| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Helper routines for the NFS client caches |
| 4 | * |
| 5 | * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com> |
| 6 | */ |
| 7 | |
| 8 | #include <linux/completion.h> |
| 9 | #include <linux/sunrpc/cache.h> |
| 10 | #include <linux/atomic.h> |
| 11 | |
| 12 | /* |
| 13 | * Deferred request handling |
| 14 | */ |
| 15 | struct nfs_cache_defer_req { |
| 16 | struct cache_req req; |
| 17 | struct cache_deferred_req deferred_req; |
| 18 | struct completion completion; |
| 19 | refcount_t count; |
| 20 | }; |
| 21 | |
| 22 | extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name); |
| 23 | extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void); |
| 24 | extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq); |
| 25 | extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq); |
| 26 | |
| 27 | extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd); |
| 28 | extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd); |
| 29 | extern int nfs_cache_register_sb(struct super_block *sb, |
| 30 | struct cache_detail *cd); |
| 31 | extern void nfs_cache_unregister_sb(struct super_block *sb, |
| 32 | struct cache_detail *cd); |