oops, forgot one. Remove another curproc/cred dependancy
[dragonfly.git] / sys / sys / vnode.h
CommitLineData
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1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. 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 *
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 $
3b568787 35 * $DragonFly: src/sys/sys/vnode.h,v 1.5 2003/06/26 05:55:20 dillon Exp $
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36 */
37
38#ifndef _SYS_VNODE_H_
39#define _SYS_VNODE_H_
40
41#include <sys/queue.h>
42#include <sys/lock.h>
43#include <sys/select.h>
44#include <sys/uio.h>
45#include <sys/acl.h>
46
47#include <machine/lock.h>
48
49/*
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.
53 */
54
55/*
56 * Vnode types. VNON means no type.
57 */
58enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD };
59
60/*
61 * Vnode tag types.
62 * These are for the benefit of external programs only (e.g., pstat)
63 * and should NEVER be inspected by the kernel.
64 */
65enum vtagtype {
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
70};
71
72/*
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().
75 */
76TAILQ_HEAD(buflists, buf);
77
78typedef int vop_t __P((void *));
79struct namecache;
80
81/*
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.
88 */
89struct vnode {
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 */
104 union {
105 struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
106 struct socket *vu_socket; /* unix ipc (VSOCK) */
107 struct {
108 struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */
109 SLIST_ENTRY(vnode) vu_specnext;
110 } vu_spec;
111 struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
112 } v_un;
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 */
127 struct {
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 */
132 } v_pollinfo;
133 struct proc *v_vxproc; /* proc owning VXLOCK */
134#ifdef DEBUG_LOCKS
135 const char *filename; /* Source file doing locking */
136 int line; /* Line number doing locking */
137#endif
138};
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
144
145#define VN_POLLEVENT(vp, events) \
146 do { \
147 if ((vp)->v_pollinfo.vpi_events & (events)) \
148 vn_pollevent((vp), (events)); \
149 } while (0)
150
151/*
152 * Vnode flags.
153 */
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 */
173
174/*
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).
177 */
178struct vattr {
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 */
198};
199
200/*
201 * Flags for va_vaflags.
202 */
203#define VA_UTIMES_NULL 0x01 /* utimes argument was NULL */
204#define VA_EXCLUSIVE 0x02 /* exclusive create request */
205
206/*
207 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
208 * help with write clustering)
209 */
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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 */
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221
222#define IO_SEQMAX 0x7F /* seq heuristic max value */
223#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
224
225/*
226 * Modes. Some values same as Ixxx entries from inode.h for now.
227 */
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 */
232#define VWRITE 00200
233#define VEXEC 00100
234
235/*
236 * Token indicating no attribute value yet assigned.
237 */
238#define VNOVAL (-1)
239
240/*
241 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
242 */
243#define VLKTIMEOUT (hz / 20 + 1)
244
245#ifdef _KERNEL
246
247#ifdef MALLOC_DECLARE
248MALLOC_DECLARE(M_VNODE);
249#endif
250
251/*
252 * Convert between vnode types and inode formats (since POSIX.1
253 * defines mode word of stat structure in terms of inode formats).
254 */
255extern enum vtype iftovt_tab[];
256extern 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))
260
261/*
262 * Flags to various vnode functions.
263 */
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 */
270
271#define VREF(vp) vref(vp)
272
273
274#ifdef DIAGNOSTIC
275#define VATTR_NULL(vap) vattr_null(vap)
276#else
277#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
278#endif /* DIAGNOSTIC */
279
280#define NULLVP ((struct vnode *)NULL)
281
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);
285
286/*
287 * Global vnode data.
288 */
289extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
290extern int desiredvnodes; /* number of vnodes desired */
291extern time_t syncdelay; /* max time to delay syncing data */
292extern time_t filedelay; /* time to delay syncing files */
293extern time_t dirdelay; /* time to delay syncing directories */
294extern time_t metadelay; /* time to delay syncing metadata */
295extern struct vm_zone *namei_zone;
296extern int prtactive; /* nonzero to call vprint() */
297extern struct vattr va_null; /* predefined null vattr structure */
298extern int vfs_ioopt;
299
300/*
301 * Macro/function to check for client cache inconsistency w.r.t. leasing.
302 */
303#define LEASE_READ 0x1 /* Check lease for readers */
304#define LEASE_WRITE 0x2 /* Check lease for modifiers */
305
306
307extern void (*lease_updatetime) __P((int deltat));
308
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)))
314
315#define VMIGHTFREE(vp) \
316 (!((vp)->v_flag & (VFREE|VDOOMED|VXLOCK)) && \
317 LIST_EMPTY(&(vp)->v_cache_src) && !(vp)->v_usecount)
318
319#define VSHOULDBUSY(vp) \
320 (((vp)->v_flag & VFREE) && \
321 ((vp)->v_holdcnt || (vp)->v_usecount))
322
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)
326
327#endif /* _KERNEL */
328
329
330/*
331 * Mods for extensibility.
332 */
333
334/*
335 * Flags for vdesc_flags:
336 */
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
345
346/*
347 * VDESC_NO_OFFSET is used to identify the end of the offset list
348 * and in places where no such field exists.
349 */
350#define VDESC_NO_OFFSET -1
351
352/*
353 * This structure describes the vnode operation taking place.
354 */
355struct 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 */
359
360 /*
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.
365 */
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 */
371 /*
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
374 * yet part of BSD.)
375 */
376 caddr_t *vdesc_transports;
377};
378
379#ifdef _KERNEL
380/*
381 * A list of all the operation descs.
382 */
383extern struct vnodeop_desc *vnodeop_descs[];
384
385/*
386 * Interlock for scanning list of vnodes attached to a mountpoint
387 */
388extern struct simplelock mntvnode_slock;
389
390/*
391 * This macro is very helpful in defining those offsets in the vdesc struct.
392 *
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}.
396 */
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)))
403
404
405/*
406 * This structure is used to configure the new vnodeops vector.
407 */
408struct vnodeopv_entry_desc {
409 struct vnodeop_desc *opve_op; /* which operation this is */
410 vop_t *opve_impl; /* code implementing this operation */
411};
412struct 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 */
416};
417
418/*
419 * A generic structure.
420 * This can be used by bypass routines to identify generic arguments.
421 */
422struct vop_generic_args {
423 struct vnodeop_desc *a_desc;
424 /* other random data follows, presumably */
425};
426
427
428#ifdef DEBUG_VFS_LOCKS
429/*
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.
436 */
437
438/*
439 * [dfr] Kludge until I get around to fixing all the vfs locking.
440 */
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)
447
448#define ASSERT_VOP_LOCKED(vp, str) \
449do { \
450 struct vnode *_vp = (vp); \
451 \
452 if (_vp && IS_LOCKING_VFS(_vp) && !VOP_ISLOCKED(_vp, NULL)) \
453 panic("%s: %p is not locked but should be", str, _vp); \
454} while (0)
455
456#define ASSERT_VOP_UNLOCKED(vp, str) \
457do { \
458 struct vnode *_vp = (vp); \
459 int lockstate; \
460 \
461 if (_vp && IS_LOCKING_VFS(_vp)) { \
dadab5e9 462 lockstate = VOP_ISLOCKED(_vp, curthread); \
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463 if (lockstate == LK_EXCLUSIVE) \
464 panic("%s: %p is locked but should not be", \
465 str, _vp); \
466 } \
467} while (0)
468
469#define ASSERT_VOP_ELOCKED(vp, str) \
470do { \
471 struct vnode *_vp = (vp); \
472 \
473 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 474 VOP_ISLOCKED(_vp, curthread) != LK_EXCLUSIVE) \
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475 panic("%s: %p is not exclusive locked but should be", \
476 str, _vp); \
477} while (0)
478
479#define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
480do { \
481 struct vnode *_vp = (vp); \
482 \
483 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 484 VOP_ISLOCKED(_vp, curthread) != LK_EXCLOTHER) \
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485 panic("%s: %p is not exclusive locked by another proc", \
486 str, _vp); \
487} while (0)
488
489#define ASSERT_VOP_SLOCKED(vp, str) \
490do { \
491 struct vnode *_vp = (vp); \
492 \
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", \
496 str, _vp); \
497} while (0)
498
499#else
500
501#define ASSERT_VOP_LOCKED(vp, str)
502#define ASSERT_VOP_UNLOCKED(vp, str)
503
504#endif
505
506/*
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
509 * vector.
510 */
511#define VOCALL(OPSV,OFF,AP) (( *((OPSV)[(OFF)])) (AP))
512
513/*
514 * This call works for vnodes in the kernel.
515 */
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)
519
520/*
521 * VMIO support inline
522 */
523
524extern int vmiodirenable;
525
526static __inline int
527vn_canvmio(struct vnode *vp)
528{
529 if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
530 return(TRUE);
531 return(FALSE);
532}
533
534/*
535 * Finally, include the default set of vnode operations.
536 */
537#include "vnode_if.h"
538
539/*
540 * Public vnode manipulation functions.
541 */
542struct componentname;
543struct file;
544struct mount;
545struct nameidata;
546struct ostat;
547struct proc;
dadab5e9 548struct thread;
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549struct stat;
550struct nstat;
551struct ucred;
552struct uio;
553struct vattr;
554struct vnode;
555struct vop_bwrite_args;
556
557extern int (*lease_check_hook) __P((struct vop_lease_args *));
558
559void addalias __P((struct vnode *vp, dev_t nvp_rdev));
560void addaliasu __P((struct vnode *vp, udev_t nvp_rdev));
561int bdevvp __P((dev_t dev, struct vnode **vpp));
562/* cache_* may belong in namei.h. */
563void cache_enter __P((struct vnode *dvp, struct vnode *vp,
564 struct componentname *cnp));
565int cache_lookup __P((struct vnode *dvp, struct vnode **vpp,
566 struct componentname *cnp));
567void cache_purge __P((struct vnode *vp));
568void cache_purgevfs __P((struct mount *mp));
569int cache_leaf_test __P((struct vnode *vp));
570void cvtstat __P((struct stat *st, struct ostat *ost));
571void cvtnstat __P((struct stat *sb, struct nstat *nsb));
572int getnewvnode __P((enum vtagtype tag,
573 struct mount *mp, vop_t **vops, struct vnode **vpp));
574int lease_check __P((struct vop_lease_args *ap));
575int spec_vnoperate __P((struct vop_generic_args *));
576int speedup_syncer __P((void));
577int textvp_fullpath __P((struct proc *p, char **retbuf, char **retfreebuf));
578void vattr_null __P((struct vattr *vap));
579int vcount __P((struct vnode *vp));
580void vdrop __P((struct vnode *));
581int vfinddev __P((dev_t dev, enum vtype type, struct vnode **vpp));
582void vfs_add_vnodeops __P((const void *));
583void vfs_rm_vnodeops __P((const void *));
584int vflush __P((struct mount *mp, int rootrefs, int flags));
dadab5e9 585int vget __P((struct vnode *vp, int lockflag, struct thread *td));
984263bc 586void vgone __P((struct vnode *vp));
dadab5e9 587void vgonel __P((struct vnode *vp, struct thread *td));
984263bc 588void vhold __P((struct vnode *));
3b568787 589int vinvalbuf __P((struct vnode *vp, int save,
dadab5e9 590 struct thread *td, int slpflag, int slptimeo));
3b568787 591int vtruncbuf __P((struct vnode *vp, struct thread *td,
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592 off_t length, int blksize));
593void vprint __P((char *label, struct vnode *vp));
594int vrecycle __P((struct vnode *vp, struct simplelock *inter_lkp,
dadab5e9 595 struct thread *td));
3b568787 596int vn_close __P((struct vnode *vp, int flags, struct thread *td));
984263bc 597int vn_isdisk __P((struct vnode *vp, int *errp));
dadab5e9 598int vn_lock __P((struct vnode *vp, int flags, struct thread *td));
984263bc 599#ifdef DEBUG_LOCKS
dadab5e9 600int debug_vn_lock __P((struct vnode *vp, int flags, struct thread *td,
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601 const char *filename, int line));
602#define vn_lock(vp,flags,p) debug_vn_lock(vp,flags,p,__FILE__,__LINE__)
603#endif
604int vn_open __P((struct nameidata *ndp, int fmode, int cmode));
605void vn_pollevent __P((struct vnode *vp, int events));
606void vn_pollgone __P((struct vnode *vp));
dadab5e9 607int vn_pollrecord __P((struct vnode *vp, struct thread *td, int events));
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608int vn_rdwr __P((enum uio_rw rw, struct vnode *vp, caddr_t base,
609 int len, off_t offset, enum uio_seg segflg, int ioflg,
dadab5e9 610 struct ucred *cred, int *aresid, struct thread *td));
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611int vn_rdwr_inchunks __P((enum uio_rw rw, struct vnode *vp, caddr_t base,
612 int len, off_t offset, enum uio_seg segflg, int ioflg,
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613 struct ucred *cred, int *aresid, struct thread *td));
614int vn_stat __P((struct vnode *vp, struct stat *sb, struct thread *td));
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615dev_t vn_todev __P((struct vnode *vp));
616int vfs_cache_lookup __P((struct vop_lookup_args *ap));
3b568787 617int vfs_object_create __P((struct vnode *vp, struct thread *td));
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618void vfs_timestamp __P((struct timespec *));
619int vn_writechk __P((struct vnode *vp));
620int vop_stdbwrite __P((struct vop_bwrite_args *ap));
621int vop_stdislocked __P((struct vop_islocked_args *));
622int vop_stdlock __P((struct vop_lock_args *));
623int vop_stdunlock __P((struct vop_unlock_args *));
624int vop_noislocked __P((struct vop_islocked_args *));
625int vop_nolock __P((struct vop_lock_args *));
626int vop_nopoll __P((struct vop_poll_args *));
627int vop_nounlock __P((struct vop_unlock_args *));
628int vop_stdpathconf __P((struct vop_pathconf_args *));
629int vop_stdpoll __P((struct vop_poll_args *));
630int vop_revoke __P((struct vop_revoke_args *));
631int vop_sharedlock __P((struct vop_lock_args *));
632int vop_eopnotsupp __P((struct vop_generic_args *ap));
633int vop_ebadf __P((struct vop_generic_args *ap));
634int vop_einval __P((struct vop_generic_args *ap));
635int vop_enotty __P((struct vop_generic_args *ap));
636int vop_defaultop __P((struct vop_generic_args *ap));
637int vop_null __P((struct vop_generic_args *ap));
638int vop_panic __P((struct vop_generic_args *ap));
639int vop_stdcreatevobject __P((struct vop_createvobject_args *ap));
640int vop_stddestroyvobject __P((struct vop_destroyvobject_args *ap));
641int vop_stdgetvobject __P((struct vop_getvobject_args *ap));
642
643void vfree __P((struct vnode *vp));
644void vput __P((struct vnode *vp));
645void vrele __P((struct vnode *vp));
646void vref __P((struct vnode *vp));
647void vbusy __P((struct vnode *vp));
648
649extern vop_t **default_vnodeop_p;
650extern vop_t **spec_vnodeop_p;
651
652#endif /* _KERNEL */
653
654#endif /* !_SYS_VNODE_H_ */