18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Helper routines for the NFS client caches 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> 68c2ecf20Sopenharmony_ci */ 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#include <linux/completion.h> 98c2ecf20Sopenharmony_ci#include <linux/sunrpc/cache.h> 108c2ecf20Sopenharmony_ci#include <linux/atomic.h> 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci/* 138c2ecf20Sopenharmony_ci * Deferred request handling 148c2ecf20Sopenharmony_ci */ 158c2ecf20Sopenharmony_cistruct nfs_cache_defer_req { 168c2ecf20Sopenharmony_ci struct cache_req req; 178c2ecf20Sopenharmony_ci struct cache_deferred_req deferred_req; 188c2ecf20Sopenharmony_ci struct completion completion; 198c2ecf20Sopenharmony_ci refcount_t count; 208c2ecf20Sopenharmony_ci}; 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ciextern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name); 238c2ecf20Sopenharmony_ciextern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); 248c2ecf20Sopenharmony_ciextern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); 258c2ecf20Sopenharmony_ciextern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ciextern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); 288c2ecf20Sopenharmony_ciextern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); 298c2ecf20Sopenharmony_ciextern int nfs_cache_register_sb(struct super_block *sb, 308c2ecf20Sopenharmony_ci struct cache_detail *cd); 318c2ecf20Sopenharmony_ciextern void nfs_cache_unregister_sb(struct super_block *sb, 328c2ecf20Sopenharmony_ci struct cache_detail *cd); 33