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nfs
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cache_lib.h

cache_lib.h 1016 B
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  1. /*
    2. 

  2.  * Helper routines for the NFS client caches
    3. 

  3.  *
    4. 

  4.  * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
    5. 

  5.  */
    6. 

  6. 

  7. #include <linux/completion.h>
    8. 

  8. #include <linux/sunrpc/cache.h>
    9. 

  9. #include <linux/atomic.h>
    10. 

  10. 

  11. /*
    12. 

  12.  * Deferred request handling
    13. 

  13.  */
    14. 

  14. struct nfs_cache_defer_req {
    15. 

  15. 	struct cache_req req;
    16. 

  16. 	struct cache_deferred_req deferred_req;
    17. 

  17. 	struct completion completion;
    18. 

  18. 	atomic_t count;
    19. 

  19. };
    20. 

  20. 

  21. extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
    22. 

  22. extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
    23. 

  23. extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
    24. 

  24. extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
    25. 

  25. 

  26. extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
    27. 

  27. extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
    28. 

  28. extern int nfs_cache_register_sb(struct super_block *sb,
    29. 

  29. 				 struct cache_detail *cd);
    30. 

  30. extern void nfs_cache_unregister_sb(struct super_block *sb,
    31. 

  31. 				    struct cache_detail *cd);
    32.