1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2e571cbf1STrond Myklebust /* 3e571cbf1STrond Myklebust * Helper routines for the NFS client caches 4e571cbf1STrond Myklebust * 5e571cbf1STrond Myklebust * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> 6e571cbf1STrond Myklebust */ 7e571cbf1STrond Myklebust 8e571cbf1STrond Myklebust #include <linux/completion.h> 9e571cbf1STrond Myklebust #include <linux/sunrpc/cache.h> 1060063497SArun Sharma #include <linux/atomic.h> 11e571cbf1STrond Myklebust 12e571cbf1STrond Myklebust /* 13e571cbf1STrond Myklebust * Deferred request handling 14e571cbf1STrond Myklebust */ 15e571cbf1STrond Myklebust struct nfs_cache_defer_req { 16e571cbf1STrond Myklebust struct cache_req req; 17e571cbf1STrond Myklebust struct cache_deferred_req deferred_req; 18e571cbf1STrond Myklebust struct completion completion; 19*0896cadeSElena Reshetova refcount_t count; 20e571cbf1STrond Myklebust }; 21e571cbf1STrond Myklebust 22e571cbf1STrond Myklebust extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name); 23e571cbf1STrond Myklebust extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); 24e571cbf1STrond Myklebust extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); 25e571cbf1STrond Myklebust extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); 26e571cbf1STrond Myklebust 275c1cacb1SStanislav Kinsbursky extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); 285c1cacb1SStanislav Kinsbursky extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); 299df69c81SStanislav Kinsbursky extern int nfs_cache_register_sb(struct super_block *sb, 309df69c81SStanislav Kinsbursky struct cache_detail *cd); 319df69c81SStanislav Kinsbursky extern void nfs_cache_unregister_sb(struct super_block *sb, 329df69c81SStanislav Kinsbursky struct cache_detail *cd); 33