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/* Coda filesystem -- Linux Minicache
*
* Copyright (C) 1989 - 1997 Carnegie Mellon University
*
* Carnegie Mellon University encourages users of this software to
* contribute improvements to the Coda project. Contact Peter Braam
* <coda@cs.cmu.edu>
*/
#ifndef _CFSNC_HEADER_
#define _CFSNC_HEADER_
/*
* Structure for an element in the Coda Credential Cache.
*/
struct coda_cache {
struct list_head cc_cclist; /* list of all cache entries */
struct list_head cc_cnlist; /* list of cache entries/cnode */
int cc_mask;
struct coda_cred cc_cred;
};
void coda_ccinsert(struct coda_cache *el, struct super_block *sb);
void coda_cninsert(struct coda_cache *el, struct coda_inode_info *cnp);
void coda_ccremove(struct coda_cache *el);
void coda_cnremove(struct coda_cache *el);
void coda_cache_create(struct inode *inode, int mask);
struct coda_cache *coda_cache_find(struct inode *inode);
void coda_cache_enter(struct inode *inode, int mask);
void coda_cache_clear_cnp(struct coda_inode_info *cnp);
void coda_cache_clear_all(struct super_block *sb);
void coda_cache_clear_cred(struct super_block *sb, struct coda_cred *cred);
int coda_cache_check(struct inode *inode, int mask);
void coda_dentry_delete(struct dentry *dentry);
void coda_zapfid(struct ViceFid *fid, struct super_block *sb, int flag);
/*
* 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;
};
#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_
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