freebsd-dev/sys/ufs/ffs/ffs_extern.h
Poul-Henning Kamp aec0fb7b40 Back when VOP_* was introduced, we did not have new-style struct
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)
2004-12-01 23:16:38 +00:00

128 lines
5.5 KiB
C

/*-
* 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.
* 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 8.6 (Berkeley) 3/30/95
* $FreeBSD$
*/
#ifndef _UFS_FFS_EXTERN_H
#define _UFS_FFS_EXTERN_H
struct buf;
struct cg;
struct fid;
struct fs;
struct inode;
struct malloc_type;
struct mount;
struct thread;
struct sockaddr;
struct statfs;
struct ucred;
struct vnode;
struct vop_fsync_args;
struct vop_reallocblks_args;
int ffs_alloc(struct inode *,
ufs2_daddr_t, ufs2_daddr_t, int, struct ucred *, ufs2_daddr_t *);
int ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size,
struct ucred *a_cred, int a_flags, struct buf **a_bpp);
int ffs_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size,
struct ucred *a_cred, int a_flags, struct buf **a_bpp);
int ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
void ffs_blkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t);
ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *);
ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *);
int ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
void ffs_clusteracct (struct fs *, struct cg *, ufs1_daddr_t, int);
int ffs_copyonwrite(struct vnode *, struct buf *);
vfs_fhtovp_t ffs_fhtovp;
int ffs_flushfiles(struct mount *, int, struct thread *);
void ffs_fragacct(struct fs *, int, int32_t [], int);
int ffs_freefile(struct fs *, struct vnode *, ino_t, int);
int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
void ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
int ffs_mountroot(void);
int ffs_reallocblks(struct vop_reallocblks_args *);
int ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
ufs2_daddr_t, int, int, struct ucred *, struct buf **);
void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
int ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t);
void ffs_snapremove(struct vnode *vp);
int ffs_snapshot(struct mount *mp, char *snapfile);
void ffs_snapshot_mount(struct mount *mp);
void ffs_snapshot_unmount(struct mount *mp);
vfs_statfs_t ffs_statfs;
vfs_sync_t ffs_sync;
int ffs_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
vfs_unmount_t ffs_unmount;
int ffs_update(struct vnode *, int);
int ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
int ffs_vfree(struct vnode *, ino_t, int);
vfs_vget_t ffs_vget;
vfs_vptofh_t ffs_vptofh;
extern struct vop_vector ffs_vnodeops;
extern struct vop_vector ffs_fifoops;
/*
* Soft update function prototypes.
*/
void softdep_initialize(void);
void softdep_uninitialize(void);
int softdep_mount(struct vnode *, struct mount *, struct fs *,
struct ucred *);
int softdep_flushworklist(struct mount *, int *, struct thread *);
int softdep_flushfiles(struct mount *, int, struct thread *);
void softdep_update_inodeblock(struct inode *, struct buf *, int);
void softdep_load_inodeblock(struct inode *);
void softdep_freefile(struct vnode *, ino_t, int);
int softdep_request_cleanup(struct fs *, struct vnode *);
void softdep_setup_freeblocks(struct inode *, off_t, int);
void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
void softdep_setup_blkmapdep(struct buf *, struct fs *, ufs2_daddr_t);
void softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
ufs2_daddr_t, long, long, struct buf *);
void softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
ufs2_daddr_t, long, long, struct buf *);
void softdep_setup_allocindir_meta(struct buf *, struct inode *,
struct buf *, int, ufs2_daddr_t);
void softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
void softdep_fsync_mountdev(struct vnode *);
int softdep_sync_metadata(struct vop_fsync_args *);
int softdep_disk_prewrite(struct buf *bp);
/* XXX incorrectly moved to mount.h - should be indirect function */
#if 0
int softdep_fsync(struct vnode *vp);
#endif
#endif /* !_UFS_FFS_EXTERN_H */