1e571cbf1STrond Myklebust /* 2e571cbf1STrond Myklebust * Helper routines for the NFS client caches 3e571cbf1STrond Myklebust * 4e571cbf1STrond Myklebust * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> 5e571cbf1STrond Myklebust */ 6e571cbf1STrond Myklebust 7e571cbf1STrond Myklebust #include <linux/completion.h> 8e571cbf1STrond Myklebust #include <linux/sunrpc/cache.h> 960063497SArun Sharma #include <linux/atomic.h> 10e571cbf1STrond Myklebust 11e571cbf1STrond Myklebust /* 12e571cbf1STrond Myklebust * Deferred request handling 13e571cbf1STrond Myklebust */ 14e571cbf1STrond Myklebust struct nfs_cache_defer_req { 15e571cbf1STrond Myklebust struct cache_req req; 16e571cbf1STrond Myklebust struct cache_deferred_req deferred_req; 17e571cbf1STrond Myklebust struct completion completion; 18*0896cadeSElena Reshetova refcount_t count; 19e571cbf1STrond Myklebust }; 20e571cbf1STrond Myklebust 21e571cbf1STrond Myklebust extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name); 22e571cbf1STrond Myklebust extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); 23e571cbf1STrond Myklebust extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); 24e571cbf1STrond Myklebust extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); 25e571cbf1STrond Myklebust 265c1cacb1SStanislav Kinsbursky extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); 275c1cacb1SStanislav Kinsbursky extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); 289df69c81SStanislav Kinsbursky extern int nfs_cache_register_sb(struct super_block *sb, 299df69c81SStanislav Kinsbursky struct cache_detail *cd); 309df69c81SStanislav Kinsbursky extern void nfs_cache_unregister_sb(struct super_block *sb, 319df69c81SStanislav Kinsbursky struct cache_detail *cd); 32