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Diffstat (limited to 'sys/cfs/cnode.h')
| -rw-r--r-- | sys/cfs/cnode.h | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/sys/cfs/cnode.h b/sys/cfs/cnode.h deleted file mode 100644 index cefc6a8ccf1f..000000000000 --- a/sys/cfs/cnode.h +++ /dev/null @@ -1,311 +0,0 @@ -/* - * - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/cfs/cnode.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - * $Id: cnode.h,v 1.2 1998/09/02 19:09:53 rvb Exp $ - * - */ - -/* - * Mach Operating System - * Copyright (c) 1990 Carnegie-Mellon University - * Copyright (c) 1989 Carnegie-Mellon University - * All rights reserved. The CMU software License Agreement specifies - * the terms and conditions for use and redistribution. - */ - -/* - * This code was written for the Coda file system at Carnegie Mellon University. - * Contributers include David Steere, James Kistler, and M. Satyanarayanan. - */ - -/* - * HISTORY - * $Log: cnode.h,v $ - * Revision 1.2 1998/09/02 19:09:53 rvb - * Pass2 complete - * - * Revision 1.1.1.1 1998/08/29 21:14:52 rvb - * Very Preliminary Coda - * - * Revision 1.10 1998/08/28 18:12:25 rvb - * Now it also works on FreeBSD -current. This code will be - * committed to the FreeBSD -current and NetBSD -current - * trees. It will then be tailored to the particular platform - * by flushing conditional code. - * - * Revision 1.9 1998/08/18 17:05:24 rvb - * Don't use __RCSID now - * - * Revision 1.8 1998/08/18 16:31:49 rvb - * Sync the code for NetBSD -current; test on 1.3 later - * - * Revision 1.7 98/02/24 22:22:53 rvb - * Fixes up mainly to flush iopen and friends - * - * Revision 1.6 98/01/31 20:53:19 rvb - * First version that works on FreeBSD 2.2.5 - * - * Revision 1.5 98/01/23 11:53:51 rvb - * Bring RVB_CODA1_1 to HEAD - * - * Revision 1.4.2.5 98/01/23 11:21:14 rvb - * Sync with 2.2.5 - * - * Revision 1.4.2.4 98/01/22 13:03:38 rvb - * Had Breaken ls . - * - * Revision 1.4.2.3 97/12/19 14:26:09 rvb - * session id - * - * Revision 1.4.2.2 97/12/16 12:40:24 rvb - * Sync with 1.3 - * - * Revision 1.4.2.1 97/12/06 17:41:28 rvb - * Sync with peters coda.h - * - * Revision 1.4 97/12/05 10:39:30 rvb - * Read CHANGES - * - * Revision 1.3.18.2 97/11/12 12:09:45 rvb - * reorg pass1 - * - * Revision 1.3.18.1 97/10/29 16:06:31 rvb - * Kill DYING - * - * Revision 1.3 1996/12/12 22:11:03 bnoble - * Fixed the "downcall invokes venus operation" deadlock in all known cases. - * There may be more. - * - * Revision 1.2 1996/01/02 16:57:26 bnoble - * Added support for Coda MiniCache and raw inode calls (final commit) - * - * Revision 1.1.2.1 1995/12/20 01:57:53 bnoble - * Added CODA-specific files - * - * Revision 3.1.1.1 1995/03/04 19:08:23 bnoble - * Branch for NetBSD port revisions - * - * Revision 3.1 1995/03/04 19:08:23 bnoble - * Bump to major revision 3 to prepare for NetBSD port - * - * Revision 2.2 1994/12/06 13:39:18 dcs - * Add a flag value to indicate a cnode was orphaned, e.g. the venus - * that created it has exited. This will allow one to restart venus - * even though some process may be cd'd into /coda. - * - * Revision 2.1 94/07/21 16:25:33 satya - * Conversion to C++ 3.0; start of Coda Release 2.0 - * - * Revision 1.2.7.1 94/06/16 11:26:02 raiff - * Branch for release beta-16Jun1994_39118 - * - * Revision 1.2 92/10/27 17:58:41 lily - * merge kernel/latest and alpha/src/cfs - * - * Revision 2.3 92/09/30 14:16:53 mja - * Picked up fixed #ifdef _KERNEL. Also... - * - * Substituted rvb's history blurb so that we agree with Mach 2.5 sources. - * [91/02/09 jjk] - * - * Added contributors blurb. - * [90/12/13 jjk] - * - * Revision 2.2 90/07/05 11:27:24 mrt - * Created for the Coda File System. - * [90/05/23 dcs] - * - * Revision 1.4 90/05/31 17:02:16 dcs - * Prepare for merge with facilities kernel. - * - * - * - */ - -#ifndef _CNODE_H_ -#define _CNODE_H_ - -#include <sys/vnode.h> -#include <sys/lock.h> -#include <machine/clock.h> - -MALLOC_DECLARE(M_CODA); - -/* - * tmp below since we need struct queue - */ -#include <cfs/cfsk.h> - -/* - * Cnode lookup stuff. - * NOTE: CODA_CACHESIZE must be a power of 2 for cfshash to work! - */ -#define CODA_CACHESIZE 512 - -#define CODA_ALLOC(ptr, cast, size) \ -do { \ - ptr = (cast)malloc((unsigned long) size, M_CODA, M_WAITOK); \ - if (ptr == 0) { \ - panic("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \ - } \ -} while (0) - -#define CODA_FREE(ptr, size) free((ptr), M_CODA) - -/* - * global cache state control - */ -extern int coda_nc_use; - -/* - * Used to select debugging statements throughout the cfs code. - */ -extern int codadebug; -extern int coda_nc_debug; -extern int coda_printf_delay; -extern int coda_vnop_print_entry; -extern int coda_psdev_print_entry; -extern int coda_vfsop_print_entry; - -#define CODADBGMSK(N) (1 << N) -#define CODADEBUG(N, STMT) { if (codadebug & CODADBGMSK(N)) { STMT } } -#define myprintf(args) \ -do { \ - if (coda_printf_delay) \ - DELAY(coda_printf_delay);\ - printf args ; \ -} while (0) - -struct cnode { - struct vnode *c_vnode; - u_short c_flags; /* flags (see below) */ - ViceFid c_fid; /* file handle */ - struct lock c_lock; /* new lock protocol */ - struct vnode *c_ovp; /* open vnode pointer */ - u_short c_ocount; /* count of openers */ - u_short c_owrite; /* count of open for write */ - struct vattr c_vattr; /* attributes */ - char *c_symlink; /* pointer to symbolic link */ - u_short c_symlen; /* length of symbolic link */ - dev_t c_device; /* associated vnode device */ - ino_t c_inode; /* associated vnode inode */ - struct cnode *c_next; /* links if on NetBSD machine */ -}; -#define VTOC(vp) ((struct cnode *)(vp)->v_data) -#define CTOV(cp) ((struct vnode *)((cp)->c_vnode)) - -/* flags */ -#define C_VATTR 0x01 /* Validity of vattr in the cnode */ -#define C_SYMLINK 0x02 /* Validity of symlink pointer in the Code */ -#define C_WANTED 0x08 /* Set if lock wanted */ -#define C_LOCKED 0x10 /* Set if lock held */ -#define C_UNMOUNTING 0X20 /* Set if unmounting */ -#define C_PURGING 0x40 /* Set if purging a fid */ - -#define VALID_VATTR(cp) ((cp->c_flags) & C_VATTR) -#define VALID_SYMLINK(cp) ((cp->c_flags) & C_SYMLINK) -#define IS_UNMOUNTING(cp) ((cp)->c_flags & C_UNMOUNTING) - -struct vcomm { - u_long vc_seq; - struct selinfo vc_selproc; - struct queue vc_requests; - struct queue vc_replys; -}; - -#define VC_OPEN(vcp) ((vcp)->vc_requests.forw != NULL) -#define MARK_VC_CLOSED(vcp) (vcp)->vc_requests.forw = NULL; -#define MARK_VC_OPEN(vcp) /* MT */ - -struct coda_clstat { - int ncalls; /* client requests */ - int nbadcalls; /* upcall failures */ - int reqs[CODA_NCALLS]; /* count of each request */ -}; -extern struct coda_clstat coda_clstat; - -/* - * CODA structure to hold mount/file system information - */ -struct coda_mntinfo { - struct vnode *mi_rootvp; - struct mount *mi_vfsp; - struct vcomm mi_vcomm; -}; -extern struct coda_mntinfo coda_mnttbl[]; /* indexed by minor device number */ - -/* - * vfs pointer to mount info - */ -#define vftomi(vfsp) ((struct coda_mntinfo *)(vfsp->mnt_data)) -#define CODA_MOUNTED(vfsp) (vftomi((vfsp)) != (struct coda_mntinfo *)0) - -/* - * vnode pointer to mount info - */ -#define vtomi(vp) ((struct coda_mntinfo *)(vp->v_mount->mnt_data)) - -/* - * Used for identifying usage of "Control" object - */ -extern struct vnode *coda_ctlvp; -#define IS_CTL_VP(vp) ((vp) == coda_ctlvp) -#define IS_CTL_NAME(vp, name, l)((l == CODA_CONTROLLEN) \ - && ((vp) == vtomi((vp))->mi_rootvp) \ - && strncmp(name, CODA_CONTROL, l) == 0) - -/* - * An enum to tell us whether something that will remove a reference - * to a cnode was a downcall or not - */ -enum dc_status { - IS_DOWNCALL = 6, - NOT_DOWNCALL = 7 -}; - -/* cfs_psdev.h */ -int coda_call(struct coda_mntinfo *mntinfo, int inSize, int *outSize, caddr_t buffer); - -/* cfs_subr.h */ -int handleDownCall(int opcode, union outputArgs *out); -void coda_unmounting(struct mount *whoIam); -int coda_vmflush(struct cnode *cp); - -/* cfs_vnodeops.h */ -struct cnode *make_coda_node(ViceFid *fid, struct mount *vfsp, short type); -int coda_vnodeopstats_init(void); - -/* coda_vfsops.h */ -struct mount *devtomp(dev_t dev); - -/* sigh */ -#define CODA_RDWR ((u_long) 31) - -#endif /* _CNODE_H_ */ - |