1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95 30 * $FreeBSD$ 31 */ 32 33 #ifndef _UFS_FFS_EXTERN_H 34 #define _UFS_FFS_EXTERN_H 35 36 #ifndef _KERNEL 37 #error "No user-serving parts inside" 38 #else 39 40 struct buf; 41 struct cg; 42 struct fid; 43 struct fs; 44 struct inode; 45 struct malloc_type; 46 struct mount; 47 struct thread; 48 struct sockaddr; 49 struct statfs; 50 struct ucred; 51 struct vnode; 52 struct vop_fsync_args; 53 struct vop_reallocblks_args; 54 struct workhead; 55 56 int ffs_alloc(struct inode *, ufs2_daddr_t, ufs2_daddr_t, int, int, 57 struct ucred *, ufs2_daddr_t *); 58 int ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size, 59 struct ucred *a_cred, int a_flags, struct buf **a_bpp); 60 int ffs_balloc_ufs2(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_blkatoff(struct vnode *, off_t, char **, struct buf **); 63 void ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *, 64 ufs2_daddr_t, long, ino_t, enum vtype, struct workhead *); 65 ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *); 66 ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *); 67 int ffs_checkfreefile(struct fs *, struct vnode *, ino_t); 68 void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t); 69 void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int); 70 void ffs_bdflush(struct bufobj *, struct buf *); 71 int ffs_copyonwrite(struct vnode *, struct buf *); 72 int ffs_flushfiles(struct mount *, int, struct thread *); 73 void ffs_fragacct(struct fs *, int, int32_t [], int); 74 int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t, 75 int, struct workhead *); 76 void ffs_fserr(struct fs *, ino_t, char *); 77 int ffs_getcg(struct fs *, struct vnode *, u_int, struct buf **, 78 struct cg **); 79 int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t); 80 int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t); 81 void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t); 82 void ffs_oldfscompat_write(struct fs *, struct ufsmount *); 83 int ffs_own_mount(const struct mount *mp); 84 int ffs_reallocblks(struct vop_reallocblks_args *); 85 int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t, 86 ufs2_daddr_t, int, int, int, struct ucred *, struct buf **); 87 int ffs_reload(struct mount *, struct thread *, int); 88 int ffs_sbupdate(struct ufsmount *, int, int); 89 void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t); 90 int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t, 91 enum vtype, struct workhead *); 92 void ffs_snapremove(struct vnode *vp); 93 int ffs_snapshot(struct mount *mp, char *snapfile); 94 void ffs_snapshot_mount(struct mount *mp); 95 void ffs_snapshot_unmount(struct mount *mp); 96 void process_deferred_inactive(struct mount *mp); 97 void ffs_sync_snap(struct mount *, int); 98 int ffs_syncvnode(struct vnode *vp, int waitfor, int flags); 99 int ffs_truncate(struct vnode *, off_t, int, struct ucred *); 100 int ffs_update(struct vnode *, int); 101 int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **); 102 103 int ffs_vfree(struct vnode *, ino_t, int); 104 vfs_vget_t ffs_vget; 105 int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int); 106 void ffs_susp_initialize(void); 107 void ffs_susp_uninitialize(void); 108 109 #define FFSV_FORCEINSMQ 0x0001 110 111 #define FFSR_FORCE 0x0001 112 #define FFSR_UNSUSPEND 0x0002 113 114 extern struct vop_vector ffs_vnodeops1; 115 extern struct vop_vector ffs_fifoops1; 116 extern struct vop_vector ffs_vnodeops2; 117 extern struct vop_vector ffs_fifoops2; 118 119 /* 120 * Soft update function prototypes. 121 */ 122 123 int softdep_check_suspend(struct mount *, struct vnode *, 124 int, int, int, int); 125 void softdep_get_depcounts(struct mount *, int *, int *); 126 void softdep_initialize(void); 127 void softdep_uninitialize(void); 128 int softdep_mount(struct vnode *, struct mount *, struct fs *, 129 struct ucred *); 130 void softdep_unmount(struct mount *); 131 int softdep_move_dependencies(struct buf *, struct buf *); 132 int softdep_flushworklist(struct mount *, int *, struct thread *); 133 int softdep_flushfiles(struct mount *, int, struct thread *); 134 void softdep_update_inodeblock(struct inode *, struct buf *, int); 135 void softdep_load_inodeblock(struct inode *); 136 void softdep_freefile(struct vnode *, ino_t, int); 137 int softdep_request_cleanup(struct fs *, struct vnode *, 138 struct ucred *, int); 139 void softdep_setup_freeblocks(struct inode *, off_t, int); 140 void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int); 141 void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t, 142 int, int); 143 void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t, 144 ufs2_daddr_t, long, long, struct buf *); 145 void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t, 146 ufs2_daddr_t, long, long, struct buf *); 147 void softdep_setup_allocindir_meta(struct buf *, struct inode *, 148 struct buf *, int, ufs2_daddr_t); 149 void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t, 150 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *); 151 void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int, 152 struct workhead *); 153 void softdep_setup_inofree(struct mount *, struct buf *, ino_t, 154 struct workhead *); 155 void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *); 156 void softdep_fsync_mountdev(struct vnode *); 157 int softdep_sync_metadata(struct vnode *); 158 int softdep_sync_buf(struct vnode *, struct buf *, int); 159 int softdep_fsync(struct vnode *); 160 int softdep_prealloc(struct vnode *, int); 161 int softdep_journal_lookup(struct mount *, struct vnode **); 162 void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int); 163 void softdep_journal_fsync(struct inode *); 164 void softdep_buf_append(struct buf *, struct workhead *); 165 void softdep_inode_append(struct inode *, struct ucred *, struct workhead *); 166 void softdep_freework(struct workhead *); 167 168 169 /* 170 * Things to request flushing in softdep_request_cleanup() 171 */ 172 #define FLUSH_INODES 1 173 #define FLUSH_INODES_WAIT 2 174 #define FLUSH_BLOCKS 3 175 #define FLUSH_BLOCKS_WAIT 4 176 /* 177 * Flag to ffs_syncvnode() to request flushing of data only, 178 * but skip the ffs_update() on the inode itself. Used to avoid 179 * deadlock when flushing snapshot inodes while holding snaplk. 180 */ 181 #define NO_INO_UPDT 0x00000001 182 /* 183 * Request data sync only from ffs_syncvnode(), not touching even more 184 * metadata than NO_INO_UPDT. 185 */ 186 #define DATA_ONLY 0x00000002 187 188 int ffs_rdonly(struct inode *); 189 190 TAILQ_HEAD(snaphead, inode); 191 192 struct snapdata { 193 LIST_ENTRY(snapdata) sn_link; 194 struct snaphead sn_head; 195 daddr_t sn_listsize; 196 daddr_t *sn_blklist; 197 struct lock sn_lock; 198 }; 199 200 #endif /* _KERNEL */ 201 202 #endif /* !_UFS_FFS_EXTERN_H */ 203