aec0fb7b40
initializations but we did have lofty goals and big ideals. Adjust to more contemporary circumstances and gain type checking. Replace the entire vop_t frobbing thing with properly typed structures. The only casualty is that we can not add a new VOP_ method with a loadable module. History has not given us reason to belive this would ever be feasible in the the first place. Eliminate in toto VOCALL(), vop_t, VNODEOP_SET() etc. Give coda correct prototypes and function definitions for all vop_()s. Generate a bit more data from the vnode_if.src file: a struct vop_vector and protype typedefs for all vop methods. Add a new vop_bypass() and make vop_default be a pointer to another struct vop_vector. Remove a lot of vfs_init since vop_vector is ready to use from the compiler. Cast various vop_mumble() to void * with uppercase name, for instance VOP_PANIC, VOP_NULL etc. Implement VCALL() by making vdesc_offset the offsetof() the relevant function pointer in vop_vector. This is disgusting but since the code is generated by a script comparatively safe. The alternative for nullfs etc. would be much worse. Fix up all vnode method vectors to remove casts so they become typesafe. (The bulk of this is generated by scripts)
112 lines
4.9 KiB
C
112 lines
4.9 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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* 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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int32_t, int32_t, int, struct ucred *, int32_t *);
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int ext2_balloc(struct inode *,
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int32_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 *, int32_t, long);
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int32_t ext2_blkpref(struct inode *, int32_t, int, int32_t *, int32_t);
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int ext2_bmap(struct vop_bmap_args *);
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int ext2_bmaparray(struct vnode *, int32_t, int32_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 *, int32_t, struct indir *, int *);
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void ext2_i2ei(struct inode *, struct ext2_inode *);
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int ext2_ihashget(struct cdev *, 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(struct cdev *, ino_t);
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void ext2_ihashrem(struct inode *);
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void ext2_ihashuninit(void);
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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 *, int32_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 *, struct vop_vector *, 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 struct vop_vector ext2_vnodeops;
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extern struct vop_vector ext2_fifoops;
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#endif /* !_SYS_GNU_EXT2FS_EXT2_EXTERN_H_ */
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