drivers/staging/lustre/lustre/include/lustre_kernelcomm.h

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2013 Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  *
  31  * Author: Nathan Rutman <nathan.rutman@sun.com>
  32  *
  33  * Kernel <-> userspace communication routines.
  34  * The definitions below are used in the kernel and userspace.
  35  */
  36
  37 #ifndef __LUSTRE_KERNELCOMM_H__
  38 #define __LUSTRE_KERNELCOMM_H__
  39
  40 /* For declarations shared with userspace */
  41 #include "uapi_kernelcomm.h"
  42
  43 /* prototype for callback function on kuc groups */
  44 typedef int (*libcfs_kkuc_cb_t)(void *data, void *cb_arg);
  45
  46 /* Kernel methods */
  47 int libcfs_kkuc_msg_put(struct file *fp, void *payload);
  48 int libcfs_kkuc_group_put(unsigned int group, void *payload);
  49 int libcfs_kkuc_group_add(struct file *fp, int uid, unsigned int group,
  50                           void *data, size_t data_len);
  51 int libcfs_kkuc_group_rem(int uid, unsigned int group);
  52 int libcfs_kkuc_group_foreach(unsigned int group, libcfs_kkuc_cb_t cb_func,
  53                               void *cb_arg);
  54
  55 #endif /* __LUSTRE_KERNELCOMM_H__ */