ffs_extern.h revision 262779
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 * 4. 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: stable/10/sys/ufs/ffs/ffs_extern.h 262779 2014-03-05 04:23:19Z pfg $ 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 40struct buf; 41struct cg; 42struct fid; 43struct fs; 44struct inode; 45struct malloc_type; 46struct mount; 47struct thread; 48struct sockaddr; 49struct statfs; 50struct ucred; 51struct vnode; 52struct vop_fsync_args; 53struct vop_reallocblks_args; 54struct workhead; 55 56int ffs_alloc(struct inode *, ufs2_daddr_t, ufs2_daddr_t, int, int, 57 struct ucred *, ufs2_daddr_t *); 58int 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); 60int 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); 62int ffs_blkatoff(struct vnode *, off_t, char **, struct buf **); 63void ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *, 64 ufs2_daddr_t, long, ino_t, enum vtype, struct workhead *); 65ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *); 66ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *); 67int ffs_checkfreefile(struct fs *, struct vnode *, ino_t); 68void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t); 69void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int); 70void ffs_bdflush(struct bufobj *, struct buf *); 71int ffs_copyonwrite(struct vnode *, struct buf *); 72int ffs_flushfiles(struct mount *, int, struct thread *); 73void ffs_fragacct(struct fs *, int, int32_t [], int); 74int ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t, 75 int, struct workhead *); 76void ffs_fserr(struct fs *, ino_t, char *); 77int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t); 78int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t); 79void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t); 80int ffs_mountroot(void); 81void ffs_oldfscompat_write(struct fs *, struct ufsmount *); 82int ffs_own_mount(const struct mount *mp); 83int ffs_reallocblks(struct vop_reallocblks_args *); 84int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t, 85 ufs2_daddr_t, int, int, int, struct ucred *, struct buf **); 86int ffs_reload(struct mount *, struct thread *, int); 87int ffs_sbupdate(struct ufsmount *, int, int); 88void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t); 89int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t, 90 enum vtype, struct workhead *); 91void ffs_snapremove(struct vnode *vp); 92int ffs_snapshot(struct mount *mp, char *snapfile); 93void ffs_snapshot_mount(struct mount *mp); 94void ffs_snapshot_unmount(struct mount *mp); 95void process_deferred_inactive(struct mount *mp); 96void ffs_sync_snap(struct mount *, int); 97int ffs_syncvnode(struct vnode *vp, int waitfor, int flags); 98int ffs_truncate(struct vnode *, off_t, int, struct ucred *); 99int ffs_update(struct vnode *, int); 100int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **); 101 102int ffs_vfree(struct vnode *, ino_t, int); 103vfs_vget_t ffs_vget; 104int ffs_vgetf(struct mount *, ino_t, int, struct vnode **, int); 105void ffs_susp_initialize(void); 106void ffs_susp_uninitialize(void); 107 108#define FFSV_FORCEINSMQ 0x0001 109 110extern struct vop_vector ffs_vnodeops1; 111extern struct vop_vector ffs_fifoops1; 112extern struct vop_vector ffs_vnodeops2; 113extern struct vop_vector ffs_fifoops2; 114 115/* 116 * Soft update function prototypes. 117 */ 118 119int softdep_check_suspend(struct mount *, struct vnode *, 120 int, int, int, int); 121void softdep_get_depcounts(struct mount *, int *, int *); 122void softdep_initialize(void); 123void softdep_uninitialize(void); 124int softdep_mount(struct vnode *, struct mount *, struct fs *, 125 struct ucred *); 126void softdep_unmount(struct mount *); 127int softdep_move_dependencies(struct buf *, struct buf *); 128int softdep_flushworklist(struct mount *, int *, struct thread *); 129int softdep_flushfiles(struct mount *, int, struct thread *); 130void softdep_update_inodeblock(struct inode *, struct buf *, int); 131void softdep_load_inodeblock(struct inode *); 132void softdep_freefile(struct vnode *, ino_t, int); 133int softdep_request_cleanup(struct fs *, struct vnode *, 134 struct ucred *, int); 135void softdep_setup_freeblocks(struct inode *, off_t, int); 136void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t, int); 137void softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t, 138 int, int); 139void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t, 140 ufs2_daddr_t, long, long, struct buf *); 141void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t, 142 ufs2_daddr_t, long, long, struct buf *); 143void softdep_setup_allocindir_meta(struct buf *, struct inode *, 144 struct buf *, int, ufs2_daddr_t); 145void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t, 146 struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *); 147void softdep_setup_blkfree(struct mount *, struct buf *, ufs2_daddr_t, int, 148 struct workhead *); 149void softdep_setup_inofree(struct mount *, struct buf *, ino_t, 150 struct workhead *); 151void softdep_setup_sbupdate(struct ufsmount *, struct fs *, struct buf *); 152void softdep_fsync_mountdev(struct vnode *); 153int softdep_sync_metadata(struct vnode *); 154int softdep_sync_buf(struct vnode *, struct buf *, int); 155int softdep_fsync(struct vnode *); 156int softdep_prealloc(struct vnode *, int); 157int softdep_journal_lookup(struct mount *, struct vnode **); 158void softdep_journal_freeblocks(struct inode *, struct ucred *, off_t, int); 159void softdep_journal_fsync(struct inode *); 160void softdep_buf_append(struct buf *, struct workhead *); 161void softdep_inode_append(struct inode *, struct ucred *, struct workhead *); 162void softdep_freework(struct workhead *); 163 164 165/* 166 * Things to request flushing in softdep_request_cleanup() 167 */ 168#define FLUSH_INODES 1 169#define FLUSH_INODES_WAIT 2 170#define FLUSH_BLOCKS 3 171#define FLUSH_BLOCKS_WAIT 4 172/* 173 * Flag to ffs_syncvnode() to request flushing of data only, 174 * but skip the ffs_update() on the inode itself. Used to avoid 175 * deadlock when flushing snapshot inodes while holding snaplk. 176 */ 177#define NO_INO_UPDT 0x00000001 178 179int ffs_rdonly(struct inode *); 180 181TAILQ_HEAD(snaphead, inode); 182 183struct snapdata { 184 LIST_ENTRY(snapdata) sn_link; 185 struct snaphead sn_head; 186 daddr_t sn_listsize; 187 daddr_t *sn_blklist; 188 struct lock sn_lock; 189}; 190 191#endif /* _KERNEL */ 192 193#endif /* !_UFS_FFS_EXTERN_H */ 194