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 * @(#)ufs_extern.h 8.10 (Berkeley) 5/14/95 32 */ 33 34 #ifndef _UFS_UFS_EXTERN_H_ 35 #define _UFS_UFS_EXTERN_H_ 36 37 struct componentname; 38 struct direct; 39 struct indir; 40 struct inode; 41 struct mount; 42 struct thread; 43 struct sockaddr; 44 struct ucred; 45 struct ufid; 46 struct vfsconf; 47 struct vnode; 48 struct vop_bmap_args; 49 struct vop_cachedlookup_args; 50 struct vop_generic_args; 51 struct vop_inactive_args; 52 struct vop_reclaim_args; 53 54 extern struct vop_vector ufs_fifoops; 55 extern struct vop_vector ufs_vnodeops; 56 57 int ufs_bmap(struct vop_bmap_args *); 58 int ufs_bmaparray(struct vnode *, ufs2_daddr_t, ufs2_daddr_t *, 59 struct buf *, int *, int *); 60 int ufs_bmap_seekdata(struct vnode *, off_t *); 61 int ufs_checkpath(ino_t, ino_t, struct inode *, struct ucred *, ino_t *); 62 void ufs_dirbad(struct inode *, doff_t, char *); 63 int ufs_dirbadentry(struct vnode *, struct direct *, int); 64 int ufs_dirempty(struct inode *, ino_t, struct ucred *); 65 int ufs_extread(struct vop_read_args *); 66 int ufs_extwrite(struct vop_write_args *); 67 void ufs_makedirentry(struct inode *, struct componentname *, 68 struct direct *); 69 int ufs_direnter(struct vnode *, struct vnode *, struct direct *, 70 struct componentname *, struct buf *); 71 int ufs_dirremove(struct vnode *, struct inode *, int, int); 72 int ufs_dirrewrite(struct inode *, struct inode *, ino_t, int, int); 73 int ufs_lookup_ino(struct vnode *, struct vnode **, struct componentname *, 74 ino_t *); 75 int ufs_getlbns(struct vnode *, ufs2_daddr_t, struct indir *, int *); 76 int ufs_inactive(struct vop_inactive_args *); 77 int ufs_init(struct vfsconf *); 78 void ufs_itimes(struct vnode *vp); 79 int ufs_lookup(struct vop_cachedlookup_args *); 80 int ufs_need_inactive(struct vop_need_inactive_args *); 81 int ufs_readdir(struct vop_readdir_args *); 82 int ufs_reclaim(struct vop_reclaim_args *); 83 void ffs_snapgone(struct inode *); 84 vfs_root_t ufs_root; 85 int ufs_uninit(struct vfsconf *); 86 int ufs_vinit(struct mount *, struct vop_vector *, struct vnode **); 87 88 #include <sys/sysctl.h> 89 SYSCTL_DECL(_vfs_ufs); 90 91 /* 92 * Soft update function prototypes. 93 */ 94 int softdep_setup_directory_add(struct buf *, struct inode *, off_t, 95 ino_t, struct buf *, int); 96 void softdep_change_directoryentry_offset(struct buf *, struct inode *, 97 caddr_t, caddr_t, caddr_t, int); 98 void softdep_setup_remove(struct buf *,struct inode *, struct inode *, int); 99 void softdep_setup_directory_change(struct buf *, struct inode *, 100 struct inode *, ino_t, int); 101 void softdep_change_linkcnt(struct inode *); 102 int softdep_slowdown(struct vnode *); 103 void softdep_setup_create(struct inode *, struct inode *); 104 void softdep_setup_dotdot_link(struct inode *, struct inode *); 105 void softdep_setup_link(struct inode *, struct inode *); 106 void softdep_setup_mkdir(struct inode *, struct inode *); 107 void softdep_setup_rmdir(struct inode *, struct inode *); 108 void softdep_setup_unlink(struct inode *, struct inode *); 109 void softdep_revert_create(struct inode *, struct inode *); 110 void softdep_revert_link(struct inode *, struct inode *); 111 void softdep_revert_mkdir(struct inode *, struct inode *); 112 void softdep_revert_rmdir(struct inode *, struct inode *); 113 114 /* 115 * Flags to low-level allocation routines. The low 16-bits are reserved 116 * for IO_ flags from vnode.h. 117 * 118 * Note: The general vfs code typically limits the sequential heuristic 119 * count to 127. See sequential_heuristic() in kern/vfs_vnops.c 120 * 121 * The BA_CLRBUF flag specifies that the existing content of the block 122 * will not be completely overwritten by the caller, so buffers for new 123 * blocks must be cleared and buffers for existing blocks must be read. 124 * When BA_CLRBUF is not set the buffer will be completely overwritten 125 * and there is no reason to clear them or to spend I/O fetching existing 126 * data. The BA_CLRBUF flag is handled in the UFS_BALLOC() functions. 127 */ 128 #define BA_CLRBUF 0x00010000 /* Clear invalid areas of buffer. */ 129 #define BA_METAONLY 0x00020000 /* Return indirect block buffer. */ 130 #define BA_UNMAPPED 0x00040000 /* Do not mmap resulted buffer. */ 131 #define BA_SEQMASK 0x7F000000 /* Bits holding seq heuristic. */ 132 #define BA_SEQSHIFT 24 133 #define BA_SEQMAX 0x7F 134 135 #endif /* !_UFS_UFS_EXTERN_H_ */ 136