9504abaad7
shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
116 lines
5.1 KiB
C
116 lines
5.1 KiB
C
/*
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* modified for EXT2FS support in Lites 1.1
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*
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* Aug 1995, Godmar Back (gback@cs.utah.edu)
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* University of Utah, Department of Computer Science
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*/
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/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ffs_extern.h 8.3 (Berkeley) 4/16/94
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* $FreeBSD$
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*/
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#ifndef _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
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#define _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
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struct ext2_inode;
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struct indir;
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struct inode;
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struct mount;
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struct vfsconf;
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struct vnode;
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int ext2_alloc(struct inode *,
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daddr_t, daddr_t, int, struct ucred *, daddr_t *);
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int ext2_balloc(struct inode *,
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daddr_t, int, struct ucred *, struct buf **, int);
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int ext2_blkatoff(struct vnode *, off_t, char **, struct buf **);
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void ext2_blkfree(struct inode *, daddr_t, long);
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daddr_t ext2_blkpref(struct inode *, daddr_t, int, daddr_t *, daddr_t);
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int ext2_bmap(struct vop_bmap_args *);
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int ext2_bmaparray(struct vnode *, daddr_t, daddr_t *, int *, int *);
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void ext2_dirbad(struct inode *ip, doff_t offset, char *how);
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void ext2_ei2i(struct ext2_inode *, struct inode *);
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int ext2_getlbns(struct vnode *, daddr_t, struct indir *, int *);
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void ext2_i2ei(struct inode *, struct ext2_inode *);
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int ext2_ihashget(dev_t, ino_t, int, struct vnode **);
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void ext2_ihashinit(void);
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void ext2_ihashins(struct inode *);
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struct vnode *
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ext2_ihashlookup(dev_t, ino_t);
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void ext2_ihashrem(struct inode *);
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void ext2_itimes(struct vnode *vp);
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int ext2_reallocblks(struct vop_reallocblks_args *);
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int ext2_reclaim(struct vop_reclaim_args *);
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void ext2_setblock(struct ext2_sb_info *, u_char *, daddr_t);
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int ext2_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
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int ext2_update(struct vnode *, int);
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int ext2_valloc(struct vnode *, int, struct ucred *, struct vnode **);
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int ext2_vfree(struct vnode *, ino_t, int);
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int ext2_vinit(struct mount *, vop_t **, vop_t **, struct vnode **vpp);
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int ext2_lookup(struct vop_cachedlookup_args *);
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int ext2_readdir(struct vop_readdir_args *);
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void ext2_print_inode(struct inode *);
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int ext2_direnter(struct inode *,
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struct vnode *, struct componentname *);
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int ext2_dirremove(struct vnode *, struct componentname *);
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int ext2_dirrewrite(struct inode *,
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struct inode *, struct componentname *);
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int ext2_dirempty(struct inode *, ino_t, struct ucred *);
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int ext2_checkpath(struct inode *, struct inode *, struct ucred *);
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struct ext2_group_desc * get_group_desc(struct mount * ,
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unsigned int , struct buf ** );
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int ext2_group_sparse(int group);
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void ext2_discard_prealloc(struct inode *);
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int ext2_inactive(struct vop_inactive_args *);
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int ext2_new_block(struct mount * mp, unsigned long goal,
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u_int32_t *prealloc_count, u_int32_t *prealloc_block);
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ino_t ext2_new_inode(const struct inode * dir, int mode);
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unsigned long ext2_count_free(struct buf *map, unsigned int numchars);
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void ext2_free_blocks(struct mount *mp, unsigned long block,
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unsigned long count);
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void ext2_free_inode(struct inode * inode);
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void mark_buffer_dirty(struct buf *bh);
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/* Flags to low-level allocation routines. */
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#define B_CLRBUF 0x01 /* Request allocated buffer be cleared. */
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#define B_SYNC 0x02 /* Do all allocations synchronously. */
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#define B_METAONLY 0x04 /* Return indirect block buffer. */
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#define B_NOWAIT 0x08 /* do not sleep to await lock */
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extern vop_t **ext2_vnodeop_p;
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extern vop_t **ext2_specop_p;
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extern vop_t **ext2_fifoop_p;
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#endif /* !_SYS_GNU_EXT2FS_EXT2_EXTERN_H_ */
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