blob: 317db95e37f80375b371130afd58cb31f39161ed [file] [log] [blame]
Trond Myklebuste571cbf2009-08-19 18:12:27 -04001/*
2 * Helper routines for the NFS client caches
3 *
4 * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
5 */
6
7#include <linux/completion.h>
8#include <linux/sunrpc/cache.h>
Arun Sharma600634972011-07-26 16:09:06 -07009#include <linux/atomic.h>
Trond Myklebuste571cbf2009-08-19 18:12:27 -040010
11/*
12 * Deferred request handling
13 */
14struct nfs_cache_defer_req {
15 struct cache_req req;
16 struct cache_deferred_req deferred_req;
17 struct completion completion;
18 atomic_t count;
19};
20
21extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
22extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
23extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
24extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
25
Stanislav Kinsbursky9222b952011-11-25 17:12:48 +030026extern void nfs_cache_init(struct cache_detail *cd);
27extern void nfs_cache_destroy(struct cache_detail *cd);
Stanislav Kinsbursky5c1cacb2011-11-25 17:12:56 +030028extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
29extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
Stanislav Kinsbursky9df69c82011-11-25 17:13:12 +030030extern int nfs_cache_register_sb(struct super_block *sb,
31 struct cache_detail *cd);
32extern void nfs_cache_unregister_sb(struct super_block *sb,
33 struct cache_detail *cd);