[unix-history] / sys / ufs / mfsnode.h

/*
 * Copyright (c) 1989 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.
 *
 *	from: @(#)mfsnode.h	7.3 (Berkeley) 4/16/91
 *	$Id: mfsnode.h,v 1.3 1993/11/07 17:53:42 wollman Exp $
 */

#ifndef _UFS_MFSNODE_H_
#define _UFS_MFSNODE_H_ 1

/*
 * This structure defines the control data for the memory
 * based file system.
 */

struct mfsnode {
	struct	vnode *mfs_vnode;	/* vnode associated with this mfsnode */
	caddr_t	mfs_baseoff;		/* base of file system in memory */
	long	mfs_size;		/* size of memory file system */
	pid_t	mfs_pid;		/* supporting process pid */
	struct	buf *mfs_buflist;	/* list of I/O requests */
	long	mfs_spare[4];
};

/*
 * Convert between mfsnode pointers and vnode pointers
 */
#define VTOMFS(vp)	((struct mfsnode *)(vp)->v_data)
#define MFSTOV(mfsp)	((mfsp)->mfs_vnode)

/*
 * Prototypes for MFS operations on vnodes.
 */
int	mfs_badop();
#define mfs_lookup ((int (*) __P(( \
		struct vnode *vp, \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_create ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		struct proc *p))) mfs_badop)
#define mfs_mknod ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
int	mfs_open __P((
		struct vnode *vp,
		int mode,
		struct ucred *cred,
		struct proc *p));
int	mfs_close __P((
		struct vnode *vp,
		int fflag,
		struct ucred *cred,
		struct proc *p));
#define mfs_access ((int (*) __P(( \
		struct vnode *vp, \
		int mode, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_getattr ((int (*) __P(( \
		struct vnode *vp, \
		struct vattr *vap, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_setattr ((int (*) __P(( \
		struct vnode *vp, \
		struct vattr *vap, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_read ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		int ioflag, \
		struct ucred *cred))) mfs_badop)
#define mfs_write ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		int ioflag, \
		struct ucred *cred))) mfs_badop)
int	mfs_ioctl __P((
		struct vnode *vp,
		int command,
		caddr_t data,
		int fflag,
		struct ucred *cred,
		struct proc *p));
#define mfs_select ((int (*) __P(( \
		struct vnode *vp, \
		int which, \
		int fflags, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_mmap ((int (*) __P(( \
		struct vnode *vp, \
		int fflags, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_fsync ((int (*) __P(( \
		struct vnode *vp, \
		int fflags, \
		struct ucred *cred, \
		int waitfor, \
		struct proc *p))) mfs_badop)
#define mfs_seek ((int (*) __P(( \
		struct vnode *vp, \
		off_t oldoff, \
		off_t newoff, \
		struct ucred *cred))) mfs_badop)
#define mfs_remove ((int (*) __P(( \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_link ((int (*) __P(( \
		struct vnode *vp, \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_rename ((int (*) __P(( \
		struct nameidata *fndp, \
		struct nameidata *tdnp, \
		struct proc *p))) mfs_badop)
#define mfs_mkdir ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		struct proc *p))) mfs_badop)
#define mfs_rmdir ((int (*) __P(( \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_symlink ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		char *target, \
		struct proc *p))) mfs_badop)
#define mfs_readdir ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		struct ucred *cred, \
		int *eofflagp))) mfs_badop)
#define mfs_readlink ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		struct ucred *cred))) mfs_badop)
#define mfs_abortop ((int (*) __P(( \
		struct nameidata *ndp))) mfs_badop)
int	mfs_inactive __P((
		struct vnode *vp,
		struct proc *p));
#define mfs_reclaim ((int (*) __P(( \
		struct vnode *vp))) nullop)
#define mfs_lock ((int (*) __P(( \
		struct vnode *vp))) nullop)
#define mfs_unlock ((int (*) __P(( \
		struct vnode *vp))) nullop)
int	mfs_bmap __P((
		struct vnode *vp,
		daddr_t bn,
		struct vnode **vpp,
		daddr_t *bnp));
int	mfs_strategy __P((
		struct buf *bp));
void	mfs_print __P((
		struct vnode *vp));
#define mfs_islocked ((int (*) __P(( \
		struct vnode *vp))) nullop)
#define mfs_advlock ((int (*) __P(( \
		struct vnode *vp, \
		caddr_t id, \
		int op, \
		struct flock *fl, \
		int flags))) mfs_badop)

void mfs_doio(struct buf *, caddr_t);

#endif /* _UFS_MFSNODE_H_ */
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1989 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
1eb58e01	33	* from: @(#)mfsnode.h 7.3 (Berkeley) 4/16/91
4c45483e	34	* $Id: mfsnode.h,v 1.3 1993/11/07 17:53:42 wollman Exp $
15637ed4 RG	35	*/
15637ed4 RG	36
bbc3f849 GW	37	#ifndef _UFS_MFSNODE_H_
	38	#define _UFS_MFSNODE_H_ 1
	39
15637ed4 RG	40	/*
	41	* This structure defines the control data for the memory
	42	* based file system.
	43	*/
	44
	45	struct mfsnode {
	46	struct vnode mfs_vnode; / vnode associated with this mfsnode */
	47	caddr_t mfs_baseoff; /* base of file system in memory */
	48	long mfs_size; /* size of memory file system */
	49	pid_t mfs_pid; /* supporting process pid */
	50	struct buf mfs_buflist; / list of I/O requests */
	51	long mfs_spare[4];
	52	};
	53
	54	/*
	55	* Convert between mfsnode pointers and vnode pointers
	56	*/
	57	#define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
	58	#define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
	59
	60	/*
	61	* Prototypes for MFS operations on vnodes.
	62	*/
	63	int mfs_badop();
	64	#define mfs_lookup ((int (*) __P(( \
	65	struct vnode *vp, \
	66	struct nameidata *ndp, \
	67	struct proc *p))) mfs_badop)
	68	#define mfs_create ((int (*) __P(( \
	69	struct nameidata *ndp, \
	70	struct vattr *vap, \
	71	struct proc *p))) mfs_badop)
	72	#define mfs_mknod ((int (*) __P(( \
	73	struct nameidata *ndp, \
	74	struct vattr *vap, \
	75	struct ucred *cred, \
	76	struct proc *p))) mfs_badop)
	77	int mfs_open __P((
	78	struct vnode *vp,
	79	int mode,
	80	struct ucred *cred,
	81	struct proc *p));
	82	int mfs_close __P((
	83	struct vnode *vp,
	84	int fflag,
	85	struct ucred *cred,
	86	struct proc *p));
	87	#define mfs_access ((int (*) __P(( \
	88	struct vnode *vp, \
	89	int mode, \
	90	struct ucred *cred, \
	91	struct proc *p))) mfs_badop)
	92	#define mfs_getattr ((int (*) __P(( \
	93	struct vnode *vp, \
	94	struct vattr *vap, \
	95	struct ucred *cred, \
	96	struct proc *p))) mfs_badop)
	97	#define mfs_setattr ((int (*) __P(( \
	98	struct vnode *vp, \
	99	struct vattr *vap, \
	100	struct ucred *cred, \
	101	struct proc *p))) mfs_badop)
	102	#define mfs_read ((int (*) __P(( \
	103	struct vnode *vp, \
104	struct uio *uio, \
105	int ioflag, \
106	struct ucred *cred))) mfs_badop)
107	#define mfs_write ((int (*) __P(( \
108	struct vnode *vp, \
109	struct uio *uio, \
110	int ioflag, \
111	struct ucred *cred))) mfs_badop)
112	int mfs_ioctl __P((
113	struct vnode *vp,
114	int command,
115	caddr_t data,
116	int fflag,
117	struct ucred *cred,
118	struct proc *p));
119	#define mfs_select ((int (*) __P(( \
120	struct vnode *vp, \
121	int which, \
122	int fflags, \
123	struct ucred *cred, \
124	struct proc *p))) mfs_badop)
125	#define mfs_mmap ((int (*) __P(( \
126	struct vnode *vp, \
127	int fflags, \
128	struct ucred *cred, \
129	struct proc *p))) mfs_badop)
130	#define mfs_fsync ((int (*) __P(( \
131	struct vnode *vp, \
132	int fflags, \
133	struct ucred *cred, \
134	int waitfor, \
135	struct proc *p))) mfs_badop)
136	#define mfs_seek ((int (*) __P(( \
137	struct vnode *vp, \
138	off_t oldoff, \
139	off_t newoff, \
140	struct ucred *cred))) mfs_badop)
141	#define mfs_remove ((int (*) __P(( \
142	struct nameidata *ndp, \
143	struct proc *p))) mfs_badop)
144	#define mfs_link ((int (*) __P(( \
145	struct vnode *vp, \
146	struct nameidata *ndp, \
147	struct proc *p))) mfs_badop)
148	#define mfs_rename ((int (*) __P(( \
149	struct nameidata *fndp, \
150	struct nameidata *tdnp, \
151	struct proc *p))) mfs_badop)
152	#define mfs_mkdir ((int (*) __P(( \
153	struct nameidata *ndp, \
154	struct vattr *vap, \
155	struct proc *p))) mfs_badop)
156	#define mfs_rmdir ((int (*) __P(( \
157	struct nameidata *ndp, \
158	struct proc *p))) mfs_badop)
159	#define mfs_symlink ((int (*) __P(( \
160	struct nameidata *ndp, \
161	struct vattr *vap, \
162	char *target, \
163	struct proc *p))) mfs_badop)
164	#define mfs_readdir ((int (*) __P(( \
165	struct vnode *vp, \
166	struct uio *uio, \
167	struct ucred *cred, \
168	int *eofflagp))) mfs_badop)
169	#define mfs_readlink ((int (*) __P(( \
170	struct vnode *vp, \
171	struct uio *uio, \
172	struct ucred *cred))) mfs_badop)
173	#define mfs_abortop ((int (*) __P(( \
174	struct nameidata *ndp))) mfs_badop)
175	int mfs_inactive __P((
176	struct vnode *vp,
177	struct proc *p));
178	#define mfs_reclaim ((int (*) __P(( \
179	struct vnode *vp))) nullop)
180	#define mfs_lock ((int (*) __P(( \
181	struct vnode *vp))) nullop)
182	#define mfs_unlock ((int (*) __P(( \
183	struct vnode *vp))) nullop)
184	int mfs_bmap __P((
185	struct vnode *vp,
186	daddr_t bn,
187	struct vnode **vpp,
188	daddr_t *bnp));
189	int mfs_strategy __P((
190	struct buf *bp));
4c45483e	191	void mfs_print __P((
15637ed4 RG	192	struct vnode *vp));
	193	#define mfs_islocked ((int (*) __P(( \
	194	struct vnode *vp))) nullop)
	195	#define mfs_advlock ((int (*) __P(( \
	196	struct vnode *vp, \
	197	caddr_t id, \
	198	int op, \
	199	struct flock *fl, \
	200	int flags))) mfs_badop)
4c45483e GW	201
	202	void mfs_doio(struct buf *, caddr_t);
	203
bbc3f849	204	#endif /* _UFS_MFSNODE_H_ */