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32 lines · 1.0 KiB

1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Helper routines for the NFS client caches
4 *
5 * Copyright (c) 2009 Trond Myklebust <[email protected]>
6 */
7
8#include <linux/completion.h>
9#include <linux/sunrpc/cache.h>
10#include <linux/atomic.h>
11
12/*
13 * Deferred request handling
14 */
15struct nfs_cache_defer_req {
16 struct cache_req req;
17 struct cache_deferred_req deferred_req;
18 struct completion completion;
19 refcount_t count;
20};
21
22extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
23extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
24extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
25extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
26
27extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
28extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
29extern int nfs_cache_register_sb(struct super_block *sb,
30 struct cache_detail *cd);
31extern void nfs_cache_unregister_sb(struct super_block *sb,
32 struct cache_detail *cd);