cache_lib.h 1.0 KB

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  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. #include <linux/completion.h>
  8. #include <linux/sunrpc/cache.h>
  9. #include <linux/atomic.h>
  10. /*
  11. * Deferred request handling
  12. */
  13. struct nfs_cache_defer_req {
  14. struct cache_req req;
  15. struct cache_deferred_req deferred_req;
  16. struct completion completion;
  17. refcount_t count;
  18. };
  19. extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
  20. extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
  21. extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
  22. extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
  23. extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
  24. extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
  25. extern int nfs_cache_register_sb(struct super_block *sb,
  26. struct cache_detail *cd);
  27. extern void nfs_cache_unregister_sb(struct super_block *sb,
  28. struct cache_detail *cd);