Make pstat WARNS=6 clean.
[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 $
fad57d0e 35 * $DragonFly: src/sys/sys/vnode.h,v 1.26 2004/11/12 00:09:27 dillon Exp $
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36 */
37
38#ifndef _SYS_VNODE_H_
39#define _SYS_VNODE_H_
40
41#include <sys/queue.h>
42#include <sys/lock.h>
43#include <sys/select.h>
44#include <sys/uio.h>
45#include <sys/acl.h>
7ea21ed1 46#include <sys/namecache.h>
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47#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
48#include <sys/thread.h>
49#endif
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50#include <sys/vfsops.h>
51#include <sys/vfscache.h>
77a8676e 52
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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
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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
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68/*
69 * Reading or writing any of these items requires holding the appropriate lock.
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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 *
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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.
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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 */
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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 */
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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 */
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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 */
3446c007 119 struct lock v_lock; /* file/dir ops lock */
984263bc 120 enum vtagtype v_tag; /* type of underlying data */
597aea93 121 void *v_data; /* private data for fs */
7ea21ed1 122 struct namecache_list v_namecache; /* associated nc entries */
984263bc 123 struct {
8a8d5d85 124 struct lwkt_token vpi_token; /* lock to protect below */
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125 struct selinfo vpi_selinfo; /* identity of poller(s) */
126 short vpi_events; /* what they are looking for */
127 short vpi_revents; /* what has happened */
128 } v_pollinfo;
29802dbb 129 struct vmresident *v_resident; /* optional vmresident */
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130#ifdef DEBUG_LOCKS
131 const char *filename; /* Source file doing locking */
132 int line; /* Line number doing locking */
133#endif
5fd012e0 134 void *v_xaddr;
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135};
136#define v_mountedhere v_un.vu_mountedhere
137#define v_socket v_un.vu_socket
e4c9c0c8 138#define v_udev v_un.vu_spec.vu_udev
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139#define v_rdev v_un.vu_spec.vu_specinfo
140#define v_specnext v_un.vu_spec.vu_specnext
141#define v_fifoinfo v_un.vu_fifoinfo
142
143#define VN_POLLEVENT(vp, events) \
144 do { \
145 if ((vp)->v_pollinfo.vpi_events & (events)) \
146 vn_pollevent((vp), (events)); \
147 } while (0)
148
149/*
150 * Vnode flags.
151 */
152#define VROOT 0x00001 /* root of its file system */
153#define VTEXT 0x00002 /* vnode is a pure text prototype */
154#define VSYSTEM 0x00004 /* vnode being used by kernel */
155#define VISTTY 0x00008 /* vnode represents a tty */
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156#define VCTTYISOPEN 0x00010 /* controlling terminal tty is open */
157/* open for business 0x00020 */
158/* open for business 0x00040 */
159/* open for business 0x00080 */
160/* open for business 0x00100 */
161/* open for business 0x00200 */
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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 */
5fd012e0 166#define VINACTIVE 0x04000 /* The vnode is inactive */
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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 */
5fd012e0 170#define VRECLAIMED 0x40000 /* This vnode has been destroyed */
984263bc 171#define VFREE 0x80000 /* This vnode is on the freelist */
5fd012e0 172/* open for business 0x100000 */
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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 */
984263bc 177
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178/*
179 * vmntvnodescan() flags
180 */
181#define VMSC_GETVP 1
182#define VMSC_GETVX 2
183#define VMSC_REFVP 3
184#define VMSC_NOWAIT 0x10
185
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186/*
187 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
188 * help with write clustering)
189 */
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190#define IO_UNIT 0x0001 /* do I/O as atomic unit */
191#define IO_APPEND 0x0002 /* append write to end */
192#define IO_SYNC 0x0004 /* do I/O synchronously */
193#define IO_NODELOCKED 0x0008 /* underlying node already locked */
194#define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
195#define IO_VMIO 0x0020 /* data already in VMIO space */
196#define IO_INVAL 0x0040 /* invalidate after I/O */
197#define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
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198#define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
199#define IO_NOWDRAIN 0x0200 /* do not block on wdrain */
200#define IO_CORE 0x0400 /* I/O is part of core dump */
984263bc 201
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202#define IO_SEQMAX 0x7F /* seq heuristic max value */
203#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
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204
205/*
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206 * Modes. Note that these V-modes must match file S_I*USR, SUID, SGID,
207 * and SVTX flag bits.
208 *
209 * VCREATE, VDELETE, and VEXCL may only be used in naccess() calls.
984263bc 210 */
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211#define VDELETE 040000 /* delete if the file/dir exists */
212#define VCREATE 020000 /* create if the file/dir does not exist */
213#define VEXCL 010000 /* error if the file/dir already exists */
214
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215#define VSUID 04000 /* set user id on execution */
216#define VSGID 02000 /* set group id on execution */
217#define VSVTX 01000 /* save swapped text even after use */
218#define VREAD 00400 /* read, write, execute permissions */
219#define VWRITE 00200
220#define VEXEC 00100
221
222/*
223 * Token indicating no attribute value yet assigned.
224 */
225#define VNOVAL (-1)
226
227/*
228 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
229 */
597aea93 230#define VLKTIMEOUT (hz / 20 + 1)
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231
232#ifdef _KERNEL
233
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234/*
235 * Convert between vnode types and inode formats (since POSIX.1
236 * defines mode word of stat structure in terms of inode formats).
237 */
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238extern enum vtype iftovt_tab[];
239extern int vttoif_tab[];
240#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
241#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
242#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
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243
244/*
245 * Flags to various vnode functions.
246 */
247#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
248#define FORCECLOSE 0x0002 /* vflush: force file closure */
249#define WRITECLOSE 0x0004 /* vflush: only close writable files */
250#define DOCLOSE 0x0008 /* vclean: close active files */
251#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
252#define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */
253
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254#ifdef DIAGNOSTIC
255#define VATTR_NULL(vap) vattr_null(vap)
256#else
257#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
258#endif /* DIAGNOSTIC */
259
260#define NULLVP ((struct vnode *)NULL)
261
262#define VNODEOP_SET(f) \
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263 C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops_sysinit, &f); \
264 C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND,vfs_rm_vnodeops_sysinit, &f);
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265
266/*
267 * Global vnode data.
268 */
269extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
21739618 270extern struct namecache *rootncp; /* root (i.e. "/") namecache */
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271extern int desiredvnodes; /* number of vnodes desired */
272extern time_t syncdelay; /* max time to delay syncing data */
273extern time_t filedelay; /* time to delay syncing files */
274extern time_t dirdelay; /* time to delay syncing directories */
275extern time_t metadelay; /* time to delay syncing metadata */
276extern struct vm_zone *namei_zone;
277extern int prtactive; /* nonzero to call vprint() */
278extern struct vattr va_null; /* predefined null vattr structure */
279extern int vfs_ioopt;
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280extern int numvnodes;
281extern int freevnodes;
fad57d0e 282extern int vfs_fastdev; /* fast specfs device access */
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283
284/*
285 * Macro/function to check for client cache inconsistency w.r.t. leasing.
286 */
287#define LEASE_READ 0x1 /* Check lease for readers */
288#define LEASE_WRITE 0x2 /* Check lease for modifiers */
289
290
b153f746 291extern void (*lease_updatetime) (int deltat);
984263bc 292
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293#endif /* _KERNEL */
294
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295/*
296 * Mods for extensibility.
297 */
298
299/*
300 * Flags for vdesc_flags:
301 */
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302#define VDESC_MAX_VPS 8
303/* Low order 8 flag bits are reserved for willrele flags for vp arguments. */
304#define VDESC_VP0_WILLRELE 0x00000001
305#define VDESC_VP1_WILLRELE 0x00000002
306#define VDESC_VP2_WILLRELE 0x00000004
307#define VDESC_VP3_WILLRELE 0x00000008
308#define VDESC_VP4_WILLRELE 0x00000010
309#define VDESC_VP5_WILLRELE 0x00000020
310#define VDESC_VP6_WILLRELE 0x00000040
311#define VDESC_VP7_WILLRELE 0x00000080
312#define VDESC_NOMAP_VPP 0x00000100
313#define VDESC_VPP_WILLRELE 0x00000200
314#define VDESC_VP0_WILLUNLOCK 0x00010000
315#define VDESC_VP1_WILLUNLOCK 0x00020000
316#define VDESC_VP2_WILLUNLOCK 0x00040000
317#define VDESC_VP3_WILLUNLOCK 0x00080000
318#define VDESC_VP4_WILLUNLOCK 0x00100000
319#define VDESC_VP5_WILLUNLOCK 0x00200000
320#define VDESC_VP6_WILLUNLOCK 0x00400000
321#define VDESC_VP7_WILLUNLOCK 0x00800000
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322
323/*
324 * VDESC_NO_OFFSET is used to identify the end of the offset list
325 * and in places where no such field exists.
326 */
327#define VDESC_NO_OFFSET -1
328
329/*
330 * This structure describes the vnode operation taking place.
331 */
332struct vnodeop_desc {
333 int vdesc_offset; /* offset in vector--first for speed */
334 char *vdesc_name; /* a readable name for debugging */
335 int vdesc_flags; /* VDESC_* flags */
336
337 /*
338 * These ops are used by bypass routines to map and locate arguments.
339 * Creds and procs are not needed in bypass routines, but sometimes
340 * they are useful to (for example) transport layers.
341 * Nameidata is useful because it has a cred in it.
342 */
343 int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */
344 int vdesc_vpp_offset; /* return vpp location */
345 int vdesc_cred_offset; /* cred location, if any */
346 int vdesc_proc_offset; /* proc location, if any */
347 int vdesc_componentname_offset; /* if any */
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348};
349
350#ifdef _KERNEL
351/*
352 * A list of all the operation descs.
353 */
354extern struct vnodeop_desc *vnodeop_descs[];
355
356/*
357 * Interlock for scanning list of vnodes attached to a mountpoint
358 */
8a8d5d85 359extern struct lwkt_token mntvnode_token;
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360
361/*
362 * This macro is very helpful in defining those offsets in the vdesc struct.
363 *
364 * This is stolen from X11R4. I ignored all the fancy stuff for
365 * Crays, so if you decide to port this to such a serious machine,
366 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
367 */
597aea93 368#define VOPARG_OFFSET(p_type,field) \
984263bc 369 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
597aea93 370#define VOPARG_OFFSETOF(s_type,field) \
984263bc 371 VOPARG_OFFSET(s_type*,field)
597aea93 372#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
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373 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
374
375
376/*
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377 * This structure is used to configure the new vnodeops vector. The entry
378 * descriptor describes a patricular VOP function while the operations
379 * vector descriptor recursively describes arrays of entry descriptors.
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380 */
381struct vnodeopv_entry_desc {
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382 struct vnodeop_desc *opve_op;
383 int (*opve_func)(struct vop_generic_args *ap);
984263bc 384};
2d3e977e 385
984263bc 386struct vnodeopv_desc {
2d3e977e 387 struct vop_ops **opv_desc_vector; /* vect to allocate/fill*/
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388 struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
389};
390
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391struct vnodeopv_node {
392 TAILQ_ENTRY(vnodeopv_node) entry;
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393 struct vop_ops *ops; /* allocated vector */
394 struct vnodeopv_entry_desc *descs; /* null terminated list */
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395};
396
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397#ifdef DEBUG_VFS_LOCKS
398/*
399 * Macros to aid in tracing VFS locking problems. Not totally
400 * reliable since if the process sleeps between changing the lock
401 * state and checking it with the assert, some other process could
402 * change the state. They are good enough for debugging a single
403 * filesystem using a single-threaded test. I find that 'cvs co src'
404 * is a pretty good test.
405 */
406
407/*
408 * [dfr] Kludge until I get around to fixing all the vfs locking.
409 */
410#define IS_LOCKING_VFS(vp) ((vp)->v_tag == VT_UFS \
411 || (vp)->v_tag == VT_MFS \
412 || (vp)->v_tag == VT_NFS \
413 || (vp)->v_tag == VT_LFS \
414 || (vp)->v_tag == VT_ISOFS \
415 || (vp)->v_tag == VT_MSDOSFS)
416
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417#define ASSERT_VOP_LOCKED(vp, str) assert_vop_locked(vp, str)
418#define ASSERT_VOP_UNLOCKED(vp, str) assert_vop_unlocked(vp, str);
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419
420#define ASSERT_VOP_ELOCKED(vp, str) \
421do { \
422 struct vnode *_vp = (vp); \
423 \
424 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 425 VOP_ISLOCKED(_vp, curthread) != LK_EXCLUSIVE) \
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426 panic("%s: %p is not exclusive locked but should be", \
427 str, _vp); \
428} while (0)
429
430#define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
431do { \
432 struct vnode *_vp = (vp); \
433 \
434 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 435 VOP_ISLOCKED(_vp, curthread) != LK_EXCLOTHER) \
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436 panic("%s: %p is not exclusive locked by another proc", \
437 str, _vp); \
438} while (0)
439
440#define ASSERT_VOP_SLOCKED(vp, str) \
441do { \
442 struct vnode *_vp = (vp); \
443 \
444 if (_vp && IS_LOCKING_VFS(_vp) && \
445 VOP_ISLOCKED(_vp, NULL) != LK_SHARED) \
446 panic("%s: %p is not locked shared but should be", \
447 str, _vp); \
448} while (0)
449
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450void assert_vop_locked(struct vnode *vp, const char *str);
451void assert_vop_unlocked(struct vnode *vp, const char *str);
452
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453#else
454
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455#define ASSERT_VOP_LOCKED(vp, str)
456#define ASSERT_VOP_UNLOCKED(vp, str)
984263bc 457
4f322a84 458#endif /* DEBUG_VFS_LOCKS */
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459
460/*
461 * VOCALL calls an op given an ops vector. We break it out because BSD's
462 * vclean changes the ops vector and then wants to call ops with the old
463 * vector.
464 */
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465
466typedef int (*vocall_func_t)(struct vop_generic_args *);
467
984263bc 468/*
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469 * This call executes the vops vector for the offset stored in the ap's
470 * descriptor of the passed vops rather then the one related to the
471 * ap's vop_ops structure. It is used to chain VOPS calls on behalf of
472 * filesystems from a VFS's context ONLY (that is, from a VFS's own vops
473 * vector function).
984263bc 474 */
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475#define VOCALL(vops, ap) \
476 (*(vocall_func_t *)((char *)(vops)+((ap)->a_desc->vdesc_offset)))(ap)
477
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478#define VDESC(OP) (& __CONCAT(OP,_desc))
479#define VOFFSET(OP) (VDESC(OP)->vdesc_offset)
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480
481/*
482 * VMIO support inline
483 */
484
485extern int vmiodirenable;
486
487static __inline int
488vn_canvmio(struct vnode *vp)
489{
490 if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
491 return(TRUE);
492 return(FALSE);
493}
494
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495/*
496 * Public vnode manipulation functions.
497 */
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498struct file;
499struct mount;
fad57d0e 500struct nlookupdata;
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501struct ostat;
502struct proc;
dadab5e9 503struct thread;
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504struct stat;
505struct nstat;
506struct ucred;
507struct uio;
508struct vattr;
509struct vnode;
510struct vop_bwrite_args;
511
b153f746 512extern int (*lease_check_hook) (struct vop_lease_args *);
984263bc 513
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514void addaliasu (struct vnode *vp, udev_t nvp_udev);
515int v_associate_rdev(struct vnode *vp, dev_t dev);
516void v_release_rdev(struct vnode *vp);
b153f746 517int bdevvp (dev_t dev, struct vnode **vpp);
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518void cvtstat (struct stat *st, struct ostat *ost);
519void cvtnstat (struct stat *sb, struct nstat *nsb);
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520struct vnode *allocvnode(int lktimeout, int lkflags);
521struct vnode *allocvnode_placemarker(void);
522void freevnode_placemarker(struct vnode *);
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523int getnewvnode (enum vtagtype tag, struct mount *mp, struct vop_ops *ops,
524 struct vnode **vpp, int timo, int lkflags);
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525int lease_check (struct vop_lease_args *ap);
526int spec_vnoperate (struct vop_generic_args *);
527int speedup_syncer (void);
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528void vattr_null (struct vattr *vap);
529int vcount (struct vnode *vp);
b153f746 530int vfinddev (dev_t dev, enum vtype type, struct vnode **vpp);
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531void vfs_add_vnodeops_sysinit (const void *);
532void vfs_rm_vnodeops_sysinit (const void *);
533void vfs_add_vnodeops(struct vop_ops **, struct vnodeopv_entry_desc *);
534void vfs_rm_vnodeops(struct vop_ops **);
b153f746 535int vflush (struct mount *mp, int rootrefs, int flags);
5fd012e0 536int vmntvnodescan(struct mount *mp, int flags,
41a01a4d 537 int (*fastfunc)(struct mount *mp, struct vnode *vp, void *data),
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538 int (*slowfunc)(struct mount *mp, struct vnode *vp, void *data),
539 void *data);
540void insmntque(struct vnode *vp, struct mount *mp);
41a01a4d 541
5fd012e0 542void vclean (struct vnode *vp, int flags, struct thread *td);
597aea93 543void vgone (struct vnode *vp);
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544int vinvalbuf (struct vnode *vp, int save,
545 struct thread *td, int slpflag, int slptimeo);
546int vtruncbuf (struct vnode *vp, struct thread *td,
547 off_t length, int blksize);
548void vprint (char *label, struct vnode *vp);
5fd012e0 549int vrecycle (struct vnode *vp, struct thread *td);
597aea93 550int vn_close (struct vnode *vp, int flags, struct thread *td);
b153f746 551int vn_isdisk (struct vnode *vp, int *errp);
5fd012e0 552int vn_lock (struct vnode *vp, int flags, struct thread *td);
984263bc 553#ifdef DEBUG_LOCKS
5fd012e0 554int debug_vn_lock (struct vnode *vp, int flags, struct thread *td,
b153f746 555 const char *filename, int line);
5fd012e0 556#define vn_lock(vp,flags,p) debug_vn_lock(vp,flags,p,__FILE__,__LINE__)
984263bc 557#endif
b310dfc4 558
fad57d0e 559void vn_setspecops (struct file *fp);
b310dfc4 560int vn_fullpath (struct proc *p, struct vnode *vn, char **retbuf, char **freebuf);
fad57d0e 561int vn_open (struct nlookupdata *ndp, struct file *fp, int fmode, int cmode);
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562void vn_pollevent (struct vnode *vp, int events);
563void vn_pollgone (struct vnode *vp);
564int vn_pollrecord (struct vnode *vp, struct thread *td, int events);
565int vn_rdwr (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 566 int len, off_t offset, enum uio_seg segflg, int ioflg,
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567 struct ucred *cred, int *aresid, struct thread *td);
568int vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 569 int len, off_t offset, enum uio_seg segflg, int ioflg,
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570 struct ucred *cred, int *aresid, struct thread *td);
571int vn_stat (struct vnode *vp, struct stat *sb, struct thread *td);
572dev_t vn_todev (struct vnode *vp);
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573int vfs_object_create (struct vnode *vp, struct thread *td);
574void vfs_timestamp (struct timespec *);
597aea93 575int vn_writechk (struct vnode *vp);
b153f746 576int vop_stdbwrite (struct vop_bwrite_args *ap);
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577int vop_stdislocked (struct vop_islocked_args *ap);
578int vop_stdlock (struct vop_lock_args *ap);
3446c007 579int vop_stdrlock (struct vop_lock_args *ap);
2d3e977e 580int vop_stdunlock (struct vop_unlock_args *ap);
2d3e977e 581int vop_nopoll (struct vop_poll_args *ap);
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582int vop_stdpathconf (struct vop_pathconf_args *ap);
583int vop_stdpoll (struct vop_poll_args *ap);
584int vop_stdrevoke (struct vop_revoke_args *ap);
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585int vop_eopnotsupp (struct vop_generic_args *ap);
586int vop_ebadf (struct vop_generic_args *ap);
587int vop_einval (struct vop_generic_args *ap);
588int vop_enotty (struct vop_generic_args *ap);
589int vop_defaultop (struct vop_generic_args *ap);
590int vop_null (struct vop_generic_args *ap);
591int vop_panic (struct vop_generic_args *ap);
592int vop_stdcreatevobject (struct vop_createvobject_args *ap);
593int vop_stddestroyvobject (struct vop_destroyvobject_args *ap);
594int vop_stdgetvobject (struct vop_getvobject_args *ap);
595
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596int vop_compat_nresolve(struct vop_nresolve_args *ap);
597int vop_compat_nlookupdotdot(struct vop_nlookupdotdot_args *ap);
598int vop_compat_ncreate(struct vop_ncreate_args *ap);
599int vop_compat_nmkdir(struct vop_nmkdir_args *ap);
600int vop_compat_nmknod(struct vop_nmknod_args *ap);
601int vop_compat_nlink(struct vop_nlink_args *ap);
602int vop_compat_nsymlink(struct vop_nsymlink_args *ap);
603int vop_compat_nwhiteout(struct vop_nwhiteout_args *ap);
604int vop_compat_nremove(struct vop_nremove_args *ap);
605int vop_compat_nrmdir(struct vop_nrmdir_args *ap);
606int vop_compat_nrename(struct vop_nrename_args *ap);
607
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608int vx_lock (struct vnode *vp);
609void vx_unlock (struct vnode *vp);
610int vx_get (struct vnode *vp);
611int vx_get_nonblock (struct vnode *vp);
612void vx_put (struct vnode *vp);
613int vget (struct vnode *vp, int lockflag, struct thread *td);
597aea93 614void vput (struct vnode *vp);
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615void vhold (struct vnode *);
616void vdrop (struct vnode *);
b153f746 617void vref (struct vnode *vp);
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618void vrele (struct vnode *vp);
619void vsetflags (struct vnode *vp, int flags);
620void vclrflags (struct vnode *vp, int flags);
621
622void vfs_subr_init(void);
623void vfs_mount_init(void);
624void vfs_lock_init(void);
625void vfs_sync_init(void);
626
627void vn_syncer_add_to_worklist(struct vnode *, int);
628void vnlru_proc_wait(void);
629
984263bc 630
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631extern struct vop_ops *default_vnode_vops;
632extern struct vop_ops *spec_vnode_vops;
0961aa92 633extern struct vop_ops *dead_vnode_vops;
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634
635#endif /* _KERNEL */
636
637#endif /* !_SYS_VNODE_H_ */