fs/afs/kafsasyncd.h

   1 /* kafsasyncd.h: AFS asynchronous operation daemon
   2  *
   3  * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #ifndef _LINUX_AFS_KAFSASYNCD_H
  13 #define _LINUX_AFS_KAFSASYNCD_H
  14
  15 #include "types.h"
  16
  17 struct afs_async_op;
  18
  19 struct afs_async_op_ops {
  20         void (*attend)(struct afs_async_op *op);
  21         void (*discard)(struct afs_async_op *op);
  22 };
  23
  24 /*****************************************************************************/
  25 /*
  26  * asynchronous operation record
  27  */
  28 struct afs_async_op
  29 {
  30         struct list_head                link;
  31         struct afs_server               *server;        /* server being contacted */
  32         struct rxrpc_call               *call;          /* RxRPC call performing op */
  33         wait_queue_t                    waiter;         /* wait queue for kafsasyncd */
  34         const struct afs_async_op_ops   *ops;           /* operations */
  35 };
  36
  37 static inline void afs_async_op_init(struct afs_async_op *op,
  38                                      const struct afs_async_op_ops *ops)
  39 {
  40         INIT_LIST_HEAD(&op->link);
  41         op->call = NULL;
  42         op->ops = ops;
  43 }
  44
  45 extern int afs_kafsasyncd_start(void);
  46 extern void afs_kafsasyncd_stop(void);
  47
  48 extern void afs_kafsasyncd_begin_op(struct afs_async_op *op);
  49 extern void afs_kafsasyncd_attend_op(struct afs_async_op *op);
  50 extern void afs_kafsasyncd_terminate_op(struct afs_async_op *op);
  51
  52 #endif /* _LINUX_AFS_KAFSASYNCD_H */