thread libs: also remove the static libraries from /usr/lib
[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 $
67863d04 35 * $DragonFly: src/sys/sys/vnode.h,v 1.83 2008/09/17 21:44:19 dillon Exp $
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36 */
37
38#ifndef _SYS_VNODE_H_
39#define _SYS_VNODE_H_
40
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41#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
42
43#ifndef _SYS_QUEUE_H_
984263bc 44#include <sys/queue.h>
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45#endif
46#ifndef _SYS_LOCK_H_
984263bc 47#include <sys/lock.h>
03d6a592 48#endif
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49#ifndef _SYS_SELINFO_H_
50#include <sys/selinfo.h>
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51#endif
52#ifndef _SYS_BIOTRACK_H_
81b5c339 53#include <sys/biotrack.h>
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54#endif
55#ifndef _SYS_UIO_H_
984263bc 56#include <sys/uio.h>
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57#endif
58#ifndef _SYS_ACL_H_
984263bc 59#include <sys/acl.h>
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60#endif
61#ifndef _SYS_NAMECACHE_H_
7ea21ed1 62#include <sys/namecache.h>
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63#endif
64#ifndef _SYS_THREAD_H_
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65#include <sys/thread.h>
66#endif
03d6a592 67#ifndef _SYS_VFSOPS_H_
0961aa92 68#include <sys/vfsops.h>
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69#endif
70#ifndef _SYS_VFSCACHE_H_
0961aa92 71#include <sys/vfscache.h>
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72#endif
73#ifndef _SYS_TREE_H_
6bae6177 74#include <sys/tree.h>
03d6a592 75#endif
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76#ifndef _SYS_SYSLINK_RPC_H_
77#include <sys/syslink_rpc.h>
31bd717a 78#endif
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79#ifndef _SYS_SYSREF_H_
80#include <sys/sysref.h>
81#endif
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82#ifndef _SYS_CCMS_H_
83#include <sys/ccms.h>
84#endif
03d6a592 85#ifndef _MACHINE_LOCK_H_
984263bc 86#include <machine/lock.h>
03d6a592 87#endif
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88
89/*
90 * The vnode is the focus of all file activity in UNIX. There is a
91 * unique vnode allocated for each active file, each current directory,
92 * each mounted-on file, text file, and the root.
93 */
94
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95/*
96 * Each underlying filesystem allocates its own private area and hangs
97 * it from v_data. If non-null, this area is freed in getnewvnode().
98 */
99TAILQ_HEAD(buflists, buf);
100
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101/*
102 * Struct for mount options to printable formats.
103 */
104struct mountctl_opt {
105 int o_opt;
106 const char *o_name;
107};
108
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109/*
110 * Range locks protect offset ranges in files and directories at a high
111 * level, allowing the actual I/O to be broken down into smaller pieces.
112 * Range locks will eventually be integrated into the clustered cache
113 * coherency infrastructure.
114 *
115 * We use a simple data structure for now, but eventually this should
116 * probably be a btree or red-black tree.
117 */
118struct vrangelock;
119
120TAILQ_HEAD(vrangelock_list, vrangelock);
121
122struct vrangehead {
123 struct vrangelock_list vh_list;
124};
125
126struct vrangelock {
127 TAILQ_ENTRY(vrangelock) vr_node;
128 int vr_flags;
129 off_t vr_offset;
130 off_t vr_length;
131};
132
133#define RNGL_WAITING 0x0001 /* waiting for lock, else has lock */
134#define RNGL_CHECK 0x0002 /* check for work on unlock */
135#define RNGL_SHARED 0x0004 /* shared lock, else exclusive */
136#define RNGL_ONLIST 0x0008 /* sanity check */
137
138static __inline
139void
140vrange_init(struct vrangelock *vr, int flags, off_t offset, off_t length)
141{
142 vr->vr_flags = flags;
143 vr->vr_offset = offset;
144 vr->vr_length = length;
145}
146
147#ifdef _KERNEL
148
149void vrange_lock(struct vnode *vp, struct vrangelock *vr);
150void vrange_unlock(struct vnode *vp, struct vrangelock *vr);
151
152static __inline
153void
154vrange_lock_shared(struct vnode *vp, struct vrangelock *vr,
155 off_t offset, off_t length)
156{
157 vrange_init(vr, RNGL_SHARED, offset, length);
158 vrange_lock(vp, vr);
159}
160
161static __inline
162void
163vrange_lock_excl(struct vnode *vp, struct vrangelock *vr,
164 off_t offset, off_t length)
165{
166 vrange_init(vr, 0, offset, length);
167 vrange_lock(vp, vr);
168}
169
170#endif
0961aa92 171
984263bc 172/*
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173 * The vnode infrastructure is being reorgranized. Most reference-related
174 * fields are locked by the BGL, and most file I/O related operations and
175 * vnode teardown functions are locked by the vnode lock.
176 *
177 * File read operations require a shared lock, file write operations require
178 * an exclusive lock. Most directory operations (read or write) currently
179 * require an exclusive lock due to the side effects stored in the directory
180 * inode (which we intend to fix).
181 *
182 * File reads and writes are further protected by a range lock. The intention
183 * is to be able to break I/O operations down into more easily managed pieces
184 * so vm_page arrays can be passed through rather then UIOs. This work will
185 * occur in multiple stages. The range locks will also eventually be used to
186 * deal with clustered cache coherency issues and, more immediately, to
187 * protect operations associated with the kernel-managed journaling module.
e4c9c0c8 188 *
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189 * Certain fields within the vnode structure requires v_token to be held.
190 *
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191 * v_rbclean_tree
192 * v_rbdirty_tree
193 * v_rbhash_tree
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194 * v_pollinfo
195 *
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196 * NOTE: The vnode operations vector, v_ops, is a double-indirect that
197 * typically points to &v_mount->mnt_vn_use_ops. We use a double
198 * pointer because mnt_vn_use_ops may change dynamically when e.g.
199 * journaling is turned on or off.
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200 *
201 * NOTE: v_filesize is currently only applicable when a VM object is
202 * associated with the vnode. Otherwise it will be set to NOOFFSET.
984263bc 203 */
6bae6177 204RB_HEAD(buf_rb_tree, buf);
1f1ea522 205RB_HEAD(buf_rb_hash, buf);
6bae6177 206
984263bc 207struct vnode {
6b008938 208 int v_flag; /* vnode flags (see below) */
81b5c339 209 int v_writecount;
e4c9c0c8 210 int v_opencount; /* number of explicit opens */
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211 int v_auxrefs; /* auxiliary references */
212 struct sysref v_sysref; /* normal references */
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213 struct bio_track v_track_read; /* track I/O's in progress */
214 struct bio_track v_track_write; /* track I/O's in progress */
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215 struct mount *v_mount; /* ptr to vfs we are in */
216 struct vop_ops **v_ops; /* vnode operations vector */
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217 TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
218 TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */
6bae6177 219 struct buf_rb_tree v_rbclean_tree; /* RB tree of clean bufs */
54df1108 220 struct buf_rb_tree v_rbdirty_tree; /* RB tree of dirty bufs */
1f1ea522 221 struct buf_rb_hash v_rbhash_tree; /* RB tree general lookup */
984263bc 222 LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
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223 enum vtype v_type; /* vnode type */
224 union {
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225 struct socket *vu_socket; /* unix ipc (VSOCK) */
226 struct {
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227 int vu_umajor; /* device number for attach */
228 int vu_uminor;
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229 struct cdev *vu_cdevinfo; /* device (VCHR, VBLK) */
230 SLIST_ENTRY(vnode) vu_cdevnext;
231 } vu_cdev;
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232 struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
233 } v_un;
57f7b636 234 off_t v_filesize; /* file EOF or NOOFFSET */
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235 off_t v_lazyw; /* lazy write iterator */
236 off_t v_lastw; /* last write (write cluster) */
237 off_t v_cstart; /* start block of cluster */
238 off_t v_lasta; /* last allocation */
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239 int v_clen; /* length of current cluster */
240 struct vm_object *v_object; /* Place to store VM object */
3446c007 241 struct lock v_lock; /* file/dir ops lock */
6de32ba2 242 struct lwkt_token v_token; /* structural access */
984263bc 243 enum vtagtype v_tag; /* type of underlying data */
597aea93 244 void *v_data; /* private data for fs */
7ea21ed1 245 struct namecache_list v_namecache; /* associated nc entries */
984263bc 246 struct {
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247 struct selinfo vpi_selinfo; /* identity of poller(s) */
248 short vpi_events; /* what they are looking for */
249 short vpi_revents; /* what has happened */
250 } v_pollinfo;
29802dbb 251 struct vmresident *v_resident; /* optional vmresident */
6ddb7618 252 struct vrangehead v_range; /* range lock */
9bfc4d6d 253 struct ccms_dataspace v_ccms; /* cache coherency */
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254#ifdef DEBUG_LOCKS
255 const char *filename; /* Source file doing locking */
256 int line; /* Line number doing locking */
257#endif
5fd012e0 258 void *v_xaddr;
984263bc 259};
984263bc 260#define v_socket v_un.vu_socket
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261#define v_umajor v_un.vu_cdev.vu_umajor
262#define v_uminor v_un.vu_cdev.vu_uminor
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263#define v_rdev v_un.vu_cdev.vu_cdevinfo
264#define v_cdevnext v_un.vu_cdev.vu_cdevnext
984263bc 265#define v_fifoinfo v_un.vu_fifoinfo
9d265729 266#define v_spinlock v_lock.lk_spinlock
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267
268#define VN_POLLEVENT(vp, events) \
269 do { \
270 if ((vp)->v_pollinfo.vpi_events & (events)) \
271 vn_pollevent((vp), (events)); \
272 } while (0)
273
274/*
275 * Vnode flags.
276 */
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277#define VROOT 0x00000001 /* root of its file system */
278#define VTEXT 0x00000002 /* vnode is a pure text prototype */
279#define VSYSTEM 0x00000004 /* vnode being used by kernel */
280#define VISTTY 0x00000008 /* vnode represents a tty */
281#define VCTTYISOPEN 0x00000010 /* controlling terminal tty is open */
282#define VCKPT 0x00000020 /* checkpoint-restored vnode */
283#define VFSMID 0x00000040 /* request FSMID update */
284#define VMAYHAVELOCKS 0x00000080 /* maybe posix or flock locks on vp */
285#define VPFSROOT 0x00000100 /* may be a pseudo filesystem root */
286/* open for business 0x00000200 */
287/* open for business 0x00000400 */
288/* open for business 0x00000800 */
289#define VCACHED 0x00001000 /* No active references but has cache value */
290#define VOBJBUF 0x00002000 /* Allocate buffers in VM object */
291#define VINACTIVE 0x00004000 /* The vnode is inactive (did VOP_INACTIVE) */
292#define VAGE 0x00008000 /* Insert vnode at head of free list */
293#define VOLOCK 0x00010000 /* vnode is locked waiting for an object */
294#define VOWANT 0x00020000 /* a process is waiting for VOLOCK */
295#define VRECLAIMED 0x00040000 /* This vnode has been destroyed */
296#define VFREE 0x00080000 /* This vnode is on the freelist */
c0885fab 297#define VNOTSEEKABLE 0x00100000 /* rd/wr ignores file offset */
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298#define VONWORKLST 0x00200000 /* On syncer work-list */
299#define VMOUNT 0x00400000 /* Mount in progress */
300#define VOBJDIRTY 0x00800000 /* object might be dirty */
984263bc 301
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302#define VMP_READ 0x01000000 /* supports MPSAFE read */
303#define VMP_WRITE 0x02000000 /* supports MPSAFE write */
304#define VMP_GETATTR 0x04000000 /* supports MPSAFE getattr */
305
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306/*
307 * vmntvnodescan() flags
308 */
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309#define VMSC_GETVP 0x01
310#define VMSC_GETVX 0x02
5fd012e0 311#define VMSC_NOWAIT 0x10
19b97e01 312#define VMSC_ONEPASS 0x20
5fd012e0 313
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314/*
315 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
316 * help with write clustering)
317 */
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318#define IO_UNIT 0x0001 /* do I/O as atomic unit */
319#define IO_APPEND 0x0002 /* append write to end */
320#define IO_SYNC 0x0004 /* do I/O synchronously */
321#define IO_NODELOCKED 0x0008 /* underlying node already locked */
322#define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
323#define IO_VMIO 0x0020 /* data already in VMIO space */
324#define IO_INVAL 0x0040 /* invalidate after I/O */
325#define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
597aea93 326#define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
cb63d1bc 327#define IO_RECURSE 0x0200 /* possibly device-recursive (vn) */
597aea93 328#define IO_CORE 0x0400 /* I/O is part of core dump */
984263bc 329
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330#define IO_SEQMAX 0x7F /* seq heuristic max value */
331#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
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332
333/*
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334 * Modes. Note that these V-modes must match file S_I*USR, SUID, SGID,
335 * and SVTX flag bits.
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336 */
337#define VSUID 04000 /* set user id on execution */
338#define VSGID 02000 /* set group id on execution */
339#define VSVTX 01000 /* save swapped text even after use */
340#define VREAD 00400 /* read, write, execute permissions */
341#define VWRITE 00200
342#define VEXEC 00100
343
344/*
345 * Token indicating no attribute value yet assigned.
346 */
347#define VNOVAL (-1)
348
349/*
350 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
351 */
597aea93 352#define VLKTIMEOUT (hz / 20 + 1)
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353
354#ifdef _KERNEL
355
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356/*
357 * Convert between vnode types and inode formats (since POSIX.1
358 * defines mode word of stat structure in terms of inode formats).
359 */
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360extern enum vtype iftovt_tab[];
361extern int vttoif_tab[];
362#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
363#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
364#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
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365
366/*
367 * Flags to various vnode functions.
368 */
369#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
370#define FORCECLOSE 0x0002 /* vflush: force file closure */
371#define WRITECLOSE 0x0004 /* vflush: only close writable files */
372#define DOCLOSE 0x0008 /* vclean: close active files */
373#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
984263bc 374
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375#ifdef DIAGNOSTIC
376#define VATTR_NULL(vap) vattr_null(vap)
377#else
378#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
379#endif /* DIAGNOSTIC */
380
381#define NULLVP ((struct vnode *)NULL)
382
383#define VNODEOP_SET(f) \
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384 SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_nadd_vnodeops_sysinit, &f); \
385 SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND,vfs_nrm_vnodeops_sysinit, &f);
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386
387/*
388 * Global vnode data.
389 */
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390struct objcache;
391
984263bc 392extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
28623bf9 393extern struct nchandle rootnch; /* root (i.e. "/") namecache */
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394extern int desiredvnodes; /* number of vnodes desired */
395extern time_t syncdelay; /* max time to delay syncing data */
396extern time_t filedelay; /* time to delay syncing files */
397extern time_t dirdelay; /* time to delay syncing directories */
398extern time_t metadelay; /* time to delay syncing metadata */
70aac194 399extern struct objcache *namei_oc;
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400extern int prtactive; /* nonzero to call vprint() */
401extern struct vattr va_null; /* predefined null vattr structure */
402extern int vfs_ioopt;
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403extern int numvnodes;
404extern int freevnodes;
fad57d0e 405extern int vfs_fastdev; /* fast specfs device access */
984263bc 406
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407/*
408 * Interlock for scanning list of vnodes attached to a mountpoint
409 */
8a8d5d85 410extern struct lwkt_token mntvnode_token;
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411
412/*
413 * This macro is very helpful in defining those offsets in the vdesc struct.
414 *
415 * This is stolen from X11R4. I ignored all the fancy stuff for
416 * Crays, so if you decide to port this to such a serious machine,
417 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
418 */
597aea93 419#define VOPARG_OFFSET(p_type,field) \
984263bc 420 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
597aea93 421#define VOPARG_OFFSETOF(s_type,field) \
984263bc 422 VOPARG_OFFSET(s_type*,field)
597aea93 423#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
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424 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
425
625ddaba 426typedef int (*vnodeopv_entry_t)(struct vop_generic_args *);
984263bc 427
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428/*
429 * VOCALL calls an op given an ops vector. We break it out because BSD's
430 * vclean changes the ops vector and then wants to call ops with the old
431 * vector.
432 */
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433
434typedef int (*vocall_func_t)(struct vop_generic_args *);
435
984263bc 436/*
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437 * This call executes the vops vector for the offset stored in the ap's
438 * descriptor of the passed vops rather then the one related to the
439 * ap's vop_ops structure. It is used to chain VOPS calls on behalf of
440 * filesystems from a VFS's context ONLY (that is, from a VFS's own vops
441 * vector function).
984263bc 442 */
0961aa92 443#define VOCALL(vops, ap) \
31bd717a 444 (*(vocall_func_t *)((char *)(vops)+((ap)->a_desc->sd_offset)))(ap)
0961aa92 445
597aea93 446#define VDESC(OP) (& __CONCAT(OP,_desc))
984263bc 447
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448/*
449 * Public vnode manipulation functions.
450 */
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451struct file;
452struct mount;
fad57d0e 453struct nlookupdata;
984263bc 454struct proc;
dadab5e9 455struct thread;
984263bc 456struct stat;
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457struct ucred;
458struct uio;
459struct vattr;
460struct vnode;
984263bc 461
a8873631 462struct vnode *getsynthvnode(const char *devname);
0e9b9130 463void addaliasu (struct vnode *vp, int x, int y);
b13267a5 464int v_associate_rdev(struct vnode *vp, cdev_t dev);
e4c9c0c8 465void v_release_rdev(struct vnode *vp);
b13267a5 466int bdevvp (cdev_t dev, struct vnode **vpp);
5fd012e0 467struct vnode *allocvnode(int lktimeout, int lkflags);
3c37c940 468int freesomevnodes(int count);
6ddb7618 469int getnewvnode (enum vtagtype tag, struct mount *mp,
3446c007 470 struct vnode **vpp, int timo, int lkflags);
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471int getspecialvnode (enum vtagtype tag, struct mount *mp,
472 struct vop_ops **ops, struct vnode **vpp, int timo,
473 int lkflags);
b153f746 474int speedup_syncer (void);
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475void vattr_null (struct vattr *vap);
476int vcount (struct vnode *vp);
b13267a5 477int vfinddev (cdev_t dev, enum vtype type, struct vnode **vpp);
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478void vfs_nadd_vnodeops_sysinit (void *);
479void vfs_nrm_vnodeops_sysinit (void *);
480void vfs_add_vnodeops(struct mount *, struct vop_ops *, struct vop_ops **);
481void vfs_rm_vnodeops(struct mount *, struct vop_ops *, struct vop_ops **);
b153f746 482int vflush (struct mount *mp, int rootrefs, int flags);
5fd012e0 483int vmntvnodescan(struct mount *mp, int flags,
41a01a4d 484 int (*fastfunc)(struct mount *mp, struct vnode *vp, void *data),
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485 int (*slowfunc)(struct mount *mp, struct vnode *vp, void *data),
486 void *data);
487void insmntque(struct vnode *vp, struct mount *mp);
41a01a4d 488
3c37c940 489void vclean_vxlocked (struct vnode *vp, int flags);
cf683bae 490void vclean_unlocked (struct vnode *vp);
3c37c940 491void vgone_vxlocked (struct vnode *vp);
6b008938 492void vupdatefsmid (struct vnode *vp);
b8477cda 493int vrevoke (struct vnode *vp, struct ucred *cred);
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494int vinvalbuf (struct vnode *vp, int save, int slpflag, int slptimeo);
495int vtruncbuf (struct vnode *vp, off_t length, int blksize);
4e0ecc94 496int vfsync(struct vnode *vp, int waitfor, int passes,
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497 int (*checkdef)(struct buf *),
498 int (*waitoutput)(struct vnode *, struct thread *));
1c843a13 499int vinitvmio(struct vnode *vp, off_t filesize);
b153f746 500void vprint (char *label, struct vnode *vp);
87de5057 501int vrecycle (struct vnode *vp);
2ec4b00d 502int vmaxiosize (struct vnode *vp);
81b5c339 503void vn_strategy(struct vnode *vp, struct bio *bio);
87de5057 504int vn_close (struct vnode *vp, int flags);
b153f746 505int vn_isdisk (struct vnode *vp, int *errp);
ca466bae 506int vn_lock (struct vnode *vp, int flags);
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507int vn_islocked (struct vnode *vp);
508void vn_unlock (struct vnode *vp);
984263bc 509#ifdef DEBUG_LOCKS
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510int debug_vn_lock (struct vnode *vp, int flags,
511 const char *filename, int line);
512#define vn_lock(vp,flags) debug_vn_lock(vp, flags, __FILE__, __LINE__)
984263bc 513#endif
b310dfc4 514
5d72d6ed 515int vn_get_namelen(struct vnode *, int *);
fad57d0e 516void vn_setspecops (struct file *fp);
b310dfc4 517int vn_fullpath (struct proc *p, struct vnode *vn, char **retbuf, char **freebuf);
fad57d0e 518int vn_open (struct nlookupdata *ndp, struct file *fp, int fmode, int cmode);
a8873631 519int vn_opendisk (const char *devname, int fmode, struct vnode **vpp);
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520void vn_pollevent (struct vnode *vp, int events);
521void vn_pollgone (struct vnode *vp);
87de5057 522int vn_pollrecord (struct vnode *vp, int events);
b153f746 523int vn_rdwr (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 524 int len, off_t offset, enum uio_seg segflg, int ioflg,
87de5057 525 struct ucred *cred, int *aresid);
b153f746 526int vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 527 int len, off_t offset, enum uio_seg segflg, int ioflg,
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528 struct ucred *cred, int *aresid);
529int vn_stat (struct vnode *vp, struct stat *sb, struct ucred *cred);
b13267a5 530cdev_t vn_todev (struct vnode *vp);
b153f746 531void vfs_timestamp (struct timespec *);
dad088a5 532size_t vfs_flagstostr(int flags, const struct mountctl_opt *optp, char *buf, size_t len, int *errorp);
349433c9 533void vn_mark_atime(struct vnode *vp, struct thread *td);
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534int vn_writechk (struct vnode *vp, struct nchandle *nch);
535int ncp_writechk(struct nchandle *nch);
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536int vop_stdopen (struct vop_open_args *ap);
537int vop_stdclose (struct vop_close_args *ap);
177403a9 538int vop_stdmountctl(struct vop_mountctl_args *ap);
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539int vop_stdgetpages(struct vop_getpages_args *ap);
540int vop_stdputpages(struct vop_putpages_args *ap);
349433c9 541int vop_stdmarkatime(struct vop_markatime_args *ap);
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542int vop_stdnoread(struct vop_read_args *ap);
543int vop_stdnowrite(struct vop_write_args *ap);
2d3e977e 544int vop_nopoll (struct vop_poll_args *ap);
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545int vop_stdpathconf (struct vop_pathconf_args *ap);
546int vop_stdpoll (struct vop_poll_args *ap);
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547int vop_eopnotsupp (struct vop_generic_args *ap);
548int vop_ebadf (struct vop_generic_args *ap);
549int vop_einval (struct vop_generic_args *ap);
550int vop_enotty (struct vop_generic_args *ap);
551int vop_defaultop (struct vop_generic_args *ap);
552int vop_null (struct vop_generic_args *ap);
553int vop_panic (struct vop_generic_args *ap);
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554int vop_write_dirent(int *, struct uio *, ino_t, uint8_t, uint16_t,
555 const char *);
b153f746 556
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557int vop_compat_nresolve(struct vop_nresolve_args *ap);
558int vop_compat_nlookupdotdot(struct vop_nlookupdotdot_args *ap);
559int vop_compat_ncreate(struct vop_ncreate_args *ap);
560int vop_compat_nmkdir(struct vop_nmkdir_args *ap);
561int vop_compat_nmknod(struct vop_nmknod_args *ap);
562int vop_compat_nlink(struct vop_nlink_args *ap);
563int vop_compat_nsymlink(struct vop_nsymlink_args *ap);
564int vop_compat_nwhiteout(struct vop_nwhiteout_args *ap);
565int vop_compat_nremove(struct vop_nremove_args *ap);
566int vop_compat_nrmdir(struct vop_nrmdir_args *ap);
567int vop_compat_nrename(struct vop_nrename_args *ap);
568
e3332475 569void vx_lock (struct vnode *vp);
5fd012e0 570void vx_unlock (struct vnode *vp);
e3332475 571void vx_get (struct vnode *vp);
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572int vx_get_nonblock (struct vnode *vp);
573void vx_put (struct vnode *vp);
87de5057 574int vget (struct vnode *vp, int lockflag);
597aea93 575void vput (struct vnode *vp);
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576void vhold (struct vnode *);
577void vdrop (struct vnode *);
b153f746 578void vref (struct vnode *vp);
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579void vrele (struct vnode *vp);
580void vsetflags (struct vnode *vp, int flags);
581void vclrflags (struct vnode *vp, int flags);
582
583void vfs_subr_init(void);
584void vfs_mount_init(void);
585void vfs_lock_init(void);
586void vfs_sync_init(void);
587
588void vn_syncer_add_to_worklist(struct vnode *, int);
589void vnlru_proc_wait(void);
590
66a1ddf5 591extern struct vop_ops default_vnode_vops;
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592extern struct vop_ops dead_vnode_vops;
593
594extern struct vop_ops *default_vnode_vops_p;
66a1ddf5 595extern struct vop_ops *dead_vnode_vops_p;
984263bc 596
03d6a592 597#endif /* _KERNEL */
984263bc 598
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599#endif /* _KERNEL || _KERNEL_STRUCTURES */
600#endif /* !_SYS_VNODE_H_ */