release/src-rt-6.x.4708/linux/linux-2.6.36/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 void dlm_print_one_mle(struct dlm_master_list_entry *mle);
  29
  30 #ifdef CONFIG_DEBUG_FS
  31
  32 struct dlm_debug_ctxt {
  33         struct kref debug_refcnt;
  34         struct dentry *debug_state_dentry;
  35         struct dentry *debug_lockres_dentry;
  36         struct dentry *debug_mle_dentry;
  37         struct dentry *debug_purgelist_dentry;
  38 };
  39
  40 struct debug_buffer {
  41         int len;
  42         char *buf;
  43 };
  44
  45 struct debug_lockres {
  46         int dl_len;
  47         char *dl_buf;
  48         struct dlm_ctxt *dl_ctxt;
  49         struct dlm_lock_resource *dl_res;
  50 };
  51
  52 int dlm_debug_init(struct dlm_ctxt *dlm);
  53 void dlm_debug_shutdown(struct dlm_ctxt *dlm);
  54
  55 int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm);
  56 void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm);
  57
  58 int dlm_create_debugfs_root(void);
  59 void dlm_destroy_debugfs_root(void);
  60
  61 #else
  62
  63 static inline int dlm_debug_init(struct dlm_ctxt *dlm)
  64 {
  65         return 0;
  66 }
  67 static inline void dlm_debug_shutdown(struct dlm_ctxt *dlm)
  68 {
  69 }
  70 static inline int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
  71 {
  72         return 0;
  73 }
  74 static inline void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
  75 {
  76 }
  77 static inline int dlm_create_debugfs_root(void)
  78 {
  79         return 0;
  80 }
  81 static inline void dlm_destroy_debugfs_root(void)
  82 {
  83 }
  84
  85 #endif  /* CONFIG_DEBUG_FS */
  86 #endif  /* DLMDEBUG_H */