2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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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
33 * @(#)vnode.h 8.7 (Berkeley) 2/4/94
34 * $FreeBSD: src/sys/sys/vnode.h,v 1.111.2.19 2002/12/29 18:19:53 dillon Exp $
35 * $DragonFly: src/sys/sys/vnode.h,v 1.3 2003/06/24 02:12:00 dillon Exp $
41 #include <sys/queue.h>
43 #include <sys/select.h>
47 #include <machine/lock.h>
50 * The vnode is the focus of all file activity in UNIX. There is a
51 * unique vnode allocated for each active file, each current directory,
52 * each mounted-on file, text file, and the root.
56 * Vnode types. VNON means no type.
58 enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD };
62 * These are for the benefit of external programs only (e.g., pstat)
63 * and should NEVER be inspected by the kernel.
66 VT_NON, VT_UFS, VT_NFS, VT_MFS, VT_PC, VT_LFS, VT_LOFS, VT_FDESC,
67 VT_PORTAL, VT_NULL, VT_UMAP, VT_KERNFS, VT_PROCFS, VT_AFS, VT_ISOFS,
68 VT_UNION, VT_MSDOSFS, VT_TFS, VT_VFS, VT_CODA, VT_NTFS,
69 VT_HPFS, VT_NWFS, VT_SMBFS
73 * Each underlying filesystem allocates its own private area and hangs
74 * it from v_data. If non-null, this area is freed in getnewvnode().
76 TAILQ_HEAD(buflists, buf);
78 typedef int vop_t __P((void *));
82 * Reading or writing any of these items requires holding the appropriate lock.
83 * v_freelist is locked by the global vnode_free_list simple lock.
84 * v_mntvnodes is locked by the global mntvnodes simple lock.
85 * v_flag, v_usecount, v_holdcount and v_writecount are
86 * locked by the v_interlock simple lock.
87 * v_pollinfo is locked by the lock contained inside it.
90 u_long v_flag; /* vnode flags (see below) */
91 int v_usecount; /* reference count of users */
92 int v_writecount; /* reference count of writers */
93 int v_holdcnt; /* page & buffer references */
94 u_long v_id; /* capability identifier */
95 struct mount *v_mount; /* ptr to vfs we are in */
96 vop_t **v_op; /* vnode operations vector */
97 TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
98 TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */
99 struct buflists v_cleanblkhd; /* clean blocklist head */
100 struct buflists v_dirtyblkhd; /* dirty blocklist head */
101 LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
102 long v_numoutput; /* num of writes in progress */
103 enum vtype v_type; /* vnode type */
105 struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
106 struct socket *vu_socket; /* unix ipc (VSOCK) */
108 struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */
109 SLIST_ENTRY(vnode) vu_specnext;
111 struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
113 struct nqlease *v_lease; /* Soft reference to lease */
114 daddr_t v_lastw; /* last write (write cluster) */
115 daddr_t v_cstart; /* start block of cluster */
116 daddr_t v_lasta; /* last allocation */
117 int v_clen; /* length of current cluster */
118 struct vm_object *v_object; /* Place to store VM object */
119 struct simplelock v_interlock; /* lock on usecount and flag */
120 struct lock *v_vnlock; /* used for non-locking fs's */
121 enum vtagtype v_tag; /* type of underlying data */
122 void *v_data; /* private data for fs */
123 LIST_HEAD(, namecache) v_cache_src; /* Cache entries from us */
124 TAILQ_HEAD(, namecache) v_cache_dst; /* Cache entries to us */
125 struct vnode *v_dd; /* .. vnode */
126 u_long v_ddid; /* .. capability identifier */
128 struct simplelock vpi_lock; /* lock to protect below */
129 struct selinfo vpi_selinfo; /* identity of poller(s) */
130 short vpi_events; /* what they are looking for */
131 short vpi_revents; /* what has happened */
133 struct proc *v_vxproc; /* proc owning VXLOCK */
135 const char *filename; /* Source file doing locking */
136 int line; /* Line number doing locking */
139 #define v_mountedhere v_un.vu_mountedhere
140 #define v_socket v_un.vu_socket
141 #define v_rdev v_un.vu_spec.vu_specinfo
142 #define v_specnext v_un.vu_spec.vu_specnext
143 #define v_fifoinfo v_un.vu_fifoinfo
145 #define VN_POLLEVENT(vp, events) \
147 if ((vp)->v_pollinfo.vpi_events & (events)) \
148 vn_pollevent((vp), (events)); \
154 #define VROOT 0x00001 /* root of its file system */
155 #define VTEXT 0x00002 /* vnode is a pure text prototype */
156 #define VSYSTEM 0x00004 /* vnode being used by kernel */
157 #define VISTTY 0x00008 /* vnode represents a tty */
158 #define VXLOCK 0x00100 /* vnode is locked to change underlying type */
159 #define VXWANT 0x00200 /* process is waiting for vnode */
160 #define VBWAIT 0x00400 /* waiting for output to complete */
161 /* open for business 0x00800 */
162 /* open for business 0x01000 */
163 #define VOBJBUF 0x02000 /* Allocate buffers in VM object */
164 /* open for business 0x04000 */
165 #define VAGE 0x08000 /* Insert vnode at head of free list */
166 #define VOLOCK 0x10000 /* vnode is locked waiting for an object */
167 #define VOWANT 0x20000 /* a process is waiting for VOLOCK */
168 #define VDOOMED 0x40000 /* This vnode is being recycled */
169 #define VFREE 0x80000 /* This vnode is on the freelist */
170 #define VONWORKLST 0x200000 /* On syncer work-list */
171 #define VMOUNT 0x400000 /* Mount in progress */
172 #define VOBJDIRTY 0x800000 /* object might be dirty */
175 * Vnode attributes. A field value of VNOVAL represents a field whose value
176 * is unavailable (getattr) or which is not to be changed (setattr).
179 enum vtype va_type; /* vnode type (for create) */
180 u_short va_mode; /* files access mode and type */
181 short va_nlink; /* number of references to file */
182 uid_t va_uid; /* owner user id */
183 gid_t va_gid; /* owner group id */
184 udev_t va_fsid; /* file system id */
185 long va_fileid; /* file id */
186 u_quad_t va_size; /* file size in bytes */
187 long va_blocksize; /* blocksize preferred for i/o */
188 struct timespec va_atime; /* time of last access */
189 struct timespec va_mtime; /* time of last modification */
190 struct timespec va_ctime; /* time file changed */
191 u_long va_gen; /* generation number of file */
192 u_long va_flags; /* flags defined for file */
193 udev_t va_rdev; /* device the special file represents */
194 u_quad_t va_bytes; /* bytes of disk space held by file */
195 u_quad_t va_filerev; /* file modification number */
196 u_int va_vaflags; /* operations flags, see below */
197 long va_spare; /* remain quad aligned */
201 * Flags for va_vaflags.
203 #define VA_UTIMES_NULL 0x01 /* utimes argument was NULL */
204 #define VA_EXCLUSIVE 0x02 /* exclusive create request */
207 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
208 * help with write clustering)
210 #define IO_UNIT 0x0001 /* do I/O as atomic unit */
211 #define IO_APPEND 0x0002 /* append write to end */
212 #define IO_SYNC 0x0004 /* do I/O synchronously */
213 #define IO_NODELOCKED 0x0008 /* underlying node already locked */
214 #define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
215 #define IO_VMIO 0x0020 /* data already in VMIO space */
216 #define IO_INVAL 0x0040 /* invalidate after I/O */
217 #define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
218 #define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
219 #define IO_NOWDRAIN 0x0200 /* do not block on wdrain */
220 #define IO_CORE 0x0400 /* I/O is part of core dump */
222 #define IO_SEQMAX 0x7F /* seq heuristic max value */
223 #define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
226 * Modes. Some values same as Ixxx entries from inode.h for now.
228 #define VSUID 04000 /* set user id on execution */
229 #define VSGID 02000 /* set group id on execution */
230 #define VSVTX 01000 /* save swapped text even after use */
231 #define VREAD 00400 /* read, write, execute permissions */
236 * Token indicating no attribute value yet assigned.
241 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
243 #define VLKTIMEOUT (hz / 20 + 1)
247 #ifdef MALLOC_DECLARE
248 MALLOC_DECLARE(M_VNODE);
252 * Convert between vnode types and inode formats (since POSIX.1
253 * defines mode word of stat structure in terms of inode formats).
255 extern enum vtype iftovt_tab[];
256 extern int vttoif_tab[];
257 #define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
258 #define VTTOIF(indx) (vttoif_tab[(int)(indx)])
259 #define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
262 * Flags to various vnode functions.
264 #define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
265 #define FORCECLOSE 0x0002 /* vflush: force file closure */
266 #define WRITECLOSE 0x0004 /* vflush: only close writable files */
267 #define DOCLOSE 0x0008 /* vclean: close active files */
268 #define V_SAVE 0x0001 /* vinvalbuf: sync file first */
269 #define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */
271 #define VREF(vp) vref(vp)
275 #define VATTR_NULL(vap) vattr_null(vap)
277 #define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
278 #endif /* DIAGNOSTIC */
280 #define NULLVP ((struct vnode *)NULL)
282 #define VNODEOP_SET(f) \
283 C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops, &f); \
284 C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND, vfs_rm_vnodeops, &f);
289 extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
290 extern int desiredvnodes; /* number of vnodes desired */
291 extern time_t syncdelay; /* max time to delay syncing data */
292 extern time_t filedelay; /* time to delay syncing files */
293 extern time_t dirdelay; /* time to delay syncing directories */
294 extern time_t metadelay; /* time to delay syncing metadata */
295 extern struct vm_zone *namei_zone;
296 extern int prtactive; /* nonzero to call vprint() */
297 extern struct vattr va_null; /* predefined null vattr structure */
298 extern int vfs_ioopt;
301 * Macro/function to check for client cache inconsistency w.r.t. leasing.
303 #define LEASE_READ 0x1 /* Check lease for readers */
304 #define LEASE_WRITE 0x2 /* Check lease for modifiers */
307 extern void (*lease_updatetime) __P((int deltat));
309 #define VSHOULDFREE(vp) \
310 (!((vp)->v_flag & (VFREE|VDOOMED)) && \
311 !(vp)->v_holdcnt && !(vp)->v_usecount && \
312 (!(vp)->v_object || \
313 !((vp)->v_object->ref_count || (vp)->v_object->resident_page_count)))
315 #define VMIGHTFREE(vp) \
316 (!((vp)->v_flag & (VFREE|VDOOMED|VXLOCK)) && \
317 LIST_EMPTY(&(vp)->v_cache_src) && !(vp)->v_usecount)
319 #define VSHOULDBUSY(vp) \
320 (((vp)->v_flag & VFREE) && \
321 ((vp)->v_holdcnt || (vp)->v_usecount))
323 #define VI_LOCK(vp) simple_lock(&(vp)->v_interlock)
324 #define VI_TRYLOCK(vp) simple_lock_try(&(vp)->v_interlock)
325 #define VI_UNLOCK(vp) simple_unlock(&(vp)->v_interlock)
331 * Mods for extensibility.
335 * Flags for vdesc_flags:
337 #define VDESC_MAX_VPS 16
338 /* Low order 16 flag bits are reserved for willrele flags for vp arguments. */
339 #define VDESC_VP0_WILLRELE 0x0001
340 #define VDESC_VP1_WILLRELE 0x0002
341 #define VDESC_VP2_WILLRELE 0x0004
342 #define VDESC_VP3_WILLRELE 0x0008
343 #define VDESC_NOMAP_VPP 0x0100
344 #define VDESC_VPP_WILLRELE 0x0200
347 * VDESC_NO_OFFSET is used to identify the end of the offset list
348 * and in places where no such field exists.
350 #define VDESC_NO_OFFSET -1
353 * This structure describes the vnode operation taking place.
355 struct vnodeop_desc {
356 int vdesc_offset; /* offset in vector--first for speed */
357 char *vdesc_name; /* a readable name for debugging */
358 int vdesc_flags; /* VDESC_* flags */
361 * These ops are used by bypass routines to map and locate arguments.
362 * Creds and procs are not needed in bypass routines, but sometimes
363 * they are useful to (for example) transport layers.
364 * Nameidata is useful because it has a cred in it.
366 int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */
367 int vdesc_vpp_offset; /* return vpp location */
368 int vdesc_cred_offset; /* cred location, if any */
369 int vdesc_proc_offset; /* proc location, if any */
370 int vdesc_componentname_offset; /* if any */
372 * Finally, we've got a list of private data (about each operation)
373 * for each transport layer. (Support to manage this list is not
376 caddr_t *vdesc_transports;
381 * A list of all the operation descs.
383 extern struct vnodeop_desc *vnodeop_descs[];
386 * Interlock for scanning list of vnodes attached to a mountpoint
388 extern struct simplelock mntvnode_slock;
391 * This macro is very helpful in defining those offsets in the vdesc struct.
393 * This is stolen from X11R4. I ignored all the fancy stuff for
394 * Crays, so if you decide to port this to such a serious machine,
395 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
397 #define VOPARG_OFFSET(p_type,field) \
398 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
399 #define VOPARG_OFFSETOF(s_type,field) \
400 VOPARG_OFFSET(s_type*,field)
401 #define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
402 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
406 * This structure is used to configure the new vnodeops vector.
408 struct vnodeopv_entry_desc {
409 struct vnodeop_desc *opve_op; /* which operation this is */
410 vop_t *opve_impl; /* code implementing this operation */
412 struct vnodeopv_desc {
413 /* ptr to the ptr to the vector where op should go */
414 vop_t ***opv_desc_vector_p;
415 struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
419 * A generic structure.
420 * This can be used by bypass routines to identify generic arguments.
422 struct vop_generic_args {
423 struct vnodeop_desc *a_desc;
424 /* other random data follows, presumably */
428 #ifdef DEBUG_VFS_LOCKS
430 * Macros to aid in tracing VFS locking problems. Not totally
431 * reliable since if the process sleeps between changing the lock
432 * state and checking it with the assert, some other process could
433 * change the state. They are good enough for debugging a single
434 * filesystem using a single-threaded test. I find that 'cvs co src'
435 * is a pretty good test.
439 * [dfr] Kludge until I get around to fixing all the vfs locking.
441 #define IS_LOCKING_VFS(vp) ((vp)->v_tag == VT_UFS \
442 || (vp)->v_tag == VT_MFS \
443 || (vp)->v_tag == VT_NFS \
444 || (vp)->v_tag == VT_LFS \
445 || (vp)->v_tag == VT_ISOFS \
446 || (vp)->v_tag == VT_MSDOSFS)
448 #define ASSERT_VOP_LOCKED(vp, str) \
450 struct vnode *_vp = (vp); \
452 if (_vp && IS_LOCKING_VFS(_vp) && !VOP_ISLOCKED(_vp, NULL)) \
453 panic("%s: %p is not locked but should be", str, _vp); \
456 #define ASSERT_VOP_UNLOCKED(vp, str) \
458 struct vnode *_vp = (vp); \
461 if (_vp && IS_LOCKING_VFS(_vp)) { \
462 lockstate = VOP_ISLOCKED(_vp, curproc); \
463 if (lockstate == LK_EXCLUSIVE) \
464 panic("%s: %p is locked but should not be", \
469 #define ASSERT_VOP_ELOCKED(vp, str) \
471 struct vnode *_vp = (vp); \
473 if (_vp && IS_LOCKING_VFS(_vp) && \
474 VOP_ISLOCKED(_vp, curproc) != LK_EXCLUSIVE) \
475 panic("%s: %p is not exclusive locked but should be", \
479 #define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
481 struct vnode *_vp = (vp); \
483 if (_vp && IS_LOCKING_VFS(_vp) && \
484 VOP_ISLOCKED(_vp, curproc) != LK_EXCLOTHER) \
485 panic("%s: %p is not exclusive locked by another proc", \
489 #define ASSERT_VOP_SLOCKED(vp, str) \
491 struct vnode *_vp = (vp); \
493 if (_vp && IS_LOCKING_VFS(_vp) && \
494 VOP_ISLOCKED(_vp, NULL) != LK_SHARED) \
495 panic("%s: %p is not locked shared but should be", \
501 #define ASSERT_VOP_LOCKED(vp, str)
502 #define ASSERT_VOP_UNLOCKED(vp, str)
507 * VOCALL calls an op given an ops vector. We break it out because BSD's
508 * vclean changes the ops vector and then wants to call ops with the old
511 #define VOCALL(OPSV,OFF,AP) (( *((OPSV)[(OFF)])) (AP))
514 * This call works for vnodes in the kernel.
516 #define VCALL(VP,OFF,AP) VOCALL((VP)->v_op,(OFF),(AP))
517 #define VDESC(OP) (& __CONCAT(OP,_desc))
518 #define VOFFSET(OP) (VDESC(OP)->vdesc_offset)
521 * VMIO support inline
524 extern int vmiodirenable;
527 vn_canvmio(struct vnode *vp)
529 if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
535 * Finally, include the default set of vnode operations.
537 #include "vnode_if.h"
540 * Public vnode manipulation functions.
542 struct componentname;
554 struct vop_bwrite_args;
556 extern int (*lease_check_hook) __P((struct vop_lease_args *));
558 void addalias __P((struct vnode *vp, dev_t nvp_rdev));
559 void addaliasu __P((struct vnode *vp, udev_t nvp_rdev));
560 int bdevvp __P((dev_t dev, struct vnode **vpp));
561 /* cache_* may belong in namei.h. */
562 void cache_enter __P((struct vnode *dvp, struct vnode *vp,
563 struct componentname *cnp));
564 int cache_lookup __P((struct vnode *dvp, struct vnode **vpp,
565 struct componentname *cnp));
566 void cache_purge __P((struct vnode *vp));
567 void cache_purgevfs __P((struct mount *mp));
568 int cache_leaf_test __P((struct vnode *vp));
569 void cvtstat __P((struct stat *st, struct ostat *ost));
570 void cvtnstat __P((struct stat *sb, struct nstat *nsb));
571 int getnewvnode __P((enum vtagtype tag,
572 struct mount *mp, vop_t **vops, struct vnode **vpp));
573 int lease_check __P((struct vop_lease_args *ap));
574 int spec_vnoperate __P((struct vop_generic_args *));
575 int speedup_syncer __P((void));
576 int textvp_fullpath __P((struct proc *p, char **retbuf, char **retfreebuf));
577 void vattr_null __P((struct vattr *vap));
578 int vcount __P((struct vnode *vp));
579 void vdrop __P((struct vnode *));
580 int vfinddev __P((dev_t dev, enum vtype type, struct vnode **vpp));
581 void vfs_add_vnodeops __P((const void *));
582 void vfs_rm_vnodeops __P((const void *));
583 int vflush __P((struct mount *mp, int rootrefs, int flags));
584 int vget __P((struct vnode *vp, int lockflag, struct proc *p));
585 void vgone __P((struct vnode *vp));
586 void vgonel __P((struct vnode *vp, struct proc *p));
587 void vhold __P((struct vnode *));
588 int vinvalbuf __P((struct vnode *vp, int save, struct ucred *cred,
590 struct proc *p, int slpflag, int slptimeo));
591 int vtruncbuf __P((struct vnode *vp, struct ucred *cred, struct proc *p,
592 off_t length, int blksize));
593 void vprint __P((char *label, struct vnode *vp));
594 int vrecycle __P((struct vnode *vp, struct simplelock *inter_lkp,
596 int vn_close __P((struct vnode *vp,
597 int flags, struct ucred *cred, struct proc *p));
598 int vn_isdisk __P((struct vnode *vp, int *errp));
599 int vn_lock __P((struct vnode *vp, int flags, struct proc *p));
601 int debug_vn_lock __P((struct vnode *vp, int flags, struct proc *p,
602 const char *filename, int line));
603 #define vn_lock(vp,flags,p) debug_vn_lock(vp,flags,p,__FILE__,__LINE__)
605 int vn_open __P((struct nameidata *ndp, int fmode, int cmode));
606 void vn_pollevent __P((struct vnode *vp, int events));
607 void vn_pollgone __P((struct vnode *vp));
608 int vn_pollrecord __P((struct vnode *vp, struct proc *p, int events));
609 int vn_rdwr __P((enum uio_rw rw, struct vnode *vp, caddr_t base,
610 int len, off_t offset, enum uio_seg segflg, int ioflg,
611 struct ucred *cred, int *aresid, struct proc *p));
612 int vn_rdwr_inchunks __P((enum uio_rw rw, struct vnode *vp, caddr_t base,
613 int len, off_t offset, enum uio_seg segflg, int ioflg,
614 struct ucred *cred, int *aresid, struct proc *p));
615 int vn_stat __P((struct vnode *vp, struct stat *sb, struct proc *p));
616 dev_t vn_todev __P((struct vnode *vp));
617 int vfs_cache_lookup __P((struct vop_lookup_args *ap));
618 int vfs_object_create __P((struct vnode *vp, struct proc *p,
619 struct ucred *cred));
620 void vfs_timestamp __P((struct timespec *));
621 int vn_writechk __P((struct vnode *vp));
622 int vop_stdbwrite __P((struct vop_bwrite_args *ap));
623 int vop_stdislocked __P((struct vop_islocked_args *));
624 int vop_stdlock __P((struct vop_lock_args *));
625 int vop_stdunlock __P((struct vop_unlock_args *));
626 int vop_noislocked __P((struct vop_islocked_args *));
627 int vop_nolock __P((struct vop_lock_args *));
628 int vop_nopoll __P((struct vop_poll_args *));
629 int vop_nounlock __P((struct vop_unlock_args *));
630 int vop_stdpathconf __P((struct vop_pathconf_args *));
631 int vop_stdpoll __P((struct vop_poll_args *));
632 int vop_revoke __P((struct vop_revoke_args *));
633 int vop_sharedlock __P((struct vop_lock_args *));
634 int vop_eopnotsupp __P((struct vop_generic_args *ap));
635 int vop_ebadf __P((struct vop_generic_args *ap));
636 int vop_einval __P((struct vop_generic_args *ap));
637 int vop_enotty __P((struct vop_generic_args *ap));
638 int vop_defaultop __P((struct vop_generic_args *ap));
639 int vop_null __P((struct vop_generic_args *ap));
640 int vop_panic __P((struct vop_generic_args *ap));
641 int vop_stdcreatevobject __P((struct vop_createvobject_args *ap));
642 int vop_stddestroyvobject __P((struct vop_destroyvobject_args *ap));
643 int vop_stdgetvobject __P((struct vop_getvobject_args *ap));
645 void vfree __P((struct vnode *vp));
646 void vput __P((struct vnode *vp));
647 void vrele __P((struct vnode *vp));
648 void vref __P((struct vnode *vp));
649 void vbusy __P((struct vnode *vp));
651 extern vop_t **default_vnodeop_p;
652 extern vop_t **spec_vnodeop_p;
656 #endif /* !_SYS_VNODE_H_ */