2005-01-07 01:45:51 +00:00
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/*-
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1997-02-10 02:22:35 +00:00
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* Copyright (c) 1989, 1993, 1995
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1994-05-24 10:09:53 +00:00
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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1997-02-10 02:22:35 +00:00
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* @(#)nfs.h 8.4 (Berkeley) 5/1/95
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1999-08-28 01:08:13 +00:00
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* $FreeBSD$
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1994-05-24 10:09:53 +00:00
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*/
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2001-09-18 23:32:09 +00:00
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#ifndef _NFSCLIENT_NFS_H_
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#define _NFSCLIENT_NFS_H_
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1994-08-21 06:50:16 +00:00
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1999-12-29 05:07:58 +00:00
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#ifdef _KERNEL
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1998-06-30 03:01:37 +00:00
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#include "opt_nfs.h"
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1998-06-30 11:19:22 +00:00
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#endif
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1998-06-30 03:01:37 +00:00
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2001-09-18 23:32:09 +00:00
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#include <nfsclient/nfsargs.h>
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1994-05-24 10:09:53 +00:00
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/*
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* Tunable constants for nfs
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*/
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2004-03-14 06:21:56 +00:00
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#define NFS_TICKINTVL 10 /* Desired time for a tick (msec) */
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1995-06-27 11:07:30 +00:00
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#define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
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#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
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#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
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#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
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#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
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1994-05-24 10:09:53 +00:00
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#define NFS_MAXREXMIT 100 /* Stop counting after this many */
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#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
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#define NFS_MAXGRPS 16 /* Max. size of groups list */
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1994-08-04 06:03:46 +00:00
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#ifndef NFS_MINATTRTIMO
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1998-05-19 07:11:27 +00:00
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#define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */
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1994-08-04 06:03:46 +00:00
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#endif
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#ifndef NFS_MAXATTRTIMO
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1994-05-24 10:09:53 +00:00
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#define NFS_MAXATTRTIMO 60
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1994-08-04 06:03:46 +00:00
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#endif
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1998-05-19 07:11:27 +00:00
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#ifndef NFS_MINDIRATTRTIMO
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#define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */
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#endif
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#ifndef NFS_MAXDIRATTRTIMO
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#define NFS_MAXDIRATTRTIMO 60
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#endif
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1994-05-24 10:09:53 +00:00
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#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
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#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
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1995-06-27 11:07:30 +00:00
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#define NFS_READDIRSIZE 8192 /* Def. readdir size */
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1994-05-24 10:09:53 +00:00
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#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
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#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
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2002-01-15 20:57:21 +00:00
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#define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */
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1995-06-27 11:07:30 +00:00
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#define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
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1999-12-29 05:07:58 +00:00
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#ifdef _KERNEL
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1997-03-29 12:34:33 +00:00
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#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
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#endif
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2001-09-18 23:32:09 +00:00
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#define NFS_MAXDEADTHRESH 9 /* How long till we say 'server not responding' */
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1995-06-27 11:07:30 +00:00
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/*
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* Oddballs
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*/
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#define NFS_CMPFH(n, f, s) \
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((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
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#define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
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1998-05-19 07:11:27 +00:00
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#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
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#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
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#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
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#define NFSSTA_WANTSND 0x02000000 /* Want above */
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2004-07-06 09:12:03 +00:00
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#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
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1994-05-24 10:09:53 +00:00
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1997-02-10 02:22:35 +00:00
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/*
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* XXX to allow amd to include nfs.h without nfsproto.h
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*/
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#ifdef NFS_NPROCS
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2001-09-18 23:32:09 +00:00
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#include <nfsclient/nfsstats.h>
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1997-02-10 02:22:35 +00:00
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#endif
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1994-05-24 10:09:53 +00:00
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1994-10-23 23:26:18 +00:00
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/*
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2001-09-18 23:32:09 +00:00
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* vfs.nfs sysctl(3) identifiers
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1994-10-23 23:26:18 +00:00
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*/
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#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
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2003-11-15 05:03:15 +00:00
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/*
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* File context information for nfsv4. Currently, there is only one
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* lockowner for the whole machine "0."
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*/
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struct nfs4_fctx {
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TAILQ_ENTRY(nfs4_fstate) next;
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uint32_t refcnt;
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struct nfs4_lowner *lop;
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struct nfsnode *np;
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char stateid[NFSX_V4STATEID];
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};
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1999-12-29 05:07:58 +00:00
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#ifdef _KERNEL
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1994-11-02 00:11:00 +00:00
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1997-10-12 20:26:33 +00:00
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#ifdef MALLOC_DECLARE
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MALLOC_DECLARE(M_NFSREQ);
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MALLOC_DECLARE(M_NFSDIROFF);
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MALLOC_DECLARE(M_NFSBIGFH);
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1998-05-24 14:41:56 +00:00
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MALLOC_DECLARE(M_NFSHASH);
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2004-12-15 22:20:22 +00:00
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MALLOC_DECLARE(M_NFSDIRECTIO);
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1998-05-24 14:41:56 +00:00
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#endif
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2002-09-05 14:04:34 +00:00
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extern struct uma_zone *nfsmount_zone;
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1997-10-12 20:26:33 +00:00
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2004-03-25 21:48:09 +00:00
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extern struct callout nfs_callout;
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2001-09-18 23:32:09 +00:00
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extern struct nfsstats nfsstats;
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2006-05-19 00:04:24 +00:00
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extern struct mtx nfs_iod_mtx;
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1998-09-07 05:42:15 +00:00
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2001-09-18 23:32:09 +00:00
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extern int nfs_numasync;
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2004-04-11 13:30:20 +00:00
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extern unsigned int nfs_iodmax;
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2001-09-18 23:32:09 +00:00
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extern int nfs_pbuf_freecnt;
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extern int nfs_ticks;
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/* Data constants in XDR form */
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extern u_int32_t nfs_true, nfs_false, nfs_xdrneg1;
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extern u_int32_t rpc_reply, rpc_msgdenied, rpc_mismatch, rpc_vers;
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extern u_int32_t rpc_auth_unix, rpc_msgaccepted, rpc_call, rpc_autherr;
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extern int nfsv3_procid[NFS_NPROCS];
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struct uio;
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struct buf;
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struct vattr;
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struct nameidata;
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1994-11-02 00:11:00 +00:00
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1994-05-24 10:09:53 +00:00
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/*
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* Socket errors ignored for connectionless sockets??
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* For now, ignore them all
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*/
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#define NFSIGNORE_SOERROR(s, e) \
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2004-07-06 09:12:03 +00:00
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((e) != EINTR && (e) != EIO && \
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(e) != ERESTART && (e) != EWOULDBLOCK && \
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1994-05-24 10:09:53 +00:00
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((s) & PR_CONNREQUIRED) == 0)
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/*
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* Nfs outstanding request list element
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*/
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struct nfsreq {
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2000-05-26 02:09:24 +00:00
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TAILQ_ENTRY(nfsreq) r_chain;
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1994-05-24 10:09:53 +00:00
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struct mbuf *r_mreq;
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struct mbuf *r_mrep;
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struct mbuf *r_md;
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caddr_t r_dpos;
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struct nfsmount *r_nmp;
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struct vnode *r_vp;
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1998-05-31 20:09:01 +00:00
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u_int32_t r_xid;
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1994-05-24 10:09:53 +00:00
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int r_flags; /* flags on request, see below */
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int r_retry; /* max retransmission count */
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int r_rexmit; /* current retrans count */
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int r_timer; /* tick counter on reply */
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1997-06-03 17:22:47 +00:00
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u_int32_t r_procnum; /* NFS procedure number */
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1994-05-24 10:09:53 +00:00
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int r_rtt; /* RTT for rpc */
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2004-07-06 09:12:03 +00:00
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int r_lastmsg; /* last tprintf */
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2001-09-15 04:41:56 +00:00
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struct thread *r_td; /* Proc that did I/O system call */
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2006-05-19 00:04:24 +00:00
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struct mtx r_mtx; /* Protects nfsreq fields */
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1994-05-24 10:09:53 +00:00
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};
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1994-10-17 17:47:45 +00:00
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/*
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* Queue head for nfsreq's
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*/
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2000-05-26 02:09:24 +00:00
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extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
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1994-10-17 17:47:45 +00:00
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1994-05-24 10:09:53 +00:00
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/* Flag values for r_flags */
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#define R_TIMING 0x01 /* timing request (in mntp) */
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#define R_SENT 0x02 /* request has been sent */
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#define R_SOFTTERM 0x04 /* soft mnt, too many retries */
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2004-07-06 09:12:03 +00:00
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#define R_RESENDERR 0x08 /* Resend failed */
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1994-05-24 10:09:53 +00:00
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#define R_SOCKERR 0x10 /* Fatal error on socket */
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#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
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#define R_MUSTRESEND 0x40 /* Must resend request */
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#define R_GETONEREP 0x80 /* Probe for one reply only */
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2005-07-19 21:27:25 +00:00
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#define R_REXMIT_INPROG 0x100 /* Re-transmit in progress */
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1994-05-24 10:09:53 +00:00
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2003-11-22 02:21:49 +00:00
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/*
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* Pointers to ops that differ from v3 to v4
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*/
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struct nfs_rpcops {
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int (*nr_readrpc)(struct vnode *vp, struct uio *uiop, struct ucred *cred);
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int (*nr_writerpc)(struct vnode *vp, struct uio *uiop, struct ucred *cred,
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int *iomode, int *must_commit);
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int (*nr_writebp)(struct buf *bp, int force, struct thread *td);
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int (*nr_readlinkrpc)(struct vnode *vp, struct uio *uiop, struct ucred *cred);
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void (*nr_invaldir)(struct vnode *vp);
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int (*nr_commit)(struct vnode *vp, u_quad_t offset, int cnt,
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struct ucred *cred, struct thread *td);
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};
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1997-07-16 09:06:30 +00:00
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/*
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* Defines for WebNFS
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*/
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#define WEBNFS_ESC_CHAR '%'
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#define WEBNFS_SPECCHAR_START 0x80
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#define WEBNFS_NATIVE_CHAR 0x80
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/*
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* ..
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* Possibly more here in the future.
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*/
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/*
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* Macro for converting escape characters in WebNFS pathnames.
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* Should really be in libkern.
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*/
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#define HEXTOC(c) \
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((c) >= 'a' ? ((c) - ('a' - 10)) : \
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((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
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#define HEXSTRTOI(p) \
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((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
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2004-07-06 09:12:03 +00:00
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/* nfs_sigintr() helper, when 'rep' has all we need */
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#define NFS_SIGREP(rep) nfs_sigintr((rep)->r_nmp, (rep), (rep)->r_td)
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1997-05-10 16:12:03 +00:00
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#ifdef NFS_DEBUG
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extern int nfs_debug;
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#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
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#define NFS_DEBUG_WG 2 /* server write gathering */
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#define NFS_DEBUG_RC 4 /* server request caching */
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#define NFS_DPF(cat, args) \
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do { \
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if (nfs_debug & NFS_DEBUG_##cat) printf args; \
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} while (0)
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#else
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#define NFS_DPF(cat, args)
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#endif
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1997-02-10 02:22:35 +00:00
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2006-05-23 18:33:58 +00:00
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/*
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* On fast networks, the estimator will try to reduce the
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* timeout lower than the latency of the server's disks,
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* which results in too many timeouts, so cap the lower
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* bound.
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*/
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#define NFS_MINRTO (NFS_HZ >> 2)
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/*
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* Keep the RTO from increasing to unreasonably large values
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* when a server is not responding.
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*/
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#define NFS_MAXRTO (20 * NFS_HZ)
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enum nfs_rto_timer_t {
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NFS_DEFAULT_TIMER,
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NFS_GETATTR_TIMER,
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NFS_LOOKUP_TIMER,
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NFS_READ_TIMER,
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NFS_WRITE_TIMER,
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};
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#define NFS_MAX_TIMER (NFS_WRITE_TIMER)
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#define NFS_INITRTT (NFS_HZ << 3)
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2002-08-13 10:05:50 +00:00
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vfs_init_t nfs_init;
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vfs_uninit_t nfs_uninit;
|
2001-12-31 21:00:00 +00:00
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int nfs_mountroot(struct mount *mp, struct thread *td);
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2003-11-14 20:54:10 +00:00
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#ifndef NFS4_USE_RPCCLNT
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2001-09-18 23:32:09 +00:00
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int nfs_send(struct socket *, struct sockaddr *, struct mbuf *,
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struct nfsreq *);
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int nfs_sndlock(struct nfsreq *);
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void nfs_sndunlock(struct nfsreq *);
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2003-11-14 20:54:10 +00:00
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#endif /* ! NFS4_USE_RPCCLNT */
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2005-01-24 12:31:06 +00:00
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int nfs_vinvalbuf(struct vnode *, int, struct thread *, int);
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2001-09-18 23:32:09 +00:00
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int nfs_readrpc(struct vnode *, struct uio *, struct ucred *);
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int nfs_writerpc(struct vnode *, struct uio *, struct ucred *, int *,
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int *);
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int nfs_commit(struct vnode *vp, u_quad_t offset, int cnt,
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struct ucred *cred, struct thread *td);
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int nfs_readdirrpc(struct vnode *, struct uio *, struct ucred *);
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2002-01-14 02:13:46 +00:00
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int nfs_nfsiodnew(void);
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2004-09-07 08:56:43 +00:00
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int nfs_asyncio(struct nfsmount *, struct buf *, struct ucred *, struct thread *);
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2004-09-27 19:44:39 +00:00
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int nfs_doio(struct vnode *, struct buf *, struct ucred *, struct thread *);
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2004-12-15 22:20:22 +00:00
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void nfs_doio_directwrite (struct buf *);
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2004-07-06 09:12:03 +00:00
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void nfs_up(struct nfsreq *, struct nfsmount *, struct thread *,
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const char *, int);
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void nfs_down(struct nfsreq *, struct nfsmount *, struct thread *,
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const char *, int, int);
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2001-09-18 23:32:09 +00:00
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int nfs_readlinkrpc(struct vnode *, struct uio *, struct ucred *);
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2002-06-28 21:53:08 +00:00
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int nfs_sigintr(struct nfsmount *, struct nfsreq *, struct thread *);
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2001-09-18 23:32:09 +00:00
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int nfs_readdirplusrpc(struct vnode *, struct uio *, struct ucred *);
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int nfs_request(struct vnode *, struct mbuf *, int, struct thread *,
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struct ucred *, struct mbuf **, struct mbuf **, caddr_t *);
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int nfs_loadattrcache(struct vnode **, struct mbuf **, caddr_t *,
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struct vattr *, int);
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int nfsm_mbuftouio(struct mbuf **, struct uio *, int, caddr_t *);
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void nfs_nhinit(void);
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2004-04-11 13:30:20 +00:00
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void nfs_nhuninit(void);
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2002-01-02 00:41:26 +00:00
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int nfs_nmcancelreqs(struct nfsmount *);
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2001-09-18 23:32:09 +00:00
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void nfs_timer(void*);
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2003-11-14 20:54:10 +00:00
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2001-09-18 23:32:09 +00:00
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int nfs_connect(struct nfsmount *, struct nfsreq *);
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void nfs_disconnect(struct nfsmount *);
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void nfs_safedisconnect(struct nfsmount *);
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int nfs_getattrcache(struct vnode *, struct vattr *);
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int nfsm_strtmbuf(struct mbuf **, char **, const char *, long);
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int nfs_bioread(struct vnode *, struct uio *, int, struct ucred *);
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int nfsm_uiotombuf(struct uio *, struct mbuf **, int, caddr_t *);
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void nfs_clearcommit(struct mount *);
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int nfs_writebp(struct buf *, int, struct thread *);
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int nfs_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
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struct thread *);
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2001-12-14 01:16:57 +00:00
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int nfs_meta_setsize (struct vnode *, struct ucred *,
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struct thread *, u_quad_t);
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2001-09-18 23:32:09 +00:00
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2004-12-06 21:11:15 +00:00
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void nfs_set_sigmask __P((struct thread *td, sigset_t *oldset));
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void nfs_restore_sigmask __P((struct thread *td, sigset_t *set));
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int nfs_msleep __P((struct thread *td, void *ident, struct mtx *mtx, int priority,
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char *wmesg, int timo));
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1999-12-29 05:07:58 +00:00
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#endif /* _KERNEL */
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1994-08-21 06:50:16 +00:00
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#endif
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