1 /*- 2 * modified for EXT2FS support in Lites 1.1 3 * 4 * Aug 1995, Godmar Back (gback@cs.utah.edu) 5 * University of Utah, Department of Computer Science 6 */ 7 /*- 8 * Copyright (c) 1991, 1993, 1994 9 * The Regents of the University of California. All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)ffs_extern.h 8.3 (Berkeley) 4/16/94 36 * $FreeBSD$ 37 */ 38 39 #ifndef _FS_EXT2FS_EXT2_EXTERN_H_ 40 #define _FS_EXT2FS_EXT2_EXTERN_H_ 41 42 struct ext2fs_dinode; 43 struct ext2fs_direct_2; 44 struct ext2fs_searchslot; 45 struct indir; 46 struct inode; 47 struct mount; 48 struct vfsconf; 49 struct vnode; 50 51 int ext2_add_entry(struct vnode *, struct ext2fs_direct_2 *); 52 int ext2_alloc(struct inode *, daddr_t, e4fs_daddr_t, int, 53 struct ucred *, e4fs_daddr_t *); 54 int ext2_balloc(struct inode *, 55 e2fs_lbn_t, int, struct ucred *, struct buf **, int); 56 int ext2_blkatoff(struct vnode *, off_t, char **, struct buf **); 57 void ext2_blkfree(struct inode *, e4fs_daddr_t, long); 58 e4fs_daddr_t ext2_blkpref(struct inode *, e2fs_lbn_t, int, e2fs_daddr_t *, 59 e2fs_daddr_t); 60 int ext2_bmap(struct vop_bmap_args *); 61 int ext2_bmaparray(struct vnode *, daddr_t, daddr_t *, int *, int *); 62 void ext2_clusteracct(struct m_ext2fs *, char *, int, daddr_t, int); 63 void ext2_dirbad(struct inode *ip, doff_t offset, char *how); 64 void ext2_ei2i(struct ext2fs_dinode *, struct inode *); 65 int ext2_getlbns(struct vnode *, daddr_t, struct indir *, int *); 66 void ext2_i2ei(struct inode *, struct ext2fs_dinode *); 67 void ext2_itimes(struct vnode *vp); 68 int ext2_reallocblks(struct vop_reallocblks_args *); 69 int ext2_reclaim(struct vop_reclaim_args *); 70 int ext2_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *); 71 int ext2_update(struct vnode *, int); 72 int ext2_valloc(struct vnode *, int, struct ucred *, struct vnode **); 73 int ext2_vfree(struct vnode *, ino_t, int); 74 int ext2_vinit(struct mount *, struct vop_vector *, struct vnode **vpp); 75 int ext2_lookup(struct vop_cachedlookup_args *); 76 int ext2_readdir(struct vop_readdir_args *); 77 #ifdef EXT2FS_DEBUG 78 void ext2_print_inode(struct inode *); 79 #endif 80 int ext2_direnter(struct inode *, 81 struct vnode *, struct componentname *); 82 int ext2_dirremove(struct vnode *, struct componentname *); 83 int ext2_dirrewrite(struct inode *, 84 struct inode *, struct componentname *); 85 int ext2_dirempty(struct inode *, ino_t, struct ucred *); 86 int ext2_checkpath(struct inode *, struct inode *, struct ucred *); 87 int cg_has_sb(int i); 88 int ext2_inactive(struct vop_inactive_args *); 89 int ext2_htree_add_entry(struct vnode *, struct ext2fs_direct_2 *, 90 struct componentname *); 91 int ext2_htree_create_index(struct vnode *, struct componentname *, 92 struct ext2fs_direct_2 *); 93 int ext2_htree_has_idx(struct inode *); 94 int ext2_htree_hash(const char *, int, uint32_t *, int, uint32_t *, 95 uint32_t *); 96 int ext2_htree_lookup(struct inode *, const char *, int, struct buf **, 97 int *, doff_t *, doff_t *, doff_t *, struct ext2fs_searchslot *); 98 int ext2_search_dirblock(struct inode *, void *, int *, const char *, int, 99 int *, doff_t *, doff_t *, doff_t *, struct ext2fs_searchslot *); 100 101 102 /* Flags to low-level allocation routines. 103 * The low 16-bits are reserved for IO_ flags from vnode.h. 104 */ 105 #define BA_CLRBUF 0x00010000 /* Clear invalid areas of buffer. */ 106 #define BA_SEQMASK 0x7F000000 /* Bits holding seq heuristic. */ 107 #define BA_SEQSHIFT 24 108 #define BA_SEQMAX 0x7F 109 110 extern struct vop_vector ext2_vnodeops; 111 extern struct vop_vector ext2_fifoops; 112 113 #endif /* !_FS_EXT2FS_EXT2_EXTERN_H_ */ 114