Style(9) cleanup to src/sys/vfs, stage 20/21: umapfs.
[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 $
597aea93 35 * $DragonFly: src/sys/sys/vnode.h,v 1.15 2004/04/24 04:32:03 drhodus 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>
7ea21ed1 46#include <sys/namecache.h>
984263bc 47
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48#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
49#include <sys/thread.h>
50#endif
51
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52#include <machine/lock.h>
53
54/*
55 * The vnode is the focus of all file activity in UNIX. There is a
56 * unique vnode allocated for each active file, each current directory,
57 * each mounted-on file, text file, and the root.
58 */
59
60/*
61 * Vnode types. VNON means no type.
62 */
63enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD };
64
65/*
66 * Vnode tag types.
67 * These are for the benefit of external programs only (e.g., pstat)
68 * and should NEVER be inspected by the kernel.
69 */
70enum vtagtype {
71 VT_NON, VT_UFS, VT_NFS, VT_MFS, VT_PC, VT_LFS, VT_LOFS, VT_FDESC,
72 VT_PORTAL, VT_NULL, VT_UMAP, VT_KERNFS, VT_PROCFS, VT_AFS, VT_ISOFS,
73 VT_UNION, VT_MSDOSFS, VT_TFS, VT_VFS, VT_CODA, VT_NTFS,
03998195 74 VT_HPFS, VT_NWFS, VT_SMBFS, VT_UDF
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75};
76
77/*
78 * Each underlying filesystem allocates its own private area and hangs
79 * it from v_data. If non-null, this area is freed in getnewvnode().
80 */
81TAILQ_HEAD(buflists, buf);
82
b153f746 83typedef int vop_t (void *);
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84
85/*
86 * Reading or writing any of these items requires holding the appropriate lock.
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87 * v_freelist is locked by the global vnode_free_list token.
88 * v_mntvnodes is locked by the global mntvnodes token.
984263bc 89 * v_flag, v_usecount, v_holdcount and v_writecount are
8a8d5d85 90 * locked by the v_interlock token.
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91 * v_pollinfo is locked by the lock contained inside it.
92 */
93struct vnode {
94 u_long v_flag; /* vnode flags (see below) */
95 int v_usecount; /* reference count of users */
96 int v_writecount; /* reference count of writers */
97 int v_holdcnt; /* page & buffer references */
98 u_long v_id; /* capability identifier */
99 struct mount *v_mount; /* ptr to vfs we are in */
100 vop_t **v_op; /* vnode operations vector */
101 TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
102 TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */
103 struct buflists v_cleanblkhd; /* clean blocklist head */
104 struct buflists v_dirtyblkhd; /* dirty blocklist head */
105 LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
106 long v_numoutput; /* num of writes in progress */
107 enum vtype v_type; /* vnode type */
108 union {
109 struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
110 struct socket *vu_socket; /* unix ipc (VSOCK) */
111 struct {
112 struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */
113 SLIST_ENTRY(vnode) vu_specnext;
114 } vu_spec;
115 struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
116 } v_un;
117 struct nqlease *v_lease; /* Soft reference to lease */
118 daddr_t v_lastw; /* last write (write cluster) */
119 daddr_t v_cstart; /* start block of cluster */
120 daddr_t v_lasta; /* last allocation */
121 int v_clen; /* length of current cluster */
122 struct vm_object *v_object; /* Place to store VM object */
41a01a4d 123 lwkt_token_t v_interlock; /* lock on usecount and flag */
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124 struct lock *v_vnlock; /* used for non-locking fs's */
125 enum vtagtype v_tag; /* type of underlying data */
597aea93 126 void *v_data; /* private data for fs */
7ea21ed1 127 struct namecache_list v_namecache; /* associated nc entries */
984263bc 128 struct {
8a8d5d85 129 struct lwkt_token vpi_token; /* lock to protect below */
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130 struct selinfo vpi_selinfo; /* identity of poller(s) */
131 short vpi_events; /* what they are looking for */
132 short vpi_revents; /* what has happened */
133 } v_pollinfo;
41a01a4d 134 struct thread *v_vxthread; /* thread owning VXLOCK */
29802dbb 135 struct vmresident *v_resident; /* optional vmresident */
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136#ifdef DEBUG_LOCKS
137 const char *filename; /* Source file doing locking */
138 int line; /* Line number doing locking */
139#endif
140};
141#define v_mountedhere v_un.vu_mountedhere
142#define v_socket v_un.vu_socket
143#define v_rdev v_un.vu_spec.vu_specinfo
144#define v_specnext v_un.vu_spec.vu_specnext
145#define v_fifoinfo v_un.vu_fifoinfo
146
147#define VN_POLLEVENT(vp, events) \
148 do { \
149 if ((vp)->v_pollinfo.vpi_events & (events)) \
150 vn_pollevent((vp), (events)); \
151 } while (0)
152
153/*
154 * Vnode flags.
155 */
156#define VROOT 0x00001 /* root of its file system */
157#define VTEXT 0x00002 /* vnode is a pure text prototype */
158#define VSYSTEM 0x00004 /* vnode being used by kernel */
159#define VISTTY 0x00008 /* vnode represents a tty */
160#define VXLOCK 0x00100 /* vnode is locked to change underlying type */
161#define VXWANT 0x00200 /* process is waiting for vnode */
162#define VBWAIT 0x00400 /* waiting for output to complete */
163/* open for business 0x00800 */
164/* open for business 0x01000 */
165#define VOBJBUF 0x02000 /* Allocate buffers in VM object */
166/* open for business 0x04000 */
167#define VAGE 0x08000 /* Insert vnode at head of free list */
168#define VOLOCK 0x10000 /* vnode is locked waiting for an object */
169#define VOWANT 0x20000 /* a process is waiting for VOLOCK */
170#define VDOOMED 0x40000 /* This vnode is being recycled */
171#define VFREE 0x80000 /* This vnode is on the freelist */
41a01a4d 172#define VINFREE 0x100000 /* This vnode is in the midst of being freed */
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173#define VONWORKLST 0x200000 /* On syncer work-list */
174#define VMOUNT 0x400000 /* Mount in progress */
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175#define VOBJDIRTY 0x800000 /* object might be dirty */
176#define VPLACEMARKER 0x1000000 /* dummy vnode placemarker */
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177
178/*
179 * Vnode attributes. A field value of VNOVAL represents a field whose value
180 * is unavailable (getattr) or which is not to be changed (setattr).
181 */
182struct vattr {
183 enum vtype va_type; /* vnode type (for create) */
184 u_short va_mode; /* files access mode and type */
185 short va_nlink; /* number of references to file */
186 uid_t va_uid; /* owner user id */
187 gid_t va_gid; /* owner group id */
188 udev_t va_fsid; /* file system id */
189 long va_fileid; /* file id */
190 u_quad_t va_size; /* file size in bytes */
191 long va_blocksize; /* blocksize preferred for i/o */
192 struct timespec va_atime; /* time of last access */
193 struct timespec va_mtime; /* time of last modification */
194 struct timespec va_ctime; /* time file changed */
195 u_long va_gen; /* generation number of file */
196 u_long va_flags; /* flags defined for file */
197 udev_t va_rdev; /* device the special file represents */
198 u_quad_t va_bytes; /* bytes of disk space held by file */
199 u_quad_t va_filerev; /* file modification number */
200 u_int va_vaflags; /* operations flags, see below */
201 long va_spare; /* remain quad aligned */
202};
203
204/*
205 * Flags for va_vaflags.
206 */
207#define VA_UTIMES_NULL 0x01 /* utimes argument was NULL */
208#define VA_EXCLUSIVE 0x02 /* exclusive create request */
209
210/*
211 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
212 * help with write clustering)
213 */
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214#define IO_UNIT 0x0001 /* do I/O as atomic unit */
215#define IO_APPEND 0x0002 /* append write to end */
216#define IO_SYNC 0x0004 /* do I/O synchronously */
217#define IO_NODELOCKED 0x0008 /* underlying node already locked */
218#define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
219#define IO_VMIO 0x0020 /* data already in VMIO space */
220#define IO_INVAL 0x0040 /* invalidate after I/O */
221#define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
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222#define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
223#define IO_NOWDRAIN 0x0200 /* do not block on wdrain */
224#define IO_CORE 0x0400 /* I/O is part of core dump */
984263bc 225
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226#define IO_SEQMAX 0x7F /* seq heuristic max value */
227#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
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228
229/*
230 * Modes. Some values same as Ixxx entries from inode.h for now.
231 */
232#define VSUID 04000 /* set user id on execution */
233#define VSGID 02000 /* set group id on execution */
234#define VSVTX 01000 /* save swapped text even after use */
235#define VREAD 00400 /* read, write, execute permissions */
236#define VWRITE 00200
237#define VEXEC 00100
238
239/*
240 * Token indicating no attribute value yet assigned.
241 */
242#define VNOVAL (-1)
243
244/*
245 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
246 */
597aea93 247#define VLKTIMEOUT (hz / 20 + 1)
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248
249#ifdef _KERNEL
250
251#ifdef MALLOC_DECLARE
252MALLOC_DECLARE(M_VNODE);
253#endif
254
255/*
256 * Convert between vnode types and inode formats (since POSIX.1
257 * defines mode word of stat structure in terms of inode formats).
258 */
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259extern enum vtype iftovt_tab[];
260extern int vttoif_tab[];
261#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
262#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
263#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
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264
265/*
266 * Flags to various vnode functions.
267 */
268#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
269#define FORCECLOSE 0x0002 /* vflush: force file closure */
270#define WRITECLOSE 0x0004 /* vflush: only close writable files */
271#define DOCLOSE 0x0008 /* vclean: close active files */
272#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
273#define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */
274
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275#ifdef DIAGNOSTIC
276#define VATTR_NULL(vap) vattr_null(vap)
277#else
278#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
279#endif /* DIAGNOSTIC */
280
281#define NULLVP ((struct vnode *)NULL)
282
283#define VNODEOP_SET(f) \
284 C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops, &f); \
285 C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND, vfs_rm_vnodeops, &f);
286
287/*
288 * Global vnode data.
289 */
290extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
291extern int desiredvnodes; /* number of vnodes desired */
292extern time_t syncdelay; /* max time to delay syncing data */
293extern time_t filedelay; /* time to delay syncing files */
294extern time_t dirdelay; /* time to delay syncing directories */
295extern time_t metadelay; /* time to delay syncing metadata */
296extern struct vm_zone *namei_zone;
297extern int prtactive; /* nonzero to call vprint() */
298extern struct vattr va_null; /* predefined null vattr structure */
299extern int vfs_ioopt;
300
301/*
302 * Macro/function to check for client cache inconsistency w.r.t. leasing.
303 */
304#define LEASE_READ 0x1 /* Check lease for readers */
305#define LEASE_WRITE 0x2 /* Check lease for modifiers */
306
307
b153f746 308extern void (*lease_updatetime) (int deltat);
984263bc 309
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310#define VI_LOCK(vlock, vp) lwkt_gettoken(vlock, (vp)->v_interlock)
311#define VI_UNLOCK(vlock, vp) lwkt_reltoken(vlock)
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312
313#endif /* _KERNEL */
314
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315/*
316 * Mods for extensibility.
317 */
318
319/*
320 * Flags for vdesc_flags:
321 */
597aea93 322#define VDESC_MAX_VPS 16
984263bc 323/* Low order 16 flag bits are reserved for willrele flags for vp arguments. */
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324#define VDESC_VP0_WILLRELE 0x0001
325#define VDESC_VP1_WILLRELE 0x0002
326#define VDESC_VP2_WILLRELE 0x0004
327#define VDESC_VP3_WILLRELE 0x0008
328#define VDESC_NOMAP_VPP 0x0100
329#define VDESC_VPP_WILLRELE 0x0200
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330
331/*
332 * VDESC_NO_OFFSET is used to identify the end of the offset list
333 * and in places where no such field exists.
334 */
335#define VDESC_NO_OFFSET -1
336
337/*
338 * This structure describes the vnode operation taking place.
339 */
340struct vnodeop_desc {
341 int vdesc_offset; /* offset in vector--first for speed */
342 char *vdesc_name; /* a readable name for debugging */
343 int vdesc_flags; /* VDESC_* flags */
344
345 /*
346 * These ops are used by bypass routines to map and locate arguments.
347 * Creds and procs are not needed in bypass routines, but sometimes
348 * they are useful to (for example) transport layers.
349 * Nameidata is useful because it has a cred in it.
350 */
351 int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */
352 int vdesc_vpp_offset; /* return vpp location */
353 int vdesc_cred_offset; /* cred location, if any */
354 int vdesc_proc_offset; /* proc location, if any */
355 int vdesc_componentname_offset; /* if any */
356 /*
357 * Finally, we've got a list of private data (about each operation)
358 * for each transport layer. (Support to manage this list is not
359 * yet part of BSD.)
360 */
361 caddr_t *vdesc_transports;
362};
363
364#ifdef _KERNEL
365/*
366 * A list of all the operation descs.
367 */
368extern struct vnodeop_desc *vnodeop_descs[];
369
370/*
371 * Interlock for scanning list of vnodes attached to a mountpoint
372 */
8a8d5d85 373extern struct lwkt_token mntvnode_token;
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374
375/*
376 * This macro is very helpful in defining those offsets in the vdesc struct.
377 *
378 * This is stolen from X11R4. I ignored all the fancy stuff for
379 * Crays, so if you decide to port this to such a serious machine,
380 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
381 */
597aea93 382#define VOPARG_OFFSET(p_type,field) \
984263bc 383 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
597aea93 384#define VOPARG_OFFSETOF(s_type,field) \
984263bc 385 VOPARG_OFFSET(s_type*,field)
597aea93 386#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
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387 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
388
389
390/*
391 * This structure is used to configure the new vnodeops vector.
392 */
393struct vnodeopv_entry_desc {
394 struct vnodeop_desc *opve_op; /* which operation this is */
395 vop_t *opve_impl; /* code implementing this operation */
396};
397struct vnodeopv_desc {
398 /* ptr to the ptr to the vector where op should go */
399 vop_t ***opv_desc_vector_p;
400 struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
401};
402
403/*
404 * A generic structure.
405 * This can be used by bypass routines to identify generic arguments.
406 */
407struct vop_generic_args {
408 struct vnodeop_desc *a_desc;
409 /* other random data follows, presumably */
410};
411
412
413#ifdef DEBUG_VFS_LOCKS
414/*
415 * Macros to aid in tracing VFS locking problems. Not totally
416 * reliable since if the process sleeps between changing the lock
417 * state and checking it with the assert, some other process could
418 * change the state. They are good enough for debugging a single
419 * filesystem using a single-threaded test. I find that 'cvs co src'
420 * is a pretty good test.
421 */
422
423/*
424 * [dfr] Kludge until I get around to fixing all the vfs locking.
425 */
426#define IS_LOCKING_VFS(vp) ((vp)->v_tag == VT_UFS \
427 || (vp)->v_tag == VT_MFS \
428 || (vp)->v_tag == VT_NFS \
429 || (vp)->v_tag == VT_LFS \
430 || (vp)->v_tag == VT_ISOFS \
431 || (vp)->v_tag == VT_MSDOSFS)
432
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433#define ASSERT_VOP_LOCKED(vp, str) assert_vop_locked(vp, str)
434#define ASSERT_VOP_UNLOCKED(vp, str) assert_vop_unlocked(vp, str);
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435
436#define ASSERT_VOP_ELOCKED(vp, str) \
437do { \
438 struct vnode *_vp = (vp); \
439 \
440 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 441 VOP_ISLOCKED(_vp, curthread) != LK_EXCLUSIVE) \
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442 panic("%s: %p is not exclusive locked but should be", \
443 str, _vp); \
444} while (0)
445
446#define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
447do { \
448 struct vnode *_vp = (vp); \
449 \
450 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 451 VOP_ISLOCKED(_vp, curthread) != LK_EXCLOTHER) \
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452 panic("%s: %p is not exclusive locked by another proc", \
453 str, _vp); \
454} while (0)
455
456#define ASSERT_VOP_SLOCKED(vp, str) \
457do { \
458 struct vnode *_vp = (vp); \
459 \
460 if (_vp && IS_LOCKING_VFS(_vp) && \
461 VOP_ISLOCKED(_vp, NULL) != LK_SHARED) \
462 panic("%s: %p is not locked shared but should be", \
463 str, _vp); \
464} while (0)
465
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466void assert_vop_locked(struct vnode *vp, const char *str);
467void assert_vop_unlocked(struct vnode *vp, const char *str);
468
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469#else
470
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471#define ASSERT_VOP_LOCKED(vp, str)
472#define ASSERT_VOP_UNLOCKED(vp, str)
984263bc 473
4f322a84 474#endif /* DEBUG_VFS_LOCKS */
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475
476/*
477 * VOCALL calls an op given an ops vector. We break it out because BSD's
478 * vclean changes the ops vector and then wants to call ops with the old
479 * vector.
480 */
597aea93 481#define VOCALL(OPSV,OFF,AP) (( *((OPSV)[(OFF)])) (AP))
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482
483/*
484 * This call works for vnodes in the kernel.
485 */
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486#define VCALL(VP,OFF,AP) VOCALL((VP)->v_op,(OFF),(AP))
487#define VDESC(OP) (& __CONCAT(OP,_desc))
488#define VOFFSET(OP) (VDESC(OP)->vdesc_offset)
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489
490/*
491 * VMIO support inline
492 */
493
494extern int vmiodirenable;
495
496static __inline int
497vn_canvmio(struct vnode *vp)
498{
499 if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
500 return(TRUE);
501 return(FALSE);
502}
503
504/*
505 * Finally, include the default set of vnode operations.
506 */
507#include "vnode_if.h"
508
509/*
510 * Public vnode manipulation functions.
511 */
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512struct file;
513struct mount;
514struct nameidata;
515struct ostat;
516struct proc;
dadab5e9 517struct thread;
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518struct stat;
519struct nstat;
520struct ucred;
521struct uio;
522struct vattr;
523struct vnode;
524struct vop_bwrite_args;
525
b153f746 526extern int (*lease_check_hook) (struct vop_lease_args *);
984263bc 527
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528void addalias (struct vnode *vp, dev_t nvp_rdev);
529void addaliasu (struct vnode *vp, udev_t nvp_rdev);
530int bdevvp (dev_t dev, struct vnode **vpp);
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531void cvtstat (struct stat *st, struct ostat *ost);
532void cvtnstat (struct stat *sb, struct nstat *nsb);
597aea93 533int getnewvnode (enum vtagtype tag,
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534 struct mount *mp, vop_t **vops, struct vnode **vpp);
535int lease_check (struct vop_lease_args *ap);
536int spec_vnoperate (struct vop_generic_args *);
537int speedup_syncer (void);
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538void vattr_null (struct vattr *vap);
539int vcount (struct vnode *vp);
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540void vdrop (struct vnode *);
541int vfinddev (dev_t dev, enum vtype type, struct vnode **vpp);
542void vfs_add_vnodeops (const void *);
543void vfs_rm_vnodeops (const void *);
544int vflush (struct mount *mp, int rootrefs, int flags);
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545int vmntvnodescan(struct mount *mp,
546 int (*fastfunc)(struct mount *mp, struct vnode *vp, void *data),
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547 int (*slowfunc)(struct mount *mp, struct vnode *vp, lwkt_tokref_t vlock,
548 void *data), void *data);
41a01a4d 549
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550int vget (struct vnode *vp, lwkt_tokref_t vlock, int lockflag, struct thread *td);
551void vgone (struct vnode *vp);
41a01a4d 552void vgonel (struct vnode *vp, lwkt_tokref_t vlock, struct thread *td);
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553void vhold (struct vnode *);
554int vinvalbuf (struct vnode *vp, int save,
555 struct thread *td, int slpflag, int slptimeo);
556int vtruncbuf (struct vnode *vp, struct thread *td,
557 off_t length, int blksize);
558void vprint (char *label, struct vnode *vp);
41a01a4d 559int vrecycle (struct vnode *vp, struct lwkt_tokref *inter_lkp,
b153f746 560 struct thread *td);
597aea93 561int vn_close (struct vnode *vp, int flags, struct thread *td);
b153f746 562int vn_isdisk (struct vnode *vp, int *errp);
41a01a4d 563int vn_lock (struct vnode *vp, lwkt_tokref_t vlock, int flags, struct thread *td);
984263bc 564#ifdef DEBUG_LOCKS
41a01a4d 565int debug_vn_lock (struct vnode *vp, lwkt_tokref_t vlock, int flags, struct thread *td,
b153f746 566 const char *filename, int line);
41a01a4d 567#define vn_lock(vp,vlock,flags,p) debug_vn_lock(vp,vlock,flags,p,__FILE__,__LINE__)
984263bc 568#endif
597aea93 569int vn_open (struct nameidata *ndp, int fmode, int cmode);
b153f746
RG
570void vn_pollevent (struct vnode *vp, int events);
571void vn_pollgone (struct vnode *vp);
572int vn_pollrecord (struct vnode *vp, struct thread *td, int events);
573int vn_rdwr (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 574 int len, off_t offset, enum uio_seg segflg, int ioflg,
b153f746
RG
575 struct ucred *cred, int *aresid, struct thread *td);
576int vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 577 int len, off_t offset, enum uio_seg segflg, int ioflg,
b153f746
RG
578 struct ucred *cred, int *aresid, struct thread *td);
579int vn_stat (struct vnode *vp, struct stat *sb, struct thread *td);
580dev_t vn_todev (struct vnode *vp);
b153f746
RG
581int vfs_object_create (struct vnode *vp, struct thread *td);
582void vfs_timestamp (struct timespec *);
597aea93 583int vn_writechk (struct vnode *vp);
b153f746
RG
584int vop_stdbwrite (struct vop_bwrite_args *ap);
585int vop_stdislocked (struct vop_islocked_args *);
586int vop_stdlock (struct vop_lock_args *);
587int vop_stdunlock (struct vop_unlock_args *);
588int vop_noislocked (struct vop_islocked_args *);
589int vop_nolock (struct vop_lock_args *);
590int vop_nopoll (struct vop_poll_args *);
591int vop_nounlock (struct vop_unlock_args *);
592int vop_stdpathconf (struct vop_pathconf_args *);
593int vop_stdpoll (struct vop_poll_args *);
594int vop_revoke (struct vop_revoke_args *);
595int vop_sharedlock (struct vop_lock_args *);
596int vop_eopnotsupp (struct vop_generic_args *ap);
597int vop_ebadf (struct vop_generic_args *ap);
598int vop_einval (struct vop_generic_args *ap);
599int vop_enotty (struct vop_generic_args *ap);
600int vop_defaultop (struct vop_generic_args *ap);
601int vop_null (struct vop_generic_args *ap);
602int vop_panic (struct vop_generic_args *ap);
603int vop_stdcreatevobject (struct vop_createvobject_args *ap);
604int vop_stddestroyvobject (struct vop_destroyvobject_args *ap);
605int vop_stdgetvobject (struct vop_getvobject_args *ap);
606
597aea93
DR
607void vput (struct vnode *vp);
608void vrele (struct vnode *vp);
b153f746 609void vref (struct vnode *vp);
984263bc
MD
610
611extern vop_t **default_vnodeop_p;
612extern vop_t **spec_vnodeop_p;
613
614#endif /* _KERNEL */
615
616#endif /* !_SYS_VNODE_H_ */