cache_lib.h

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/*
 * Helper routines for the NFS client caches
 *
 * Copyright (c) 2009 Trond Myklebust <[email protected]>
 */

#include <linux/completion.h>
#include <linux/sunrpc/cache.h>
#include <linux/atomic.h>

/*
 * Deferred request handling
 */
struct nfs_cache_defer_req {
    struct cache_req req;
    struct cache_deferred_req deferred_req;
    struct completion completion;
    atomic_t count;
};

extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);

extern void nfs_cache_init(struct cache_detail *cd);
extern void nfs_cache_destroy(struct cache_detail *cd);
extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
extern int nfs_cache_register_sb(struct super_block *sb,
                 struct cache_detail *cd);
extern void nfs_cache_unregister_sb(struct super_block *sb,
                    struct cache_detail *cd);