Remove various old openssl(1) related manual pages.
[dragonfly.git] / sys / sys / vnode.h
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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.
2c64e990 13 * 3. Neither the name of the University nor the names of its contributors
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14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)vnode.h 8.7 (Berkeley) 2/4/94
30 * $FreeBSD: src/sys/sys/vnode.h,v 1.111.2.19 2002/12/29 18:19:53 dillon Exp $
31 */
32
33#ifndef _SYS_VNODE_H_
34#define _SYS_VNODE_H_
35
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36#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
37
38#ifndef _SYS_QUEUE_H_
984263bc 39#include <sys/queue.h>
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40#endif
41#ifndef _SYS_LOCK_H_
984263bc 42#include <sys/lock.h>
03d6a592 43#endif
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44#ifndef _SYS_EVENT_H_
45#include <sys/event.h>
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46#endif
47#ifndef _SYS_BIOTRACK_H_
81b5c339 48#include <sys/biotrack.h>
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49#endif
50#ifndef _SYS_UIO_H_
984263bc 51#include <sys/uio.h>
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52#endif
53#ifndef _SYS_ACL_H_
984263bc 54#include <sys/acl.h>
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55#endif
56#ifndef _SYS_NAMECACHE_H_
7ea21ed1 57#include <sys/namecache.h>
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58#endif
59#ifndef _SYS_THREAD_H_
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60#include <sys/thread.h>
61#endif
03d6a592 62#ifndef _SYS_VFSOPS_H_
0961aa92 63#include <sys/vfsops.h>
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64#endif
65#ifndef _SYS_VFSCACHE_H_
0961aa92 66#include <sys/vfscache.h>
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67#endif
68#ifndef _SYS_TREE_H_
6bae6177 69#include <sys/tree.h>
03d6a592 70#endif
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71#ifndef _SYS_SYSLINK_RPC_H_
72#include <sys/syslink_rpc.h>
31bd717a 73#endif
03d6a592 74#ifndef _MACHINE_LOCK_H_
984263bc 75#include <machine/lock.h>
03d6a592 76#endif
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77
78/*
79 * The vnode is the focus of all file activity in UNIX. There is a
80 * unique vnode allocated for each active file, each current directory,
81 * each mounted-on file, text file, and the root.
82 */
83
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84/*
85 * Each underlying filesystem allocates its own private area and hangs
86 * it from v_data. If non-null, this area is freed in getnewvnode().
87 */
88TAILQ_HEAD(buflists, buf);
89
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90/*
91 * Struct for mount options to printable formats.
92 */
93struct mountctl_opt {
94 int o_opt;
95 const char *o_name;
96};
97
984263bc 98/*
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99 * The vnode infrastructure is being reorgranized. Most reference-related
100 * fields are locked by the BGL, and most file I/O related operations and
101 * vnode teardown functions are locked by the vnode lock.
102 *
103 * File read operations require a shared lock, file write operations require
104 * an exclusive lock. Most directory operations (read or write) currently
105 * require an exclusive lock due to the side effects stored in the directory
106 * inode (which we intend to fix).
107 *
108 * File reads and writes are further protected by a range lock. The intention
109 * is to be able to break I/O operations down into more easily managed pieces
110 * so vm_page arrays can be passed through rather then UIOs. This work will
111 * occur in multiple stages. The range locks will also eventually be used to
112 * deal with clustered cache coherency issues and, more immediately, to
113 * protect operations associated with the kernel-managed journaling module.
e4c9c0c8 114 *
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115 * NOTE: Certain fields within the vnode structure requires v_token to be
116 * held. The vnode's normal lock need not be held when accessing
117 * these fields as long as the vnode is deterministically referenced
118 * (i.e. can't be ripped out from under the caller). This is typical
119 * for code paths based on descriptors or file pointers, but not for
120 * backdoor code paths that come in via the buffer cache.
6de32ba2 121 *
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122 * v_rbclean_tree
123 * v_rbdirty_tree
124 * v_rbhash_tree
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125 * v_pollinfo
126 *
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127 * NOTE: The vnode operations vector, v_ops, is a double-indirect that
128 * typically points to &v_mount->mnt_vn_use_ops. We use a double
129 * pointer because mnt_vn_use_ops may change dynamically when e.g.
130 * journaling is turned on or off.
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131 *
132 * NOTE: v_filesize is currently only applicable when a VM object is
133 * associated with the vnode. Otherwise it will be set to NOOFFSET.
f63911bf 134 *
aac0aabd 135 * NOTE: The following fields require a spin or token lock. Note that
b12defdc 136 * additional subsystems may use v_token or v_spin for other
aac0aabd 137 * purposes, e.g. vfs/fifofs/fifo_vnops.c
f63911bf 138 *
b12defdc 139 * v_namecache v_spin
f63911bf 140 * v_rb* v_token
984263bc 141 */
6bae6177 142RB_HEAD(buf_rb_tree, buf);
1f1ea522 143RB_HEAD(buf_rb_hash, buf);
6bae6177 144
984263bc 145struct vnode {
b12defdc 146 struct spinlock v_spin;
6b008938 147 int v_flag; /* vnode flags (see below) */
81b5c339 148 int v_writecount;
e4c9c0c8 149 int v_opencount; /* number of explicit opens */
3c37c940 150 int v_auxrefs; /* auxiliary references */
ee173d09 151 int v_refcnt;
d84f6fa1 152 int v_pbuf_count; /* (device nodes only) */
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153 struct bio_track v_track_read; /* track I/O's in progress */
154 struct bio_track v_track_write; /* track I/O's in progress */
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155 struct mount *v_mount; /* ptr to vfs we are in */
156 struct vop_ops **v_ops; /* vnode operations vector */
ee173d09 157 TAILQ_ENTRY(vnode) v_list; /* vnode act/inact/cache/free */
984263bc 158 TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */
ee173d09 159 LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
6bae6177 160 struct buf_rb_tree v_rbclean_tree; /* RB tree of clean bufs */
54df1108 161 struct buf_rb_tree v_rbdirty_tree; /* RB tree of dirty bufs */
1f1ea522 162 struct buf_rb_hash v_rbhash_tree; /* RB tree general lookup */
984263bc 163 enum vtype v_type; /* vnode type */
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164 int16_t v_act; /* use heuristic */
165 int16_t v_state; /* active/free/cached */
984263bc 166 union {
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167 struct socket *vu_socket; /* unix ipc (VSOCK) */
168 struct {
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169 int vu_umajor; /* device number for attach */
170 int vu_uminor;
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171 struct cdev *vu_cdevinfo; /* device (VCHR, VBLK) */
172 SLIST_ENTRY(vnode) vu_cdevnext;
173 } vu_cdev;
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174 struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
175 } v_un;
57f7b636 176 off_t v_filesize; /* file EOF or NOOFFSET */
54078292 177 off_t v_lazyw; /* lazy write iterator */
984263bc 178 struct vm_object *v_object; /* Place to store VM object */
3446c007 179 struct lock v_lock; /* file/dir ops lock */
008b2675 180 struct lwkt_token v_token; /* (see above) */
984263bc 181 enum vtagtype v_tag; /* type of underlying data */
597aea93 182 void *v_data; /* private data for fs */
f63911bf 183 struct namecache_list v_namecache; /* (S) associated nc entries */
984263bc 184 struct {
5b22f1a7 185 struct kqinfo vpi_kqinfo; /* identity of poller(s) */
984263bc 186 } v_pollinfo;
29802dbb 187 struct vmresident *v_resident; /* optional vmresident */
5fae1203 188 struct mount *v_pfsmp; /* real mp for pfs/nullfs mt */
984263bc 189};
984263bc 190#define v_socket v_un.vu_socket
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191#define v_umajor v_un.vu_cdev.vu_umajor
192#define v_uminor v_un.vu_cdev.vu_uminor
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193#define v_rdev v_un.vu_cdev.vu_cdevinfo
194#define v_cdevnext v_un.vu_cdev.vu_cdevnext
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195#define v_fifoinfo v_un.vu_fifoinfo
196
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197/*
198 * Vnode flags.
199 */
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200#define VROOT 0x00000001 /* root of its file system */
201#define VTEXT 0x00000002 /* vnode is a pure text prototype */
202#define VSYSTEM 0x00000004 /* vnode being used by kernel */
203#define VISTTY 0x00000008 /* vnode represents a tty */
204#define VCTTYISOPEN 0x00000010 /* controlling terminal tty is open */
205#define VCKPT 0x00000020 /* checkpoint-restored vnode */
d32579c3 206#define VKVABIO 0x00000040 /* strategy func support KVABIO API */
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207#define VMAYHAVELOCKS 0x00000080 /* maybe posix or flock locks on vp */
208#define VPFSROOT 0x00000100 /* may be a pseudo filesystem root */
209/* open for business 0x00000200 */
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210#define VAGE0 0x00000400 /* Age count for recycling - 2 bits */
211#define VAGE1 0x00000800 /* Age count for recycling - 2 bits */
ee173d09 212/* open for business 0x00001000 */
3e35303e 213#define VOBJBUF 0x00002000 /* Allocate buffers in VM object */
ee173d09 214#define VINACTIVE 0x00004000 /* ran VOP_INACTIVE */
0e8bd897 215/* open for business 0x00008000 */
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216/* open for business 0x00010000 */
217/* open for business 0x00020000 */
3e35303e 218#define VRECLAIMED 0x00040000 /* This vnode has been destroyed */
ee173d09 219/* open for business 0x00080000 */
c0885fab 220#define VNOTSEEKABLE 0x00100000 /* rd/wr ignores file offset */
3e35303e 221#define VONWORKLST 0x00200000 /* On syncer work-list */
bf9f24c1 222#define VISDIRTY 0x00400000 /* inode dirty from VFS */
3e35303e 223#define VOBJDIRTY 0x00800000 /* object might be dirty */
e9b56058 224#define VSWAPCACHE 0x01000000 /* enable swapcache */
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225/* open for business 0x02000000 */
226/* open for business 0x04000000 */
2aff4871 227
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228/*
229 * v_state flags (v_state is interlocked by v_spin and vfs_spin)
230 */
231#define VS_CACHED 0
232#define VS_ACTIVE 1
233#define VS_INACTIVE 2
234#define VS_DYING 3
235
236/*
237 * v_refcnt uses bit 30 to flag that 1->0 transitions require finalization
238 * (actual deactivation) and bit 31 to indicate that deactivation is in
239 * progress.
240 *
241 * The VREFCNT() macro returns a negative number if the vnode is undergoing
242 * termination (value should not be interpreted beyond being negative),
243 * zero if it is cached and has no references, or a positive number
244 * indicating the number of refs.
245 */
246#define VREF_TERMINATE 0x80000000 /* termination in progress */
247#define VREF_FINALIZE 0x40000000 /* deactivate on last vrele */
248#define VREF_MASK 0xBFFFFFFF /* includes VREF_TERMINATE */
249
250#define VREFCNT(vp) ((int)((vp)->v_refcnt & VREF_MASK))
251
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252/*
253 * vmntvnodescan() flags
254 */
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255#define VMSC_GETVP 0x01
256#define VMSC_GETVX 0x02
5fd012e0 257#define VMSC_NOWAIT 0x10
19b97e01 258#define VMSC_ONEPASS 0x20
5fd012e0 259
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260/*
261 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
262 * help with write clustering)
263 */
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264#define IO_UNIT 0x0001 /* do I/O as atomic unit */
265#define IO_APPEND 0x0002 /* append write to end */
266#define IO_SYNC 0x0004 /* do I/O synchronously */
267#define IO_NODELOCKED 0x0008 /* underlying node already locked */
268#define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
269#define IO_VMIO 0x0020 /* data already in VMIO space */
270#define IO_INVAL 0x0040 /* invalidate after I/O */
271#define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
597aea93 272#define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
cb63d1bc 273#define IO_RECURSE 0x0200 /* possibly device-recursive (vn) */
597aea93 274#define IO_CORE 0x0400 /* I/O is part of core dump */
a28fbe62 275#define IO_NRDELAY 0x0800 /* do not block on disk reads */
984263bc 276
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277#define IO_SEQMAX 0x7F /* seq heuristic max value */
278#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
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279
280/*
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281 * Modes. Note that these V-modes must match file S_I*USR, SUID, SGID,
282 * and SVTX flag bits.
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283 */
284#define VSUID 04000 /* set user id on execution */
285#define VSGID 02000 /* set group id on execution */
286#define VSVTX 01000 /* save swapped text even after use */
287#define VREAD 00400 /* read, write, execute permissions */
288#define VWRITE 00200
289#define VEXEC 00100
290
291/*
292 * Token indicating no attribute value yet assigned.
293 */
294#define VNOVAL (-1)
295
296/*
297 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
298 */
597aea93 299#define VLKTIMEOUT (hz / 20 + 1)
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300
301#ifdef _KERNEL
302
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303/*
304 * Convert between vnode types and inode formats (since POSIX.1
305 * defines mode word of stat structure in terms of inode formats).
306 */
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307extern enum vtype iftovt_tab[];
308extern int vttoif_tab[];
309#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
310#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
311#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
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312
313/*
314 * Flags to various vnode functions.
315 */
316#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
317#define FORCECLOSE 0x0002 /* vflush: force file closure */
318#define WRITECLOSE 0x0004 /* vflush: only close writable files */
319#define DOCLOSE 0x0008 /* vclean: close active files */
320#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
984263bc 321
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322#ifdef DIAGNOSTIC
323#define VATTR_NULL(vap) vattr_null(vap)
324#else
325#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
326#endif /* DIAGNOSTIC */
327
328#define NULLVP ((struct vnode *)NULL)
329
330#define VNODEOP_SET(f) \
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331 SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_nadd_vnodeops_sysinit, &f); \
332 SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND,vfs_nrm_vnodeops_sysinit, &f);
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333
334/*
335 * Global vnode data.
336 */
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337struct objcache;
338
984263bc 339extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
28623bf9 340extern struct nchandle rootnch; /* root (i.e. "/") namecache */
9629eb35 341extern int maxvnodes; /* nominal maximum number of vnodes */
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342extern time_t syncdelay; /* max time to delay syncing data */
343extern time_t filedelay; /* time to delay syncing files */
344extern time_t dirdelay; /* time to delay syncing directories */
345extern time_t metadelay; /* time to delay syncing metadata */
70aac194 346extern struct objcache *namei_oc;
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347extern int prtactive; /* nonzero to call vprint() */
348extern struct vattr va_null; /* predefined null vattr structure */
5fd012e0 349extern int numvnodes;
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350extern int inactivevnodes;
351extern int activevnodes;
984263bc 352
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353/*
354 * This macro is very helpful in defining those offsets in the vdesc struct.
355 *
356 * This is stolen from X11R4. I ignored all the fancy stuff for
357 * Crays, so if you decide to port this to such a serious machine,
358 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
359 */
597aea93 360#define VOPARG_OFFSET(p_type,field) \
984263bc 361 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
597aea93 362#define VOPARG_OFFSETOF(s_type,field) \
984263bc 363 VOPARG_OFFSET(s_type*,field)
597aea93 364#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
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365 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
366
625ddaba 367typedef int (*vnodeopv_entry_t)(struct vop_generic_args *);
984263bc 368
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369/*
370 * VOCALL calls an op given an ops vector. We break it out because BSD's
371 * vclean changes the ops vector and then wants to call ops with the old
372 * vector.
373 */
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374
375typedef int (*vocall_func_t)(struct vop_generic_args *);
376
984263bc 377/*
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378 * This call executes the vops vector for the offset stored in the ap's
379 * descriptor of the passed vops rather then the one related to the
380 * ap's vop_ops structure. It is used to chain VOPS calls on behalf of
381 * filesystems from a VFS's context ONLY (that is, from a VFS's own vops
382 * vector function).
984263bc 383 */
0961aa92 384#define VOCALL(vops, ap) \
31bd717a 385 (*(vocall_func_t *)((char *)(vops)+((ap)->a_desc->sd_offset)))(ap)
0961aa92 386
597aea93 387#define VDESC(OP) (& __CONCAT(OP,_desc))
984263bc 388
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389/*
390 * Public vnode manipulation functions.
391 */
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392struct file;
393struct mount;
fad57d0e 394struct nlookupdata;
984263bc 395struct proc;
dadab5e9 396struct thread;
984263bc 397struct stat;
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398struct ucred;
399struct uio;
400struct vattr;
401struct vnode;
50e4012a 402struct syncer_ctx;
984263bc 403
a8873631 404struct vnode *getsynthvnode(const char *devname);
0e9b9130 405void addaliasu (struct vnode *vp, int x, int y);
b13267a5 406int v_associate_rdev(struct vnode *vp, cdev_t dev);
e4c9c0c8 407void v_release_rdev(struct vnode *vp);
b13267a5 408int bdevvp (cdev_t dev, struct vnode **vpp);
5fd012e0 409struct vnode *allocvnode(int lktimeout, int lkflags);
62ae46c9 410void allocvnode_gc(void);
3c37c940 411int freesomevnodes(int count);
6ddb7618 412int getnewvnode (enum vtagtype tag, struct mount *mp,
3446c007 413 struct vnode **vpp, int timo, int lkflags);
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414int getspecialvnode (enum vtagtype tag, struct mount *mp,
415 struct vop_ops **ops, struct vnode **vpp, int timo,
416 int lkflags);
cf6a53ca 417void speedup_syncer (struct mount *mp);
3b0783db 418int vaccess(enum vtype, mode_t, uid_t, gid_t, mode_t, struct ucred *);
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419void vattr_null (struct vattr *vap);
420int vcount (struct vnode *vp);
b13267a5 421int vfinddev (cdev_t dev, enum vtype type, struct vnode **vpp);
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422void vfs_nadd_vnodeops_sysinit (void *);
423void vfs_nrm_vnodeops_sysinit (void *);
424void vfs_add_vnodeops(struct mount *, struct vop_ops *, struct vop_ops **);
425void vfs_rm_vnodeops(struct mount *, struct vop_ops *, struct vop_ops **);
b153f746 426int vflush (struct mount *mp, int rootrefs, int flags);
bf9f24c1 427
5fd012e0 428int vmntvnodescan(struct mount *mp, int flags,
41a01a4d 429 int (*fastfunc)(struct mount *mp, struct vnode *vp, void *data),
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430 int (*slowfunc)(struct mount *mp, struct vnode *vp, void *data),
431 void *data);
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432int vsyncscan(struct mount *mp, int flags,
433 int (*slowfunc)(struct mount *mp, struct vnode *vp, void *data),
434 void *data);
0f79f6b2 435void vclrisdirty(struct vnode *vp);
fd2da346 436void vclrobjdirty(struct vnode *vp);
0f79f6b2 437void vsetisdirty(struct vnode *vp);
fd2da346 438void vsetobjdirty(struct vnode *vp);
bf9f24c1 439
5fd012e0 440void insmntque(struct vnode *vp, struct mount *mp);
41a01a4d 441
3c37c940 442void vclean_vxlocked (struct vnode *vp, int flags);
cf683bae 443void vclean_unlocked (struct vnode *vp);
3c37c940 444void vgone_vxlocked (struct vnode *vp);
b8477cda 445int vrevoke (struct vnode *vp, struct ucred *cred);
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446int vinvalbuf (struct vnode *vp, int save, int slpflag, int slptimeo);
447int vtruncbuf (struct vnode *vp, off_t length, int blksize);
8452310f 448void vnode_pager_setsize (struct vnode *, vm_ooffset_t);
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449int nvtruncbuf (struct vnode *vp, off_t length, int blksize, int boff,
450 int trivial);
8452310f 451int nvextendbuf(struct vnode *vp, off_t olength, off_t nlength,
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452 int oblksize, int nblksize,
453 int oboff, int nboff, int trivial);
454void nvnode_pager_setsize (struct vnode *vp, off_t length,
455 int blksize, int boff);
4e0ecc94 456int vfsync(struct vnode *vp, int waitfor, int passes,
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457 int (*checkdef)(struct buf *),
458 int (*waitoutput)(struct vnode *, struct thread *));
b0d18f7d 459int vinitvmio(struct vnode *vp, off_t filesize, int blksize, int boff);
b153f746 460void vprint (char *label, struct vnode *vp);
87de5057 461int vrecycle (struct vnode *vp);
2ec4b00d 462int vmaxiosize (struct vnode *vp);
81b5c339 463void vn_strategy(struct vnode *vp, struct bio *bio);
c504e38e 464int vn_cache_strategy(struct vnode *vp, struct bio *bio);
3596743e 465int vn_close (struct vnode *vp, int flags, struct file *fp);
22a90887 466void vn_gone (struct vnode *vp);
b153f746 467int vn_isdisk (struct vnode *vp, int *errp);
a11aaa81 468int vn_islocked (struct vnode *vp);
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469int vn_islocked_unlock (struct vnode *vp);
470void vn_islocked_relock (struct vnode *vp, int vpls);
ead16d5b 471int vn_lock (struct vnode *vp, int flags);
a11aaa81 472void vn_unlock (struct vnode *vp);
ead16d5b 473
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474/*#define DEBUG_VN_UNLOCK*/
475#ifdef DEBUG_VN_UNLOCK
476void debug_vn_unlock (struct vnode *vp,
477 const char *filename, int line);
478#define vn_unlock(vp) debug_vn_unlock(vp, __FILE__, __LINE__)
479#endif
480
5d72d6ed 481int vn_get_namelen(struct vnode *, int *);
fad57d0e 482void vn_setspecops (struct file *fp);
5b4cfb7e 483int vn_fullpath (struct proc *p, struct vnode *vn, char **retbuf, char **freebuf, int guess);
fad57d0e 484int vn_open (struct nlookupdata *ndp, struct file *fp, int fmode, int cmode);
a8873631 485int vn_opendisk (const char *devname, int fmode, struct vnode **vpp);
b153f746 486int vn_rdwr (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 487 int len, off_t offset, enum uio_seg segflg, int ioflg,
87de5057 488 struct ucred *cred, int *aresid);
b153f746 489int vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 490 int len, off_t offset, enum uio_seg segflg, int ioflg,
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491 struct ucred *cred, int *aresid);
492int vn_stat (struct vnode *vp, struct stat *sb, struct ucred *cred);
b13267a5 493cdev_t vn_todev (struct vnode *vp);
b153f746 494void vfs_timestamp (struct timespec *);
dad088a5 495size_t vfs_flagstostr(int flags, const struct mountctl_opt *optp, char *buf, size_t len, int *errorp);
349433c9 496void vn_mark_atime(struct vnode *vp, struct thread *td);
fd74079f 497int vfs_inodehashsize(void);
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498int vn_writechk (struct vnode *vp, struct nchandle *nch);
499int ncp_writechk(struct nchandle *nch);
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500int vop_stdopen (struct vop_open_args *ap);
501int vop_stdclose (struct vop_close_args *ap);
177403a9 502int vop_stdmountctl(struct vop_mountctl_args *ap);
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503int vop_stdgetpages(struct vop_getpages_args *ap);
504int vop_stdputpages(struct vop_putpages_args *ap);
349433c9 505int vop_stdmarkatime(struct vop_markatime_args *ap);
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506int vop_stdnoread(struct vop_read_args *ap);
507int vop_stdnowrite(struct vop_write_args *ap);
2d3e977e 508int vop_stdpathconf (struct vop_pathconf_args *ap);
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509int vop_eopnotsupp (struct vop_generic_args *ap);
510int vop_ebadf (struct vop_generic_args *ap);
511int vop_einval (struct vop_generic_args *ap);
512int vop_enotty (struct vop_generic_args *ap);
513int vop_defaultop (struct vop_generic_args *ap);
514int vop_null (struct vop_generic_args *ap);
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515int vop_write_dirent(int *, struct uio *, ino_t, uint8_t, uint16_t,
516 const char *);
b153f746 517
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518int vop_compat_nresolve(struct vop_nresolve_args *ap);
519int vop_compat_nlookupdotdot(struct vop_nlookupdotdot_args *ap);
520int vop_compat_ncreate(struct vop_ncreate_args *ap);
521int vop_compat_nmkdir(struct vop_nmkdir_args *ap);
522int vop_compat_nmknod(struct vop_nmknod_args *ap);
523int vop_compat_nlink(struct vop_nlink_args *ap);
524int vop_compat_nsymlink(struct vop_nsymlink_args *ap);
525int vop_compat_nwhiteout(struct vop_nwhiteout_args *ap);
526int vop_compat_nremove(struct vop_nremove_args *ap);
527int vop_compat_nrmdir(struct vop_nrmdir_args *ap);
528int vop_compat_nrename(struct vop_nrename_args *ap);
529
e3332475 530void vx_lock (struct vnode *vp);
5fd012e0 531void vx_unlock (struct vnode *vp);
e3332475 532void vx_get (struct vnode *vp);
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533int vx_get_nonblock (struct vnode *vp);
534void vx_put (struct vnode *vp);
87de5057 535int vget (struct vnode *vp, int lockflag);
597aea93 536void vput (struct vnode *vp);
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537void vhold (struct vnode *);
538void vdrop (struct vnode *);
b153f746 539void vref (struct vnode *vp);
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540void vrele (struct vnode *vp);
541void vsetflags (struct vnode *vp, int flags);
542void vclrflags (struct vnode *vp, int flags);
543
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544/*#define DEBUG_VPUT*/
545#ifdef DEBUG_VPUT
546void debug_vput (struct vnode *vp, const char *filename, int line);
547#define vput(vp) debug_vput(vp, __FILE__, __LINE__)
548#endif
549
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550void vfs_subr_init(void);
551void vfs_mount_init(void);
552void vfs_lock_init(void);
aac0aabd 553void mount_init(struct mount *mp);
3536c341 554int countcachedvnodes(int gupdate);
5fd012e0 555
77912481 556void vn_syncer_add(struct vnode *, int);
f4428f2f 557void vn_syncer_remove(struct vnode *, int);
50e4012a 558void vn_syncer_thr_create(struct mount *);
bf9f24c1 559void vn_syncer_thr_stop(struct mount *);
50e4012a 560
66a1ddf5 561extern struct vop_ops default_vnode_vops;
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562extern struct vop_ops dead_vnode_vops;
563
564extern struct vop_ops *default_vnode_vops_p;
66a1ddf5 565extern struct vop_ops *dead_vnode_vops_p;
984263bc 566
03d6a592 567#endif /* _KERNEL */
984263bc 568
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569#endif /* _KERNEL || _KERNEL_STRUCTURES */
570#endif /* !_SYS_VNODE_H_ */