1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Helper routines for the NFS client caches 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #include <linux/completion.h> 9*4882a593Smuzhiyun #include <linux/sunrpc/cache.h> 10*4882a593Smuzhiyun #include <linux/atomic.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * Deferred request handling 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun struct nfs_cache_defer_req { 16*4882a593Smuzhiyun struct cache_req req; 17*4882a593Smuzhiyun struct cache_deferred_req deferred_req; 18*4882a593Smuzhiyun struct completion completion; 19*4882a593Smuzhiyun refcount_t count; 20*4882a593Smuzhiyun }; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name); 23*4882a593Smuzhiyun extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); 24*4882a593Smuzhiyun extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); 25*4882a593Smuzhiyun extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); 28*4882a593Smuzhiyun extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); 29*4882a593Smuzhiyun extern int nfs_cache_register_sb(struct super_block *sb, 30*4882a593Smuzhiyun struct cache_detail *cd); 31*4882a593Smuzhiyun extern void nfs_cache_unregister_sb(struct super_block *sb, 32*4882a593Smuzhiyun struct cache_detail *cd); 33