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 *); 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 **, 80 struct cg **); 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_sbupdate(struct ufsmount *, int, int); 91 void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t); 92 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t, 93 enum vtype, struct workhead *); 94 void ffs_snapremove(struct vnode *vp); 95 int ffs_snapshot(struct mount *mp, char *snapfile); 96 void ffs_snapshot_mount(struct mount *mp); 97 void ffs_snapshot_unmount(struct mount *mp); 98 void process_deferred_inactive(struct mount *mp); 99 void ffs_sync_snap(struct mount *, int); 100 int ffs_syncvnode(struct vnode *vp, int waitfor, int flags); 101 int ffs_truncate(struct vnode *, off_t, int, struct ucred *); 102 int ffs_update(struct vnode *, int); 103 int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **); 104 105 int ffs_vfree(struct vnode *, ino_t, int); 106 vfs_vget_t ffs_vget; 107 int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int); 108 void ffs_susp_initialize(void); 109 void ffs_susp_uninitialize(void); 110 111 #define FFSV_FORCEINSMQ 0x0001 112 113 #define FFSR_FORCE 0x0001 114 #define FFSR_UNSUSPEND 0x0002 115 116 extern struct vop_vector ffs_vnodeops1; 117 extern struct vop_vector ffs_fifoops1; 118 extern struct vop_vector ffs_vnodeops2; 119 extern struct vop_vector ffs_fifoops2; 120 121 /* 122 * Soft update function prototypes. 123 */ 124 125 int softdep_check_suspend(struct mount *, struct vnode *, 126 int, int, int, int); 127 void softdep_get_depcounts(struct mount *, int *, int *); 128 void softdep_initialize(void); 129 void softdep_uninitialize(void); 130 int softdep_mount(struct vnode *, struct mount *, struct fs *, 131 struct ucred *); 132 void softdep_unmount(struct mount *); 133 int softdep_move_dependencies(struct buf *, struct buf *); 134 int softdep_flushworklist(struct mount *, int *, struct thread *); 135 int softdep_flushfiles(struct mount *, int, struct thread *); 136 void softdep_update_inodeblock(struct inode *, struct buf *, int); 137 void softdep_load_inodeblock(struct inode *); 138 void softdep_freefile(struct vnode *, ino_t, int); 139 int softdep_request_cleanup(struct fs *, struct vnode *, 140 struct ucred *, int); 141 void softdep_setup_freeblocks(struct inode *, off_t, int); 142 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int); 143 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t, 144 int, int); 145 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t, 146 ufs2_daddr_t, long, long, struct buf *); 147 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t, 148 ufs2_daddr_t, long, long, struct buf *); 149 void softdep_setup_allocindir_meta(struct buf *, struct inode *, 150 struct buf *, int, ufs2_daddr_t); 151 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t, 152 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *); 153 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int, 154 struct workhead *); 155 void softdep_setup_inofree(struct mount *, struct buf *, ino_t, 156 struct workhead *); 157 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *); 158 void softdep_fsync_mountdev(struct vnode *); 159 int softdep_sync_metadata(struct vnode *); 160 int softdep_sync_buf(struct vnode *, struct buf *, int); 161 int softdep_fsync(struct vnode *); 162 int softdep_prealloc(struct vnode *, int); 163 int softdep_journal_lookup(struct mount *, struct vnode **); 164 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int); 165 void softdep_journal_fsync(struct inode *); 166 void softdep_buf_append(struct buf *, struct workhead *); 167 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *); 168 void softdep_freework(struct workhead *); 169 170 171 /* 172 * Things to request flushing in softdep_request_cleanup() 173 */ 174 #define FLUSH_INODES 1 175 #define FLUSH_INODES_WAIT 2 176 #define FLUSH_BLOCKS 3 177 #define FLUSH_BLOCKS_WAIT 4 178 /* 179 * Flag to ffs_syncvnode() to request flushing of data only, 180 * but skip the ffs_update() on the inode itself. Used to avoid 181 * deadlock when flushing snapshot inodes while holding snaplk. 182 */ 183 #define NO_INO_UPDT 0x00000001 184 /* 185 * Request data sync only from ffs_syncvnode(), not touching even more 186 * metadata than NO_INO_UPDT. 187 */ 188 #define DATA_ONLY 0x00000002 189 190 int ffs_rdonly(struct inode *); 191 192 TAILQ_HEAD(snaphead, inode); 193 194 struct snapdata { 195 LIST_ENTRY(snapdata) sn_link; 196 struct snaphead sn_head; 197 daddr_t sn_listsize; 198 daddr_t *sn_blklist; 199 struct lock sn_lock; 200 }; 201 202 #endif /* _KERNEL */ 203 204 #endif /* !_UFS_FFS_EXTERN_H */ 205