| /* | 
 |  * Helper routines for the NFS client caches | 
 |  * | 
 |  * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> | 
 |  */ | 
 |  | 
 | #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 int nfs_cache_register(struct cache_detail *cd); | 
 | extern void nfs_cache_unregister(struct cache_detail *cd); |