Add an installer-fetchpkgs target and other related stuff to reduce the
[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 $
2d3e977e 35 * $DragonFly: src/sys/sys/vnode.h,v 1.19 2004/08/13 17:51:10 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
2d3e977e 50#include <sys/vopops.h>
77a8676e 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
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83/*
84 * Reading or writing any of these items requires holding the appropriate lock.
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85 * v_freelist is locked by the global vnode_free_list token.
86 * v_mntvnodes is locked by the global mntvnodes token.
984263bc 87 * v_flag, v_usecount, v_holdcount and v_writecount are
8a8d5d85 88 * locked by the v_interlock token.
984263bc 89 * v_pollinfo is locked by the lock contained inside it.
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90 *
91 * XXX note: v_opencount currently only used by specfs. It should be used
92 * universally.
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93 */
94struct vnode {
95 u_long v_flag; /* vnode flags (see below) */
96 int v_usecount; /* reference count of users */
97 int v_writecount; /* reference count of writers */
98 int v_holdcnt; /* page & buffer references */
e4c9c0c8 99 int v_opencount; /* number of explicit opens */
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100 u_long v_id; /* capability identifier */
101 struct mount *v_mount; /* ptr to vfs we are in */
2d3e977e 102 struct vop_ops *v_vops;
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103 TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
104 TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */
105 struct buflists v_cleanblkhd; /* clean blocklist head */
106 struct buflists v_dirtyblkhd; /* dirty blocklist head */
107 LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
108 long v_numoutput; /* num of writes in progress */
109 enum vtype v_type; /* vnode type */
110 union {
111 struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
112 struct socket *vu_socket; /* unix ipc (VSOCK) */
113 struct {
e4c9c0c8 114 udev_t vu_udev; /* device number for attach */
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115 struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */
116 SLIST_ENTRY(vnode) vu_specnext;
117 } vu_spec;
118 struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
119 } v_un;
120 struct nqlease *v_lease; /* Soft reference to lease */
121 daddr_t v_lastw; /* last write (write cluster) */
122 daddr_t v_cstart; /* start block of cluster */
123 daddr_t v_lasta; /* last allocation */
124 int v_clen; /* length of current cluster */
125 struct vm_object *v_object; /* Place to store VM object */
41a01a4d 126 lwkt_token_t v_interlock; /* lock on usecount and flag */
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127 struct lock *v_vnlock; /* used for non-locking fs's */
128 enum vtagtype v_tag; /* type of underlying data */
597aea93 129 void *v_data; /* private data for fs */
7ea21ed1 130 struct namecache_list v_namecache; /* associated nc entries */
984263bc 131 struct {
8a8d5d85 132 struct lwkt_token vpi_token; /* lock to protect below */
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133 struct selinfo vpi_selinfo; /* identity of poller(s) */
134 short vpi_events; /* what they are looking for */
135 short vpi_revents; /* what has happened */
136 } v_pollinfo;
41a01a4d 137 struct thread *v_vxthread; /* thread owning VXLOCK */
29802dbb 138 struct vmresident *v_resident; /* optional vmresident */
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139#ifdef DEBUG_LOCKS
140 const char *filename; /* Source file doing locking */
141 int line; /* Line number doing locking */
142#endif
143};
144#define v_mountedhere v_un.vu_mountedhere
145#define v_socket v_un.vu_socket
e4c9c0c8 146#define v_udev v_un.vu_spec.vu_udev
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147#define v_rdev v_un.vu_spec.vu_specinfo
148#define v_specnext v_un.vu_spec.vu_specnext
149#define v_fifoinfo v_un.vu_fifoinfo
150
151#define VN_POLLEVENT(vp, events) \
152 do { \
153 if ((vp)->v_pollinfo.vpi_events & (events)) \
154 vn_pollevent((vp), (events)); \
155 } while (0)
156
157/*
158 * Vnode flags.
159 */
160#define VROOT 0x00001 /* root of its file system */
161#define VTEXT 0x00002 /* vnode is a pure text prototype */
162#define VSYSTEM 0x00004 /* vnode being used by kernel */
163#define VISTTY 0x00008 /* vnode represents a tty */
164#define VXLOCK 0x00100 /* vnode is locked to change underlying type */
165#define VXWANT 0x00200 /* process is waiting for vnode */
166#define VBWAIT 0x00400 /* waiting for output to complete */
167/* open for business 0x00800 */
168/* open for business 0x01000 */
169#define VOBJBUF 0x02000 /* Allocate buffers in VM object */
170/* open for business 0x04000 */
171#define VAGE 0x08000 /* Insert vnode at head of free list */
172#define VOLOCK 0x10000 /* vnode is locked waiting for an object */
173#define VOWANT 0x20000 /* a process is waiting for VOLOCK */
174#define VDOOMED 0x40000 /* This vnode is being recycled */
175#define VFREE 0x80000 /* This vnode is on the freelist */
41a01a4d 176#define VINFREE 0x100000 /* This vnode is in the midst of being freed */
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177#define VONWORKLST 0x200000 /* On syncer work-list */
178#define VMOUNT 0x400000 /* Mount in progress */
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179#define VOBJDIRTY 0x800000 /* object might be dirty */
180#define VPLACEMARKER 0x1000000 /* dummy vnode placemarker */
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181
182/*
183 * Vnode attributes. A field value of VNOVAL represents a field whose value
184 * is unavailable (getattr) or which is not to be changed (setattr).
185 */
186struct vattr {
187 enum vtype va_type; /* vnode type (for create) */
188 u_short va_mode; /* files access mode and type */
189 short va_nlink; /* number of references to file */
190 uid_t va_uid; /* owner user id */
191 gid_t va_gid; /* owner group id */
192 udev_t va_fsid; /* file system id */
193 long va_fileid; /* file id */
194 u_quad_t va_size; /* file size in bytes */
195 long va_blocksize; /* blocksize preferred for i/o */
196 struct timespec va_atime; /* time of last access */
197 struct timespec va_mtime; /* time of last modification */
198 struct timespec va_ctime; /* time file changed */
199 u_long va_gen; /* generation number of file */
200 u_long va_flags; /* flags defined for file */
201 udev_t va_rdev; /* device the special file represents */
202 u_quad_t va_bytes; /* bytes of disk space held by file */
203 u_quad_t va_filerev; /* file modification number */
204 u_int va_vaflags; /* operations flags, see below */
205 long va_spare; /* remain quad aligned */
206};
207
208/*
209 * Flags for va_vaflags.
210 */
211#define VA_UTIMES_NULL 0x01 /* utimes argument was NULL */
212#define VA_EXCLUSIVE 0x02 /* exclusive create request */
213
214/*
215 * Flags for ioflag. (high 16 bits used to ask for read-ahead and
216 * help with write clustering)
217 */
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218#define IO_UNIT 0x0001 /* do I/O as atomic unit */
219#define IO_APPEND 0x0002 /* append write to end */
220#define IO_SYNC 0x0004 /* do I/O synchronously */
221#define IO_NODELOCKED 0x0008 /* underlying node already locked */
222#define IO_NDELAY 0x0010 /* FNDELAY flag set in file table */
223#define IO_VMIO 0x0020 /* data already in VMIO space */
224#define IO_INVAL 0x0040 /* invalidate after I/O */
225#define IO_ASYNC 0x0080 /* bawrite rather then bdwrite */
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226#define IO_DIRECT 0x0100 /* attempt to bypass buffer cache */
227#define IO_NOWDRAIN 0x0200 /* do not block on wdrain */
228#define IO_CORE 0x0400 /* I/O is part of core dump */
984263bc 229
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230#define IO_SEQMAX 0x7F /* seq heuristic max value */
231#define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */
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232
233/*
234 * Modes. Some values same as Ixxx entries from inode.h for now.
235 */
236#define VSUID 04000 /* set user id on execution */
237#define VSGID 02000 /* set group id on execution */
238#define VSVTX 01000 /* save swapped text even after use */
239#define VREAD 00400 /* read, write, execute permissions */
240#define VWRITE 00200
241#define VEXEC 00100
242
243/*
244 * Token indicating no attribute value yet assigned.
245 */
246#define VNOVAL (-1)
247
248/*
249 * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
250 */
597aea93 251#define VLKTIMEOUT (hz / 20 + 1)
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252
253#ifdef _KERNEL
254
255#ifdef MALLOC_DECLARE
256MALLOC_DECLARE(M_VNODE);
257#endif
258
259/*
260 * Convert between vnode types and inode formats (since POSIX.1
261 * defines mode word of stat structure in terms of inode formats).
262 */
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263extern enum vtype iftovt_tab[];
264extern int vttoif_tab[];
265#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
266#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
267#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
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268
269/*
270 * Flags to various vnode functions.
271 */
272#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
273#define FORCECLOSE 0x0002 /* vflush: force file closure */
274#define WRITECLOSE 0x0004 /* vflush: only close writable files */
275#define DOCLOSE 0x0008 /* vclean: close active files */
276#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
277#define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */
278
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279#ifdef DIAGNOSTIC
280#define VATTR_NULL(vap) vattr_null(vap)
281#else
282#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
283#endif /* DIAGNOSTIC */
284
285#define NULLVP ((struct vnode *)NULL)
286
287#define VNODEOP_SET(f) \
288 C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops, &f); \
289 C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND, vfs_rm_vnodeops, &f);
290
291/*
292 * Global vnode data.
293 */
294extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
295extern int desiredvnodes; /* number of vnodes desired */
296extern time_t syncdelay; /* max time to delay syncing data */
297extern time_t filedelay; /* time to delay syncing files */
298extern time_t dirdelay; /* time to delay syncing directories */
299extern time_t metadelay; /* time to delay syncing metadata */
300extern struct vm_zone *namei_zone;
301extern int prtactive; /* nonzero to call vprint() */
302extern struct vattr va_null; /* predefined null vattr structure */
303extern int vfs_ioopt;
304
305/*
306 * Macro/function to check for client cache inconsistency w.r.t. leasing.
307 */
308#define LEASE_READ 0x1 /* Check lease for readers */
309#define LEASE_WRITE 0x2 /* Check lease for modifiers */
310
311
b153f746 312extern void (*lease_updatetime) (int deltat);
984263bc 313
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314#define VI_LOCK(vlock, vp) lwkt_gettoken(vlock, (vp)->v_interlock)
315#define VI_UNLOCK(vlock, vp) lwkt_reltoken(vlock)
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316
317#endif /* _KERNEL */
318
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319/*
320 * Mods for extensibility.
321 */
322
323/*
324 * Flags for vdesc_flags:
325 */
597aea93 326#define VDESC_MAX_VPS 16
984263bc 327/* Low order 16 flag bits are reserved for willrele flags for vp arguments. */
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328#define VDESC_VP0_WILLRELE 0x0001
329#define VDESC_VP1_WILLRELE 0x0002
330#define VDESC_VP2_WILLRELE 0x0004
331#define VDESC_VP3_WILLRELE 0x0008
332#define VDESC_NOMAP_VPP 0x0100
333#define VDESC_VPP_WILLRELE 0x0200
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334
335/*
336 * VDESC_NO_OFFSET is used to identify the end of the offset list
337 * and in places where no such field exists.
338 */
339#define VDESC_NO_OFFSET -1
340
341/*
342 * This structure describes the vnode operation taking place.
343 */
344struct vnodeop_desc {
345 int vdesc_offset; /* offset in vector--first for speed */
346 char *vdesc_name; /* a readable name for debugging */
347 int vdesc_flags; /* VDESC_* flags */
348
349 /*
350 * These ops are used by bypass routines to map and locate arguments.
351 * Creds and procs are not needed in bypass routines, but sometimes
352 * they are useful to (for example) transport layers.
353 * Nameidata is useful because it has a cred in it.
354 */
355 int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */
356 int vdesc_vpp_offset; /* return vpp location */
357 int vdesc_cred_offset; /* cred location, if any */
358 int vdesc_proc_offset; /* proc location, if any */
359 int vdesc_componentname_offset; /* if any */
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360};
361
362#ifdef _KERNEL
363/*
364 * A list of all the operation descs.
365 */
366extern struct vnodeop_desc *vnodeop_descs[];
367
368/*
369 * Interlock for scanning list of vnodes attached to a mountpoint
370 */
8a8d5d85 371extern struct lwkt_token mntvnode_token;
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372
373/*
374 * This macro is very helpful in defining those offsets in the vdesc struct.
375 *
376 * This is stolen from X11R4. I ignored all the fancy stuff for
377 * Crays, so if you decide to port this to such a serious machine,
378 * you might want to consult Intrinsic.h's XtOffset{,Of,To}.
379 */
597aea93 380#define VOPARG_OFFSET(p_type,field) \
984263bc 381 ((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
597aea93 382#define VOPARG_OFFSETOF(s_type,field) \
984263bc 383 VOPARG_OFFSET(s_type*,field)
597aea93 384#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
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385 ((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
386
387
388/*
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389 * This structure is used to configure the new vnodeops vector. The entry
390 * descriptor describes a patricular VOP function while the operations
391 * vector descriptor recursively describes arrays of entry descriptors.
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392 */
393struct vnodeopv_entry_desc {
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394 struct vnodeop_desc *opve_op;
395 int (*opve_func)(struct vop_generic_args *ap);
984263bc 396};
2d3e977e 397
984263bc 398struct vnodeopv_desc {
2d3e977e 399 struct vop_ops **opv_desc_vector; /* vect to allocate/fill*/
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400 struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
401};
402
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403struct vnodeopv_node {
404 TAILQ_ENTRY(vnodeopv_node) entry;
405 const struct vnodeopv_desc *vdesc;
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406};
407
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408#ifdef DEBUG_VFS_LOCKS
409/*
410 * Macros to aid in tracing VFS locking problems. Not totally
411 * reliable since if the process sleeps between changing the lock
412 * state and checking it with the assert, some other process could
413 * change the state. They are good enough for debugging a single
414 * filesystem using a single-threaded test. I find that 'cvs co src'
415 * is a pretty good test.
416 */
417
418/*
419 * [dfr] Kludge until I get around to fixing all the vfs locking.
420 */
421#define IS_LOCKING_VFS(vp) ((vp)->v_tag == VT_UFS \
422 || (vp)->v_tag == VT_MFS \
423 || (vp)->v_tag == VT_NFS \
424 || (vp)->v_tag == VT_LFS \
425 || (vp)->v_tag == VT_ISOFS \
426 || (vp)->v_tag == VT_MSDOSFS)
427
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428#define ASSERT_VOP_LOCKED(vp, str) assert_vop_locked(vp, str)
429#define ASSERT_VOP_UNLOCKED(vp, str) assert_vop_unlocked(vp, str);
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430
431#define ASSERT_VOP_ELOCKED(vp, str) \
432do { \
433 struct vnode *_vp = (vp); \
434 \
435 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 436 VOP_ISLOCKED(_vp, curthread) != LK_EXCLUSIVE) \
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437 panic("%s: %p is not exclusive locked but should be", \
438 str, _vp); \
439} while (0)
440
441#define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
442do { \
443 struct vnode *_vp = (vp); \
444 \
445 if (_vp && IS_LOCKING_VFS(_vp) && \
dadab5e9 446 VOP_ISLOCKED(_vp, curthread) != LK_EXCLOTHER) \
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447 panic("%s: %p is not exclusive locked by another proc", \
448 str, _vp); \
449} while (0)
450
451#define ASSERT_VOP_SLOCKED(vp, str) \
452do { \
453 struct vnode *_vp = (vp); \
454 \
455 if (_vp && IS_LOCKING_VFS(_vp) && \
456 VOP_ISLOCKED(_vp, NULL) != LK_SHARED) \
457 panic("%s: %p is not locked shared but should be", \
458 str, _vp); \
459} while (0)
460
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461void assert_vop_locked(struct vnode *vp, const char *str);
462void assert_vop_unlocked(struct vnode *vp, const char *str);
463
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464#else
465
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466#define ASSERT_VOP_LOCKED(vp, str)
467#define ASSERT_VOP_UNLOCKED(vp, str)
984263bc 468
4f322a84 469#endif /* DEBUG_VFS_LOCKS */
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470
471/*
472 * VOCALL calls an op given an ops vector. We break it out because BSD's
473 * vclean changes the ops vector and then wants to call ops with the old
474 * vector.
475 */
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476
477typedef int (*vocall_func_t)(struct vop_generic_args *);
478
479#define VOCALL(vops,off,ap) (*(vocall_func_t *)((char *)(vops)+(off)))(ap)
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480
481/*
482 * This call works for vnodes in the kernel.
483 */
2d3e977e 484#define VCALL(VP,OFF,AP) VOCALL((VP)->v_vops,(OFF),(AP))
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485#define VDESC(OP) (& __CONCAT(OP,_desc))
486#define VOFFSET(OP) (VDESC(OP)->vdesc_offset)
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487
488/*
489 * VMIO support inline
490 */
491
492extern int vmiodirenable;
493
494static __inline int
495vn_canvmio(struct vnode *vp)
496{
497 if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
498 return(TRUE);
499 return(FALSE);
500}
501
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502/*
503 * Public vnode manipulation functions.
504 */
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505struct file;
506struct mount;
507struct nameidata;
508struct ostat;
509struct proc;
dadab5e9 510struct thread;
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511struct stat;
512struct nstat;
513struct ucred;
514struct uio;
515struct vattr;
516struct vnode;
517struct vop_bwrite_args;
518
b153f746 519extern int (*lease_check_hook) (struct vop_lease_args *);
984263bc 520
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521void addaliasu (struct vnode *vp, udev_t nvp_udev);
522int v_associate_rdev(struct vnode *vp, dev_t dev);
523void v_release_rdev(struct vnode *vp);
b153f746 524int bdevvp (dev_t dev, struct vnode **vpp);
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525void cvtstat (struct stat *st, struct ostat *ost);
526void cvtnstat (struct stat *sb, struct nstat *nsb);
597aea93 527int getnewvnode (enum vtagtype tag,
2d3e977e 528 struct mount *mp, struct vop_ops *vops, struct vnode **vpp);
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529int lease_check (struct vop_lease_args *ap);
530int spec_vnoperate (struct vop_generic_args *);
531int speedup_syncer (void);
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532void vattr_null (struct vattr *vap);
533int vcount (struct vnode *vp);
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534void vdrop (struct vnode *);
535int vfinddev (dev_t dev, enum vtype type, struct vnode **vpp);
536void vfs_add_vnodeops (const void *);
537void vfs_rm_vnodeops (const void *);
538int vflush (struct mount *mp, int rootrefs, int flags);
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539int vmntvnodescan(struct mount *mp,
540 int (*fastfunc)(struct mount *mp, struct vnode *vp, void *data),
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541 int (*slowfunc)(struct mount *mp, struct vnode *vp, lwkt_tokref_t vlock,
542 void *data), void *data);
41a01a4d 543
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544int vget (struct vnode *vp, lwkt_tokref_t vlock, int lockflag, struct thread *td);
545void vgone (struct vnode *vp);
41a01a4d 546void vgonel (struct vnode *vp, lwkt_tokref_t vlock, struct thread *td);
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547void vhold (struct vnode *);
548int vinvalbuf (struct vnode *vp, int save,
549 struct thread *td, int slpflag, int slptimeo);
550int vtruncbuf (struct vnode *vp, struct thread *td,
551 off_t length, int blksize);
552void vprint (char *label, struct vnode *vp);
41a01a4d 553int vrecycle (struct vnode *vp, struct lwkt_tokref *inter_lkp,
b153f746 554 struct thread *td);
597aea93 555int vn_close (struct vnode *vp, int flags, struct thread *td);
b153f746 556int vn_isdisk (struct vnode *vp, int *errp);
41a01a4d 557int vn_lock (struct vnode *vp, lwkt_tokref_t vlock, int flags, struct thread *td);
984263bc 558#ifdef DEBUG_LOCKS
41a01a4d 559int debug_vn_lock (struct vnode *vp, lwkt_tokref_t vlock, int flags, struct thread *td,
b153f746 560 const char *filename, int line);
41a01a4d 561#define vn_lock(vp,vlock,flags,p) debug_vn_lock(vp,vlock,flags,p,__FILE__,__LINE__)
984263bc 562#endif
b310dfc4 563
b310dfc4 564int vn_fullpath (struct proc *p, struct vnode *vn, char **retbuf, char **freebuf);
597aea93 565int vn_open (struct nameidata *ndp, int fmode, int cmode);
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566void vn_pollevent (struct vnode *vp, int events);
567void vn_pollgone (struct vnode *vp);
568int vn_pollrecord (struct vnode *vp, struct thread *td, int events);
569int vn_rdwr (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 570 int len, off_t offset, enum uio_seg segflg, int ioflg,
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571 struct ucred *cred, int *aresid, struct thread *td);
572int vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
984263bc 573 int len, off_t offset, enum uio_seg segflg, int ioflg,
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574 struct ucred *cred, int *aresid, struct thread *td);
575int vn_stat (struct vnode *vp, struct stat *sb, struct thread *td);
576dev_t vn_todev (struct vnode *vp);
b153f746
RG
577int vfs_object_create (struct vnode *vp, struct thread *td);
578void vfs_timestamp (struct timespec *);
597aea93 579int vn_writechk (struct vnode *vp);
b153f746 580int vop_stdbwrite (struct vop_bwrite_args *ap);
2d3e977e
MD
581int vop_stdislocked (struct vop_islocked_args *ap);
582int vop_stdlock (struct vop_lock_args *ap);
583int vop_stdunlock (struct vop_unlock_args *ap);
584int vop_noislocked (struct vop_islocked_args *ap);
585int vop_nolock (struct vop_lock_args *ap);
586int vop_nopoll (struct vop_poll_args *ap);
587int vop_nounlock (struct vop_unlock_args *ap);
588int vop_stdpathconf (struct vop_pathconf_args *ap);
589int vop_stdpoll (struct vop_poll_args *ap);
590int vop_stdrevoke (struct vop_revoke_args *ap);
591int vop_sharedlock (struct vop_lock_args *ap);
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592int vop_eopnotsupp (struct vop_generic_args *ap);
593int vop_ebadf (struct vop_generic_args *ap);
594int vop_einval (struct vop_generic_args *ap);
595int vop_enotty (struct vop_generic_args *ap);
596int vop_defaultop (struct vop_generic_args *ap);
597int vop_null (struct vop_generic_args *ap);
598int vop_panic (struct vop_generic_args *ap);
599int vop_stdcreatevobject (struct vop_createvobject_args *ap);
600int vop_stddestroyvobject (struct vop_destroyvobject_args *ap);
601int vop_stdgetvobject (struct vop_getvobject_args *ap);
602
597aea93
DR
603void vput (struct vnode *vp);
604void vrele (struct vnode *vp);
b153f746 605void vref (struct vnode *vp);
984263bc 606
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MD
607extern struct vop_ops *default_vnode_vops;
608extern struct vop_ops *spec_vnode_vops;
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MD
609
610#endif /* _KERNEL */
611
612#endif /* !_SYS_VNODE_H_ */