLUSH_BLOCKS_WAIT 4 208 /* 209 * Flag to ffs_syncvnode() to request flushing of data only, 210 * but skip the ffs_update() on the inode itself. Used to avoid 211 * deadlock when flushing snapshot inodes while holding snaplk. 212 */ 213 #define NO_INO_UPDT 0x00000001 214 /* 215 * Request data sync only from ffs_syncvnode(), not touching even more 216 * metadata than NO_INO_UPDT. 217 */ 218 #define DATA_ONLY 0x00000002 219 220 int ffs_rdonly(struct inode *); 221 222 TAILQ_HEAD(snaphead, inode); 223 224 struct snapdata { 225 LIST_ENTRY(snapdata) sn_link; 226 struct snaphead sn_head; 227 daddr_t sn_listsize; 228 daddr_t *sn_blklist; 229 struct lock sn_lock; 230 }; 231 232 #endif /* _KERNEL */ 233 234 #endif /* !_UFS_FFS_EXTERN_H */ 235