Attempt to make the boot code operate in a more deterministic fashion.
[dragonfly.git] / sys / sys / vnode.h
CommitLineData
984263bc
MD
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 $
48b38f01 35 * $DragonFly: src/sys/sys/vnode.h,v 1.22 2004/09/04 23:12:53 dillon Exp $
984263bc
MD
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>
7ea21ed1 46#include <sys/namecache.h>
77a8676e
HP
47#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
48#include <sys/thread.h>
49#endif
0961aa92
MD
50#include <sys/vfsops.h>
51#include <sys/vfscache.h>
77a8676e 52
984263bc
MD
53#include <machine/lock.h>
54
55/*
56 * The vnode is the focus of all file activity in UNIX. There is a
57 * unique vnode allocated for each active file, each current directory,
58 * each mounted-on file, text file, and the root.
59 */
60
984263bc
MD
61/*
62 * Each underlying filesystem allocates its own private area and hangs
63 * it from v_data. If non-null, this area is freed in getnewvnode().
64 */
65TAILQ_HEAD(buflists, buf);
66
0961aa92 67
984263bc
MD
68/*
69 * Reading or writing any of these items requires holding the appropriate lock.
8a8d5d85
MD
70 * v_freelist is locked by the global vnode_free_list token.
71 * v_mntvnodes is locked by the global mntvnodes token.
984263bc 72 * v_flag, v_usecount, v_holdcount and v_writecount are
8a8d5d85 73 * locked by the v_interlock token.
984263bc 74 * v_pollinfo is locked by the lock contained inside it.
e4c9c0c8 75 *
3446c007
MD
76 * NOTE: XXX v_opencount currently only used by specfs. It should be used
77 * universally.
78 *
79 * NOTE: The v_vnlock pointer is now an embedded lock structure, v_lock.
80 * v_lock is currently locked exclusively for writes but when a
81 * range lock is added later on it will be locked shared for writes
82 * and a range will be exclusively reserved in the rangelock space.
83 * v_lock is currently locked exclusively for directory modifying
84 * operations but when we start locking namespaces it will no longer
85 * be used for that function, only for the actual I/O on the directory.
984263bc
MD
86 */
87struct vnode {
88 u_long v_flag; /* vnode flags (see below) */
89 int v_usecount; /* reference count of users */
90 int v_writecount; /* reference count of writers */
91 int v_holdcnt; /* page & buffer references */
e4c9c0c8 92 int v_opencount; /* number of explicit opens */
984263bc
MD
93 u_long v_id; /* capability identifier */
94 struct mount *v_mount; /* ptr to vfs we are in */
0961aa92 95 struct vop_ops *v_ops; /* mount, vops, other things */
984263bc
MD
96 TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
97 TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */
98 struct buflists v_cleanblkhd; /* clean blocklist head */
99 struct buflists v_dirtyblkhd; /* dirty blocklist head */
100 LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
101 long v_numoutput; /* num of writes in progress */
102 enum vtype v_type; /* vnode type */
103 union {
104 struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
105 struct socket *vu_socket; /* unix ipc (VSOCK) */
106 struct {
e4c9c0c8 107 udev_t vu_udev; /* device number for attach */
984263bc
MD
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 */
41a01a4d 119 lwkt_token_t v_interlock; /* lock on usecount and flag */
3446c007 120 struct lock v_lock; /* file/dir ops lock */
984263bc 121 enum vtagtype v_tag; /* type of underlying data */
597aea93 122 void *v_data; /* private data for fs */
7ea21ed1 123 struct namecache_list v_namecache; /* associated nc entries */
984263bc 124 struct {
8a8d5d85 125 struct lwkt_token vpi_token; /* lock to protect below */
984263bc
MD
126 struct selinfo vpi_selinfo; /* identity of poller(s) */
127 short vpi_events; /* what they are looking for */
128 short vpi_revents; /* what has happened */
129 } v_pollinfo;
41a01a4d 130 struct thread *v_vxthread; /* thread owning VXLOCK */
29802dbb 131 struct vmresident *v_resident; /* optional vmresident */
984263bc
MD
132#ifdef DEBUG_LOCKS
133 const char *filename; /* Source file doing locking */
134 int line; /* Line number doing locking */
135#endif
136};
137#define v_mountedhere v_un.vu_mountedhere
138#define v_socket v_un.vu_socket
e4c9c0c8 139#define v_udev v_un.vu_spec.vu_udev
984263bc
MD
140#define v_rdev v_un.vu_spec.vu_specinfo
141#define v_specnext v_un.vu_spec.vu_specnext
142#define v_fifoinfo v_un.vu_fifoinfo
143
144#define VN_POLLEVENT(vp, events) \
145 do { \
146 if ((vp)->v_pollinfo.vpi_events & (events)) \
147 vn_pollevent((vp), (events)); \
148 } while (0)
149
150/*
151 * Vnode flags.
152 */
153#define VROOT 0x00001 /* root of its file system */
154#define VTEXT 0x00002 /* vnode is a pure text prototype */
155#define VSYSTEM 0x00004 /* vnode being used by kernel */
156#define VISTTY 0x00008 /* vnode represents a tty */
157#define VXLOCK 0x00100 /* vnode is locked to change underlying type */
158#define VXWANT 0x00200 /* process is waiting for vnode */
159#define VBWAIT 0x00400 /* waiting for output to complete */
160/* open for business 0x00800 */
161/* open for business 0x01000 */
162#define VOBJBUF 0x02000 /* Allocate buffers in VM object */
163/* open for business 0x04000 */
164#define VAGE 0x08000 /* Insert vnode at head of free list */
165#define VOLOCK 0x10000 /* vnode is locked waiting for an object */
166#define VOWANT 0x20000 /* a process is waiting for VOLOCK */
167#define VDOOMED 0x40000 /* This vnode is being recycled */
168#define VFREE 0x80000 /* This vnode is on the freelist */
41a01a4d 169#define VINFREE 0x100000 /* This vnode is in the midst of being freed */
984263bc
MD
170#define VONWORKLST 0x200000 /* On syncer work-list */
171#define VMOUNT 0x400000 /* Mount in progress */
597aea93
DR
172#define VOBJDIRTY 0x800000 /* object might be dirty */
173#define VPLACEMARKER 0x1000000 /* dummy vnode placemarker */
984263bc 174
984263bc
MD
175/*
176 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
177 * help with write clustering)
178 */
908b5ff6
MD
179#define IO_UNIT 0x0001 /* do I/O as atomic unit */
180#define IO_APPEND 0x0002 /* append write to end */
181#define IO_SYNC 0x0004 /* do I/O synchronously */
182#define IO_NODELOCKED 0x0008 /* underlying node already locked */
183#define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
184#define IO_VMIO 0x0020 /* data already in VMIO space */
185#define IO_INVAL 0x0040 /* invalidate after I/O */
186#define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
597aea93
DR
187#define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
188#define IO_NOWDRAIN 0x0200 /* do not block on wdrain */
189#define IO_CORE 0x0400 /* I/O is part of core dump */
984263bc 190
597aea93
DR
191#define IO_SEQMAX 0x7F /* seq heuristic max value */
192#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
984263bc
MD
193
194/*
195 * Modes. Some values same as Ixxx entries from inode.h for now.
196 */
197#define VSUID 04000 /* set user id on execution */
198#define VSGID 02000 /* set group id on execution */
199#define VSVTX 01000 /* save swapped text even after use */
200#define VREAD 00400 /* read, write, execute permissions */
201#define VWRITE 00200
202#define VEXEC 00100
203
204/*
205 * Token indicating no attribute value yet assigned.
206 */
207#define VNOVAL (-1)
208
209/*
210 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
211 */
597aea93 212#define VLKTIMEOUT (hz / 20 + 1)
984263bc
MD
213
214#ifdef _KERNEL
215
216#ifdef MALLOC_DECLARE
217MALLOC_DECLARE(M_VNODE);
218#endif
219
220/*
221 * Convert between vnode types and inode formats (since POSIX.1
222 * defines mode word of stat structure in terms of inode formats).
223 */
597aea93
DR
224extern enum vtype iftovt_tab[];
225extern int vttoif_tab[];
226#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
227#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
228#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
984263bc
MD
229
230/*
231 * Flags to various vnode functions.
232 */
233#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
234#define FORCECLOSE 0x0002 /* vflush: force file closure */
235#define WRITECLOSE 0x0004 /* vflush: only close writable files */
236#define DOCLOSE 0x0008 /* vclean: close active files */
237#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
238#define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */
239
984263bc
MD
240#ifdef DIAGNOSTIC
241#define VATTR_NULL(vap) vattr_null(vap)
242#else
243#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
244#endif /* DIAGNOSTIC */
245
246#define NULLVP ((struct vnode *)NULL)
247
248#define VNODEOP_SET(f) \
0961aa92
MD
249 C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops_sysinit, &f); \
250 C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND,vfs_rm_vnodeops_sysinit, &f);
984263bc
MD
251
252/*
253 * Global vnode data.
254 */
255extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
256extern int desiredvnodes; /* number of vnodes desired */
257extern time_t syncdelay; /* max time to delay syncing data */
258extern time_t filedelay; /* time to delay syncing files */
259extern time_t dirdelay; /* time to delay syncing directories */
260extern time_t metadelay; /* time to delay syncing metadata */
261extern struct vm_zone *namei_zone;
262extern int prtactive; /* nonzero to call vprint() */
263extern struct vattr va_null; /* predefined null vattr structure */
264extern int vfs_ioopt;
265
266/*
267 * Macro/function to check for client cache inconsistency w.r.t. leasing.
268 */
269#define LEASE_READ 0x1 /* Check lease for readers */
270#define LEASE_WRITE 0x2 /* Check lease for modifiers */
271
272
b153f746 273extern void (*lease_updatetime) (int deltat);
984263bc 274
41a01a4d
MD
275#define VI_LOCK(vlock, vp) lwkt_gettoken(vlock, (vp)->v_interlock)
276#define VI_UNLOCK(vlock, vp) lwkt_reltoken(vlock)
984263bc
MD
277
278#endif /* _KERNEL */
279
984263bc
MD
280/*
281 * Mods for extensibility.
282 */
283
284/*
285 * Flags for vdesc_flags:
286 */
3446c007
MD
287#define VDESC_MAX_VPS 8
288/* Low order 8 flag bits are reserved for willrele flags for vp arguments. */
289#define VDESC_VP0_WILLRELE 0x00000001
290#define VDESC_VP1_WILLRELE 0x00000002
291#define VDESC_VP2_WILLRELE 0x00000004
292#define VDESC_VP3_WILLRELE 0x00000008
293#define VDESC_VP4_WILLRELE 0x00000010
294#define VDESC_VP5_WILLRELE 0x00000020
295#define VDESC_VP6_WILLRELE 0x00000040
296#define VDESC_VP7_WILLRELE 0x00000080
297#define VDESC_NOMAP_VPP 0x00000100
298#define VDESC_VPP_WILLRELE 0x00000200
299#define VDESC_VP0_WILLUNLOCK 0x00010000
300#define VDESC_VP1_WILLUNLOCK 0x00020000
301#define VDESC_VP2_WILLUNLOCK 0x00040000
302#define VDESC_VP3_WILLUNLOCK 0x00080000
303#define VDESC_VP4_WILLUNLOCK 0x00100000
304#define VDESC_VP5_WILLUNLOCK 0x00200000
305#define VDESC_VP6_WILLUNLOCK 0x00400000
306#define VDESC_VP7_WILLUNLOCK 0x00800000
984263bc
MD
307
308/*
309 * VDESC_NO_OFFSET is used to identify the end of the offset list
310 * and in places where no such field exists.
311 */
312#define VDESC_NO_OFFSET -1
313
314/*
315 * This structure describes the vnode operation taking place.
316 */
317struct vnodeop_desc {
318 int vdesc_offset; /* offset in vector--first for speed */
319 char *vdesc_name; /* a readable name for debugging */
320 int vdesc_flags; /* VDESC_* flags */
321
322 /*
323 * These ops are used by bypass routines to map and locate arguments.
324 * Creds and procs are not needed in bypass routines, but sometimes
325 * they are useful to (for example) transport layers.
326 * Nameidata is useful because it has a cred in it.
327 */
328 int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */
329 int vdesc_vpp_offset; /* return vpp location */
330 int vdesc_cred_offset; /* cred location, if any */
331 int vdesc_proc_offset; /* proc location, if any */
332 int vdesc_componentname_offset; /* if any */
984263bc
MD
333};
334
335#ifdef _KERNEL
336/*
337 * A list of all the operation descs.
338 */
339extern struct vnodeop_desc *vnodeop_descs[];
340
341/*
342 * Interlock for scanning list of vnodes attached to a mountpoint
343 */
8a8d5d85 344extern struct lwkt_token mntvnode_token;
984263bc
MD
345
346/*
347 * This macro is very helpful in defining those offsets in the vdesc struct.
348 *
349 * This is stolen from X11R4. I ignored all the fancy stuff for
350 * Crays, so if you decide to port this to such a serious machine,
351 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
352 */
597aea93 353#define VOPARG_OFFSET(p_type,field) \
984263bc 354 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
597aea93 355#define VOPARG_OFFSETOF(s_type,field) \
984263bc 356 VOPARG_OFFSET(s_type*,field)
597aea93 357#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
984263bc
MD
358 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
359
360
361/*
2d3e977e
MD
362 * This structure is used to configure the new vnodeops vector. The entry
363 * descriptor describes a patricular VOP function while the operations
364 * vector descriptor recursively describes arrays of entry descriptors.
984263bc
MD
365 */
366struct vnodeopv_entry_desc {
2d3e977e
MD
367 struct vnodeop_desc *opve_op;
368 int (*opve_func)(struct vop_generic_args *ap);
984263bc 369};
2d3e977e 370
984263bc 371struct vnodeopv_desc {
2d3e977e 372 struct vop_ops **opv_desc_vector; /* vect to allocate/fill*/
984263bc
MD
373 struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
374};
375
2d3e977e
MD
376struct vnodeopv_node {
377 TAILQ_ENTRY(vnodeopv_node) entry;
0961aa92
MD
378 struct vop_ops *ops; /* allocated vector */
379 struct vnodeopv_entry_desc *descs; /* null terminated list */
984263bc
MD
380};
381
984263bc
MD
382#ifdef DEBUG_VFS_LOCKS
383/*
384 * Macros to aid in tracing VFS locking problems. Not totally
385 * reliable since if the process sleeps between changing the lock
386 * state and checking it with the assert, some other process could
387 * change the state. They are good enough for debugging a single
388 * filesystem using a single-threaded test. I find that 'cvs co src'
389 * is a pretty good test.
390 */
391
392/*
393 * [dfr] Kludge until I get around to fixing all the vfs locking.
394 */
395#define IS_LOCKING_VFS(vp) ((vp)->v_tag == VT_UFS \
396 || (vp)->v_tag == VT_MFS \
397 || (vp)->v_tag == VT_NFS \
398 || (vp)->v_tag == VT_LFS \
399 || (vp)->v_tag == VT_ISOFS \
400 || (vp)->v_tag == VT_MSDOSFS)
401
597aea93
DR
402#define ASSERT_VOP_LOCKED(vp, str) assert_vop_locked(vp, str)
403#define ASSERT_VOP_UNLOCKED(vp, str) assert_vop_unlocked(vp, str);
984263bc
MD
404
405#define ASSERT_VOP_ELOCKED(vp, str) \
406do { \
407 struct vnode *_vp = (vp); \
408 \
409 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 410 VOP_ISLOCKED(_vp, curthread) != LK_EXCLUSIVE) \
984263bc
MD
411 panic("%s: %p is not exclusive locked but should be", \
412 str, _vp); \
413} while (0)
414
415#define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
416do { \
417 struct vnode *_vp = (vp); \
418 \
419 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 420 VOP_ISLOCKED(_vp, curthread) != LK_EXCLOTHER) \
984263bc
MD
421 panic("%s: %p is not exclusive locked by another proc", \
422 str, _vp); \
423} while (0)
424
425#define ASSERT_VOP_SLOCKED(vp, str) \
426do { \
427 struct vnode *_vp = (vp); \
428 \
429 if (_vp && IS_LOCKING_VFS(_vp) && \
430 VOP_ISLOCKED(_vp, NULL) != LK_SHARED) \
431 panic("%s: %p is not locked shared but should be", \
432 str, _vp); \
433} while (0)
434
4f322a84
EN
435void assert_vop_locked(struct vnode *vp, const char *str);
436void assert_vop_unlocked(struct vnode *vp, const char *str);
437
984263bc
MD
438#else
439
597aea93
DR
440#define ASSERT_VOP_LOCKED(vp, str)
441#define ASSERT_VOP_UNLOCKED(vp, str)
984263bc 442
4f322a84 443#endif /* DEBUG_VFS_LOCKS */
984263bc
MD
444
445/*
446 * VOCALL calls an op given an ops vector. We break it out because BSD's
447 * vclean changes the ops vector and then wants to call ops with the old
448 * vector.
449 */
2d3e977e
MD
450
451typedef int (*vocall_func_t)(struct vop_generic_args *);
452
984263bc 453/*
0961aa92
MD
454 * This call executes the vops vector for the offset stored in the ap's
455 * descriptor of the passed vops rather then the one related to the
456 * ap's vop_ops structure. It is used to chain VOPS calls on behalf of
457 * filesystems from a VFS's context ONLY (that is, from a VFS's own vops
458 * vector function).
984263bc 459 */
0961aa92
MD
460#define VOCALL(vops, ap) \
461 (*(vocall_func_t *)((char *)(vops)+((ap)->a_desc->vdesc_offset)))(ap)
462
597aea93
DR
463#define VDESC(OP) (& __CONCAT(OP,_desc))
464#define VOFFSET(OP) (VDESC(OP)->vdesc_offset)
984263bc
MD
465
466/*
467 * VMIO support inline
468 */
469
470extern int vmiodirenable;
471
472static __inline int
473vn_canvmio(struct vnode *vp)
474{
475 if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
476 return(TRUE);
477 return(FALSE);
478}
479
984263bc
MD
480/*
481 * Public vnode manipulation functions.
482 */
984263bc
MD
483struct file;
484struct mount;
485struct nameidata;
486struct ostat;
487struct proc;
dadab5e9 488struct thread;
984263bc
MD
489struct stat;
490struct nstat;
491struct ucred;
492struct uio;
493struct vattr;
494struct vnode;
495struct vop_bwrite_args;
496
b153f746 497extern int (*lease_check_hook) (struct vop_lease_args *);
984263bc 498
e4c9c0c8
MD
499void addaliasu (struct vnode *vp, udev_t nvp_udev);
500int v_associate_rdev(struct vnode *vp, dev_t dev);
501void v_release_rdev(struct vnode *vp);
b153f746 502int bdevvp (dev_t dev, struct vnode **vpp);
b153f746
RG
503void cvtstat (struct stat *st, struct ostat *ost);
504void cvtnstat (struct stat *sb, struct nstat *nsb);
3446c007
MD
505int getnewvnode (enum vtagtype tag, struct mount *mp, struct vop_ops *ops,
506 struct vnode **vpp, int timo, int lkflags);
b153f746
RG
507int lease_check (struct vop_lease_args *ap);
508int spec_vnoperate (struct vop_generic_args *);
509int speedup_syncer (void);
597aea93
DR
510void vattr_null (struct vattr *vap);
511int vcount (struct vnode *vp);
b153f746
RG
512void vdrop (struct vnode *);
513int vfinddev (dev_t dev, enum vtype type, struct vnode **vpp);
0961aa92
MD
514void vfs_add_vnodeops_sysinit (const void *);
515void vfs_rm_vnodeops_sysinit (const void *);
516void vfs_add_vnodeops(struct vop_ops **, struct vnodeopv_entry_desc *);
517void vfs_rm_vnodeops(struct vop_ops **);
b153f746 518int vflush (struct mount *mp, int rootrefs, int flags);
41a01a4d
MD
519int vmntvnodescan(struct mount *mp,
520 int (*fastfunc)(struct mount *mp, struct vnode *vp, void *data),
597aea93
DR
521 int (*slowfunc)(struct mount *mp, struct vnode *vp, lwkt_tokref_t vlock,
522 void *data), void *data);
41a01a4d 523
597aea93
DR
524int vget (struct vnode *vp, lwkt_tokref_t vlock, int lockflag, struct thread *td);
525void vgone (struct vnode *vp);
41a01a4d 526void vgonel (struct vnode *vp, lwkt_tokref_t vlock, struct thread *td);
b153f746
RG
527void vhold (struct vnode *);
528int vinvalbuf (struct vnode *vp, int save,
529 struct thread *td, int slpflag, int slptimeo);
530int vtruncbuf (struct vnode *vp, struct thread *td,
531 off_t length, int blksize);
532void vprint (char *label, struct vnode *vp);
41a01a4d 533int vrecycle (struct vnode *vp, struct lwkt_tokref *inter_lkp,
b153f746 534 struct thread *td);
597aea93 535int vn_close (struct vnode *vp, int flags, struct thread *td);
b153f746 536int vn_isdisk (struct vnode *vp, int *errp);
41a01a4d 537int vn_lock (struct vnode *vp, lwkt_tokref_t vlock, int flags, struct thread *td);
984263bc 538#ifdef DEBUG_LOCKS
41a01a4d 539int debug_vn_lock (struct vnode *vp, lwkt_tokref_t vlock, int flags, struct thread *td,
b153f746 540 const char *filename, int line);
41a01a4d 541#define vn_lock(vp,vlock,flags,p) debug_vn_lock(vp,vlock,flags,p,__FILE__,__LINE__)
984263bc 542#endif
b310dfc4 543
b310dfc4 544int vn_fullpath (struct proc *p, struct vnode *vn, char **retbuf, char **freebuf);
597aea93 545int vn_open (struct nameidata *ndp, int fmode, int cmode);
b153f746
RG
546void vn_pollevent (struct vnode *vp, int events);
547void vn_pollgone (struct vnode *vp);
548int vn_pollrecord (struct vnode *vp, struct thread *td, int events);
549int vn_rdwr (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 550 int len, off_t offset, enum uio_seg segflg, int ioflg,
b153f746
RG
551 struct ucred *cred, int *aresid, struct thread *td);
552int vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 553 int len, off_t offset, enum uio_seg segflg, int ioflg,
b153f746
RG
554 struct ucred *cred, int *aresid, struct thread *td);
555int vn_stat (struct vnode *vp, struct stat *sb, struct thread *td);
556dev_t vn_todev (struct vnode *vp);
b153f746
RG
557int vfs_object_create (struct vnode *vp, struct thread *td);
558void vfs_timestamp (struct timespec *);
597aea93 559int vn_writechk (struct vnode *vp);
b153f746 560int vop_stdbwrite (struct vop_bwrite_args *ap);
2d3e977e
MD
561int vop_stdislocked (struct vop_islocked_args *ap);
562int vop_stdlock (struct vop_lock_args *ap);
3446c007 563int vop_stdrlock (struct vop_lock_args *ap);
2d3e977e 564int vop_stdunlock (struct vop_unlock_args *ap);
2d3e977e 565int vop_nopoll (struct vop_poll_args *ap);
2d3e977e
MD
566int vop_stdpathconf (struct vop_pathconf_args *ap);
567int vop_stdpoll (struct vop_poll_args *ap);
568int vop_stdrevoke (struct vop_revoke_args *ap);
b153f746
RG
569int vop_eopnotsupp (struct vop_generic_args *ap);
570int vop_ebadf (struct vop_generic_args *ap);
571int vop_einval (struct vop_generic_args *ap);
572int vop_enotty (struct vop_generic_args *ap);
573int vop_defaultop (struct vop_generic_args *ap);
574int vop_null (struct vop_generic_args *ap);
575int vop_panic (struct vop_generic_args *ap);
576int vop_stdcreatevobject (struct vop_createvobject_args *ap);
577int vop_stddestroyvobject (struct vop_destroyvobject_args *ap);
578int vop_stdgetvobject (struct vop_getvobject_args *ap);
579
597aea93
DR
580void vput (struct vnode *vp);
581void vrele (struct vnode *vp);
48b38f01 582void vrele_noinactive (struct vnode *vp);
b153f746 583void vref (struct vnode *vp);
984263bc 584
2d3e977e
MD
585extern struct vop_ops *default_vnode_vops;
586extern struct vop_ops *spec_vnode_vops;
0961aa92 587extern struct vop_ops *dead_vnode_vops;
984263bc
MD
588
589#endif /* _KERNEL */
590
591#endif /* !_SYS_VNODE_H_ */