http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/nfsd/cache.h

/* * include/linux/nfsd/cache.h * * Request reply cache. This was heavily inspired by the * implementation in 4.3BSD/4.4BSD. * * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> */ #ifndef NFSCACHE_H #define NFSCACHE_H #ifdef __KERNEL__ #include <linux/in.h> #include <linux/uio.h> /* * Representation of a reply cache entry. The first two members *must* * be hash_next and hash_prev. */ struct svc_cacherep { struct hlist_node c_hash; struct list_head c_lru; unsigned char c_state, /* unused, inprog, done */ c_type, /* status, buffer */ c_secure : 1; /* req came from port < 1024 */ struct sockaddr_in c_addr; u32 c_xid; u32 c_prot; u32 c_proc; u32 c_vers; unsigned long c_timestamp; union { struct kvec u_vec; u32 u_status; } c_u; }; #define c_replvec c_u.u_vec #define c_replstat c_u.u_status /* cache entry states */ enum { RC_UNUSED, RC_INPROG, RC_DONE }; /* return values */ enum { RC_DROPIT, RC_REPLY, RC_DOIT, RC_INTR }; /* * Cache types. * We may want to add more types one day, e.g. for diropres and * attrstat replies. Using cache entries with fixed length instead * of buffer pointers may be more efficient. */ enum { RC_NOCACHE, RC_REPLSTAT, RC_REPLBUFF, }; /* * If requests are retransmitted within this interval, they're dropped. */ #define RC_DELAY (HZ/5) void nfsd_cache_init(void); void nfsd_cache_shutdown(void); int nfsd_cache_lookup(struct svc_rqst *, int); void nfsd_cache_update(struct svc_rqst *, int, u32 *); #endif /* __KERNEL__ */ #endif /* NFSCACHE_H */