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-rw-r--r--include/linux/nfsd/cache.h85
1 files changed, 0 insertions, 85 deletions
diff --git a/include/linux/nfsd/cache.h b/include/linux/nfsd/cache.h
deleted file mode 100644
index a165425dea41..000000000000
--- a/include/linux/nfsd/cache.h
+++ /dev/null
@@ -1,85 +0,0 @@
1/*
2 * include/linux/nfsd/cache.h
3 *
4 * Request reply cache. This was heavily inspired by the
5 * implementation in 4.3BSD/4.4BSD.
6 *
7 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
8 */
9
10#ifndef NFSCACHE_H
11#define NFSCACHE_H
12
13#include <linux/sunrpc/svc.h>
14
15/*
16 * Representation of a reply cache entry.
17 */
18struct svc_cacherep {
19 struct hlist_node c_hash;
20 struct list_head c_lru;
21
22 unsigned char c_state, /* unused, inprog, done */
23 c_type, /* status, buffer */
24 c_secure : 1; /* req came from port < 1024 */
25 struct sockaddr_in c_addr;
26 __be32 c_xid;
27 u32 c_prot;
28 u32 c_proc;
29 u32 c_vers;
30 unsigned long c_timestamp;
31 union {
32 struct kvec u_vec;
33 __be32 u_status;
34 } c_u;
35};
36
37#define c_replvec c_u.u_vec
38#define c_replstat c_u.u_status
39
40/* cache entry states */
41enum {
42 RC_UNUSED,
43 RC_INPROG,
44 RC_DONE
45};
46
47/* return values */
48enum {
49 RC_DROPIT,
50 RC_REPLY,
51 RC_DOIT,
52 RC_INTR
53};
54
55/*
56 * Cache types.
57 * We may want to add more types one day, e.g. for diropres and
58 * attrstat replies. Using cache entries with fixed length instead
59 * of buffer pointers may be more efficient.
60 */
61enum {
62 RC_NOCACHE,
63 RC_REPLSTAT,
64 RC_REPLBUFF,
65};
66
67/*
68 * If requests are retransmitted within this interval, they're dropped.
69 */
70#define RC_DELAY (HZ/5)
71
72int nfsd_reply_cache_init(void);
73void nfsd_reply_cache_shutdown(void);
74int nfsd_cache_lookup(struct svc_rqst *, int);
75void nfsd_cache_update(struct svc_rqst *, int, __be32 *);
76
77#ifdef CONFIG_NFSD_V4
78void nfsd4_set_statp(struct svc_rqst *rqstp, __be32 *statp);
79#else /* CONFIG_NFSD_V4 */
80static inline void nfsd4_set_statp(struct svc_rqst *rqstp, __be32 *statp)
81{
82}
83#endif /* CONFIG_NFSD_V4 */
84
85#endif /* NFSCACHE_H */