include/linux/nfsiod.h

   1 /*
   2  * linux/include/linux/nfsiod.h
   3  *
   4  * Declarations for asynchronous NFS RPC calls.
   5  *
   6  */
   7
   8 #ifndef _LINUX_NFSIOD_H
   9 #define _LINUX_NFSIOD_H
  10
  11 #include <linux/rpcsock.h>
  12 #include <linux/nfs_fs.h>
  13
  14 #ifdef __KERNEL__
  15
  16 /*
  17  * This is the callback handler for nfsiod requests.
  18  * Note that the callback procedure must NOT sleep.
  19  */
  20 struct nfsiod_req;
  21 typedef int     (*nfsiod_callback_t)(int result, struct nfsiod_req *);
  22
  23 /*
  24  * This is the nfsiod request struct.
  25  */
  26 struct nfsiod_req {
  27         struct nfsiod_req *     rq_next;
  28         struct nfsiod_req *     rq_prev;
  29         wait_queue_head_t       rq_wait;
  30         struct rpc_ioreq        rq_rpcreq;
  31         nfsiod_callback_t       rq_callback;
  32         struct nfs_server *     rq_server;
  33         struct inode *          rq_inode;
  34         struct page *           rq_page;
  35
  36         /* user creds */
  37         uid_t                   rq_fsuid;
  38         gid_t                   rq_fsgid;
  39         int                     rq_groups[NGROUPS];
  40
  41         /* retry handling */
  42         int                     rq_retries;
  43 };
  44
  45 struct nfsiod_req *     nfsiod_reserve(struct nfs_server *);
  46 void                    nfsiod_release(struct nfsiod_req *);
  47 void                    nfsiod_enqueue(struct nfsiod_req *);
  48 int                     nfsiod(void);
  49
  50
  51 #endif /* __KERNEL__ */
  52 #endif /* _LINUX_NFSIOD_H */