Merge tag 'configfs-for-4.7' of git://git.infradead.org/users/hch/configfs
[linux-2.6-block.git] / fs / nfs / cache_lib.h
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1/*
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>
60063497 9#include <linux/atomic.h>
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10
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
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26extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
27extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
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28extern int nfs_cache_register_sb(struct super_block *sb,
29 struct cache_detail *cd);
30extern void nfs_cache_unregister_sb(struct super_block *sb,
31 struct cache_detail *cd);