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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ufs_extern.h 8.10 (Berkeley) 5/14/95
* $FreeBSD$
*/
#ifndef _UFS_UFS_EXTERN_H_
#define _UFS_UFS_EXTERN_H_
struct componentname;
struct direct;
struct indir;
struct inode;
struct mount;
struct thread;
struct sockaddr;
struct ucred;
struct ufid;
struct vfsconf;
struct vnode;
struct vop_bmap_args;
struct vop_cachedlookup_args;
struct vop_generic_args;
struct vop_inactive_args;
struct vop_reclaim_args;
extern struct vop_vector ufs_fifoops;
extern struct vop_vector ufs_vnodeops;
int ufs_bmap(struct vop_bmap_args *);
int ufs_bmaparray(struct vnode *, ufs2_daddr_t, ufs2_daddr_t *,
struct buf *, int *, int *);
int ufs_bmap_seekdata(struct vnode *, off_t *);
int ufs_checkpath(ino_t, ino_t, struct inode *, struct ucred *, ino_t *);
void ufs_dirbad(struct inode *, doff_t, char *);
int ufs_dirbadentry(struct vnode *, struct direct *, int);
int ufs_dirempty(struct inode *, ino_t, struct ucred *);
int ufs_extread(struct vop_read_args *);
int ufs_extwrite(struct vop_write_args *);
void ufs_makedirentry(struct inode *, struct componentname *,
struct direct *);
int ufs_direnter(struct vnode *, struct vnode *, struct direct *,
struct componentname *, struct buf *);
int ufs_dirremove(struct vnode *, struct inode *, int, int);
int ufs_dirrewrite(struct inode *, struct inode *, ino_t, int, int);
int ufs_lookup_ino(struct vnode *, struct vnode **, struct componentname *,
ino_t *);
int ufs_getlbns(struct vnode *, ufs2_daddr_t, struct indir *, int *);
int ufs_inactive(struct vop_inactive_args *);
int ufs_init(struct vfsconf *);
void ufs_itimes(struct vnode *vp);
int ufs_lookup(struct vop_cachedlookup_args *);
int ufs_need_inactive(struct vop_need_inactive_args *);
int ufs_readdir(struct vop_readdir_args *);
int ufs_reclaim(struct vop_reclaim_args *);
void ffs_snapgone(struct inode *);
vfs_root_t ufs_root;
int ufs_uninit(struct vfsconf *);
int ufs_vinit(struct mount *, struct vop_vector *, struct vnode **);
#include <sys/sysctl.h>
SYSCTL_DECL(_vfs_ufs);
/*
* Soft update function prototypes.
*/
int softdep_setup_directory_add(struct buf *, struct inode *, off_t,
ino_t, struct buf *, int);
void softdep_change_directoryentry_offset(struct buf *, struct inode *,
caddr_t, caddr_t, caddr_t, int);
void softdep_setup_remove(struct buf *,struct inode *, struct inode *, int);
void softdep_setup_directory_change(struct buf *, struct inode *,
struct inode *, ino_t, int);
void softdep_change_linkcnt(struct inode *);
int softdep_slowdown(struct vnode *);
void softdep_setup_create(struct inode *, struct inode *);
void softdep_setup_dotdot_link(struct inode *, struct inode *);
void softdep_setup_link(struct inode *, struct inode *);
void softdep_setup_mkdir(struct inode *, struct inode *);
void softdep_setup_rmdir(struct inode *, struct inode *);
void softdep_setup_unlink(struct inode *, struct inode *);
void softdep_revert_create(struct inode *, struct inode *);
void softdep_revert_link(struct inode *, struct inode *);
void softdep_revert_mkdir(struct inode *, struct inode *);
void softdep_revert_rmdir(struct inode *, struct inode *);
/*
* Flags to low-level allocation routines. The low 16-bits are reserved
* for IO_ flags from vnode.h.
*
* Note: The general vfs code typically limits the sequential heuristic
* count to 127. See sequential_heuristic() in kern/vfs_vnops.c
*
* The BA_CLRBUF flag specifies that the existing content of the block
* will not be completely overwritten by the caller, so buffers for new
* blocks must be cleared and buffers for existing blocks must be read.
* When BA_CLRBUF is not set the buffer will be completely overwritten
* and there is no reason to clear them or to spend I/O fetching existing
* data. The BA_CLRBUF flag is handled in the UFS_BALLOC() functions.
*/
#define BA_CLRBUF 0x00010000 /* Clear invalid areas of buffer. */
#define BA_METAONLY 0x00020000 /* Return indirect block buffer. */
#define BA_UNMAPPED 0x00040000 /* Do not mmap resulted buffer. */
#define BA_SEQMASK 0x7F000000 /* Bits holding seq heuristic. */
#define BA_SEQSHIFT 24
#define BA_SEQMAX 0x7F
#endif /* !_UFS_UFS_EXTERN_H_ */
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