162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Helper routines for the NFS client caches 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#include <linux/completion.h> 962306a36Sopenharmony_ci#include <linux/sunrpc/cache.h> 1062306a36Sopenharmony_ci#include <linux/atomic.h> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci/* 1362306a36Sopenharmony_ci * Deferred request handling 1462306a36Sopenharmony_ci */ 1562306a36Sopenharmony_cistruct nfs_cache_defer_req { 1662306a36Sopenharmony_ci struct cache_req req; 1762306a36Sopenharmony_ci struct cache_deferred_req deferred_req; 1862306a36Sopenharmony_ci struct completion completion; 1962306a36Sopenharmony_ci refcount_t count; 2062306a36Sopenharmony_ci}; 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ciextern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name); 2362306a36Sopenharmony_ciextern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); 2462306a36Sopenharmony_ciextern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); 2562306a36Sopenharmony_ciextern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ciextern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); 2862306a36Sopenharmony_ciextern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); 2962306a36Sopenharmony_ciextern int nfs_cache_register_sb(struct super_block *sb, 3062306a36Sopenharmony_ci struct cache_detail *cd); 3162306a36Sopenharmony_ciextern void nfs_cache_unregister_sb(struct super_block *sb, 3262306a36Sopenharmony_ci struct cache_detail *cd); 33