/*
* modified for EXT2FS support in Lites 1.1
*
* Aug 1995, Godmar Back (gback@cs.utah.edu)
* University of Utah, Department of Computer Science
*/
/*-
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)ffs_extern.h 8.3 (Berkeley) 4/16/94
* $FreeBSD$
*/
#ifndef _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
#define _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
struct ext2_inode;
struct indir;
struct inode;
struct mount;
struct vfsconf;
struct vnode;
int ext2_alloc(struct inode *,
int32_t, int32_t, int, struct ucred *, int32_t *);
int ext2_balloc(struct inode *,
int32_t, int, struct ucred *, struct buf **, int);
int ext2_blkatoff(struct vnode *, off_t, char **, struct buf **);
void ext2_blkfree(struct inode *, int32_t, long);
int32_t ext2_blkpref(struct inode *, int32_t, int, int32_t *, int32_t);
int ext2_bmap(struct vop_bmap_args *);
int ext2_bmaparray(struct vnode *, int32_t, int32_t *, int *, int *);
void ext2_dirbad(struct inode *ip, doff_t offset, char *how);
void ext2_ei2i(struct ext2_inode *, struct inode *);
int ext2_getlbns(struct vnode *, int32_t, struct indir *, int *);
void ext2_i2ei(struct inode *, struct ext2_inode *);
int ext2_ihashget(dev_t, ino_t, int, struct vnode **);
void ext2_ihashinit(void);
void ext2_ihashins(struct inode *);
struct vnode *
ext2_ihashlookup(dev_t, ino_t);
void ext2_ihashrem(struct inode *);
void ext2_ihashuninit(void);
void ext2_itimes(struct vnode *vp);
int ext2_reallocblks(struct vop_reallocblks_args *);
int ext2_reclaim(struct vop_reclaim_args *);
void ext2_setblock(struct ext2_sb_info *, u_char *, int32_t);
int ext2_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
int ext2_update(struct vnode *, int);
int ext2_valloc(struct vnode *, int, struct ucred *, struct vnode **);
int ext2_vfree(struct vnode *, ino_t, int);
int ext2_vinit(struct mount *, vop_t **, vop_t **, struct vnode **vpp);
int ext2_lookup(struct vop_cachedlookup_args *);
int ext2_readdir(struct vop_readdir_args *);
void ext2_print_inode(struct inode *);
int ext2_direnter(struct inode *,
struct vnode *, struct componentname *);
int ext2_dirremove(struct vnode *, struct componentname *);
int ext2_dirrewrite(struct inode *,
struct inode *, struct componentname *);
int ext2_dirempty(struct inode *, ino_t, struct ucred *);
int ext2_checkpath(struct inode *, struct inode *, struct ucred *);
struct ext2_group_desc * get_group_desc(struct mount * ,
unsigned int , struct buf ** );
int ext2_group_sparse(int group);
void ext2_discard_prealloc(struct inode *);
int ext2_inactive(struct vop_inactive_args *);
int ext2_new_block(struct mount * mp, unsigned long goal,
u_int32_t *prealloc_count, u_int32_t *prealloc_block);
ino_t ext2_new_inode(const struct inode * dir, int mode);
unsigned long ext2_count_free(struct buf *map, unsigned int numchars);
void ext2_free_blocks(struct mount *mp, unsigned long block,
unsigned long count);
void ext2_free_inode(struct inode * inode);
void mark_buffer_dirty(struct buf *bh);
/* Flags to low-level allocation routines. */
#define B_CLRBUF 0x01 /* Request allocated buffer be cleared. */
#define B_SYNC 0x02 /* Do all allocations synchronously. */
#define B_METAONLY 0x04 /* Return indirect block buffer. */
#define B_NOWAIT 0x08 /* do not sleep to await lock */
extern vop_t **ext2_vnodeop_p;
extern vop_t **ext2_specop_p;
extern vop_t **ext2_fifoop_p;
#endif /* !_SYS_GNU_EXT2FS_EXT2_EXTERN_H_ */
