fs/ocfs2/dlm/dlmdebug.h

   1 /* -*- mode: c; c-basic-offset: 8; -*-
   2  * vim: noexpandtab sw=8 ts=8 sts=0:
   3  *
   4  * dlmdebug.h
   5  *
   6  * Copyright (C) 2008 Oracle.  All rights reserved.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public
  19  * License along with this program; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 021110-1307, USA.
  22  *
  23  */
  24
  25 #ifndef DLMDEBUG_H
  26 #define DLMDEBUG_H
  27
  28 #ifdef CONFIG_DEBUG_FS
  29
  30 struct dlm_debug_ctxt {
  31         struct kref debug_refcnt;
  32         struct dentry *debug_state_dentry;
  33         struct dentry *debug_lockres_dentry;
  34 };
  35
  36 struct debug_buffer {
  37         int len;
  38         char *buf;
  39 };
  40
  41 struct debug_lockres {
  42         int dl_len;
  43         char *dl_buf;
  44         struct dlm_ctxt *dl_ctxt;
  45         struct dlm_lock_resource *dl_res;
  46 };
  47
  48 int dlm_debug_init(struct dlm_ctxt *dlm);
  49 void dlm_debug_shutdown(struct dlm_ctxt *dlm);
  50
  51 int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm);
  52 void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm);
  53
  54 int dlm_create_debugfs_root(void);
  55 void dlm_destroy_debugfs_root(void);
  56
  57 #else
  58
  59 static int dlm_debug_init(struct dlm_ctxt *dlm)
  60 {
  61         return 0;
  62 }
  63 static void dlm_debug_shutdown(struct dlm_ctxt *dlm)
  64 {
  65 }
  66 static int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
  67 {
  68         return 0;
  69 }
  70 static void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
  71 {
  72 }
  73 static int dlm_create_debugfs_root(void)
  74 {
  75         return 0;
  76 }
  77 static void dlm_destroy_debugfs_root(void)
  78 {
  79 }
  80
  81 #endif  /* CONFIG_DEBUG_FS */
  82 #endif  /* DLMDEBUG_H */