patch-2.1.75 linux/include/linux/coda_namecache.h

• Lines: 161
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.74/linux/include/linux/coda_namecache.h
• Orig date: Tue Dec 2 16:45:20 1997

diff -u --recursive --new-file v2.1.74/linux/include/linux/coda_namecache.h linux/include/linux/coda_namecache.h
@@ -1,160 +0,0 @@
-/* 
- * 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
- * cfsnc.h,v
- * Revision 1.2  1996/01/02 16:57:19  bnoble
- * Added support for Coda MiniCache and raw inode calls (final commit)
- *
- * Revision 1.1.2.1  1995/12/20 01:57:45  bnoble
- * Added CFS-specific files
- *
- * Revision 3.1.1.1  1995/03/04  19:08:22  bnoble
- * Branch for NetBSD port revisions
- *
- * Revision 3.1  1995/03/04  19:08:21  bnoble
- * Bump to major revision 3 to prepare for NetBSD port
- *
- * Revision 2.2  1994/08/28  19:37:39  luqi
- * Add a new CFS_REPLACE call to allow venus to replace a ViceFid in the
- * mini-cache.
- *
- * In "cfs.h":
- * Add CFS_REPLACE decl.
- *
- * In "cfs_namecache.c":
- * Add routine cfsnc_replace.
- *
- * In "cfs_subr.c":
- * Add case-statement to process CFS_REPLACE.
- *
- * In "cfsnc.h":
- * Add decl for CFSNC_REPLACE.
- *
- * Revision 2.1  94/07/21  16:25:27  satya
- * Conversion to C++ 3.0; start of Coda Release 2.0
- *
- * Revision 1.2  92/10/27  17:58:34  lily
- * merge kernel/latest and alpha/src/cfs
- * 
- * Revision 2.2  90/07/05  11:27:04  mrt
- * 	Created for the Coda File System.
- * 	[90/05/23            dcs]
- * 
- * Revision 1.4  90/05/31  17:02:12  dcs
- * Prepare for merge with facilities kernel.
- * 
- * 
- */
-#ifndef _CFSNC_HEADER_
-#define _CFSNC_HEADER_
-
-#include "coda.h"
-#include "coda_cnode.h"
-
-
-/*
- * Cfs constants
- */
-#define CFSNC_NAMELEN	15		/* longest name stored in cache */
-#define CFSNC_CACHESIZE 256		/* Default cache size */
-#define CFSNC_HASHSIZE	64		/* Must be multiple of 2 */
-/*
- * Structure for an element in the CFS Name Cache.
- */
-
-/* roughly 50 bytes per entry */
-struct cfscache {	
-	struct cfscache	*hash_next,*hash_prev;	/* Hash list */
-	struct cfscache	*lru_next, *lru_prev;	/* LRU list */
-	struct cnode	*cp;			/* vnode of the file */
-	struct cnode	*dcp;			/* parent's cnode */
-	struct CodaCred	*cred;			/* user credentials */
-	char		name[CFSNC_NAMELEN];	/* segment name */
-	int		namelen;		/* length of name */
-};
-
-
-
-/* exported */
-void cfsnc_init(void);
-void cfsnc_enter(struct cnode *dcp, register const char *name, int namelen, struct cnode *cp);
-struct cnode *cfsnc_lookup(struct cnode *dcp, register const char *name, int namelen);
-void cfsnc_zapParentfid(ViceFid *fid);
-void cfsnc_zapfid(ViceFid *fid);
-void cfsnc_zapfile(struct cnode *dcp, register const char *name, int length);
-void cfsnc_purge_user(struct CodaCred *cred);
-void cfsnc_flush(void);
-void cfsnc_replace(ViceFid *f1, ViceFid *f2);
-void print_cfsnc(void);
-void coda_print_ce(struct cfscache *);
-int cfsnc_resize(int hashsize, int heapsize);
- 
-  
-
-/* #define CFSNC_VALID(cncp)	( (cncp->dcp != (struct cnode *)0) && (cncp->cp->c_flags & C_VATTR) ) */
-#define CFSNC_VALID(cncp)	    (cncp->dcp != (struct cnode *)0) 
- 
-#define DATA_PART(cncp)				(struct cfscache *) \
-			((char *)cncp + (4*sizeof(struct cfscache *)))
-#define DATA_SIZE	(sizeof(struct cfscache)-(4*sizeof(struct cfscache *)))
-
-/*
- * Structure to contain statistics on the cache usage
- */
-
-struct cfsnc_statistics {
-	unsigned	hits;
-	unsigned	misses;
-	unsigned	enters;
-	unsigned	dbl_enters;
-	unsigned	long_name_enters;
-	unsigned	long_name_lookups;
-	unsigned	long_remove;
-	unsigned	lru_rm;
-	unsigned	zapPfids;
-	unsigned	zapFids;
-	unsigned	zapFile;
-	unsigned	zapUsers;
-	unsigned	Flushes;
-	unsigned        Sum_bucket_len;
-	unsigned        Sum2_bucket_len;
-	unsigned        Max_bucket_len;
-	unsigned        Num_zero_len;
-	unsigned        Search_len;
-};
-
-/* 
- * Symbols to aid in debugging the namecache code. Assumes the existence
- * of the variable cfsnc_debug, which is defined in cfs_namecache.c
- */
-extern int cfsnc_debug;
-#define CFSNC_DEBUG(N, STMT)     { if (cfsnc_debug & (1 <<N)) { STMT } }
-
-#define CFSNC_FIND		((u_long) 1)
-#define CFSNC_REMOVE		((u_long) 2)
-#define CFSNC_INIT		((u_long) 3)
-#define CFSNC_ENTER		((u_long) 4)
-#define CFSNC_LOOKUP		((u_long) 5)
-#define CFSNC_ZAPPFID		((u_long) 6)
-#define CFSNC_ZAPFID		((u_long) 7)
-#define CFSNC_ZAPVNODE		((u_long) 8)
-#define CFSNC_ZAPFILE		((u_long) 9)
-#define CFSNC_PURGEUSER		((u_long) 10)
-#define CFSNC_FLUSH		((u_long) 11)
-#define CFSNC_PRINTCFSNC	((u_long) 12)
-#define CFSNC_PRINTSTATS	((u_long) 13)
-#define CFSNC_REPLACE		((u_long) 14)
-
-#endif _CFSNC_HEADER_