diff options
Diffstat (limited to 'include/linux/nfsd/cache.h')
-rw-r--r-- | include/linux/nfsd/cache.h | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/include/linux/nfsd/cache.h b/include/linux/nfsd/cache.h deleted file mode 100644 index 3a3f58934f5e..000000000000 --- a/include/linux/nfsd/cache.h +++ /dev/null | |||
@@ -1,86 +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/in.h> | ||
14 | #include <linux/uio.h> | ||
15 | |||
16 | /* | ||
17 | * Representation of a reply cache entry. | ||
18 | */ | ||
19 | struct svc_cacherep { | ||
20 | struct hlist_node c_hash; | ||
21 | struct list_head c_lru; | ||
22 | |||
23 | unsigned char c_state, /* unused, inprog, done */ | ||
24 | c_type, /* status, buffer */ | ||
25 | c_secure : 1; /* req came from port < 1024 */ | ||
26 | struct sockaddr_in c_addr; | ||
27 | __be32 c_xid; | ||
28 | u32 c_prot; | ||
29 | u32 c_proc; | ||
30 | u32 c_vers; | ||
31 | unsigned long c_timestamp; | ||
32 | union { | ||
33 | struct kvec u_vec; | ||
34 | __be32 u_status; | ||
35 | } c_u; | ||
36 | }; | ||
37 | |||
38 | #define c_replvec c_u.u_vec | ||
39 | #define c_replstat c_u.u_status | ||
40 | |||
41 | /* cache entry states */ | ||
42 | enum { | ||
43 | RC_UNUSED, | ||
44 | RC_INPROG, | ||
45 | RC_DONE | ||
46 | }; | ||
47 | |||
48 | /* return values */ | ||
49 | enum { | ||
50 | RC_DROPIT, | ||
51 | RC_REPLY, | ||
52 | RC_DOIT, | ||
53 | RC_INTR | ||
54 | }; | ||
55 | |||
56 | /* | ||
57 | * Cache types. | ||
58 | * We may want to add more types one day, e.g. for diropres and | ||
59 | * attrstat replies. Using cache entries with fixed length instead | ||
60 | * of buffer pointers may be more efficient. | ||
61 | */ | ||
62 | enum { | ||
63 | RC_NOCACHE, | ||
64 | RC_REPLSTAT, | ||
65 | RC_REPLBUFF, | ||
66 | }; | ||
67 | |||
68 | /* | ||
69 | * If requests are retransmitted within this interval, they're dropped. | ||
70 | */ | ||
71 | #define RC_DELAY (HZ/5) | ||
72 | |||
73 | int nfsd_reply_cache_init(void); | ||
74 | void nfsd_reply_cache_shutdown(void); | ||
75 | int nfsd_cache_lookup(struct svc_rqst *, int); | ||
76 | void nfsd_cache_update(struct svc_rqst *, int, __be32 *); | ||
77 | |||
78 | #ifdef CONFIG_NFSD_V4 | ||
79 | void nfsd4_set_statp(struct svc_rqst *rqstp, __be32 *statp); | ||
80 | #else /* CONFIG_NFSD_V4 */ | ||
81 | static inline void nfsd4_set_statp(struct svc_rqst *rqstp, __be32 *statp) | ||
82 | { | ||
83 | } | ||
84 | #endif /* CONFIG_NFSD_V4 */ | ||
85 | |||
86 | #endif /* NFSCACHE_H */ | ||