fs/ocfs2/localalloc.h

   1 /* -*- mode: c; c-basic-offset: 8; -*-
   2  * vim: noexpandtab sw=8 ts=8 sts=0:
   3  *
   4  * localalloc.h
   5  *
   6  * Function prototypes
   7  *
   8  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2 of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public
  21  * License along with this program; if not, write to the
  22  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23  * Boston, MA 021110-1307, USA.
  24  */
  25
  26 #ifndef OCFS2_LOCALALLOC_H
  27 #define OCFS2_LOCALALLOC_H
  28
  29 int ocfs2_load_local_alloc(struct ocfs2_super *osb);
  30
  31 void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb);
  32
  33 int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
  34                                      int node_num,
  35                                      struct ocfs2_dinode **alloc_copy);
  36
  37 int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
  38                                         struct ocfs2_dinode *alloc);
  39
  40 int ocfs2_alloc_should_use_local(struct ocfs2_super *osb,
  41                                  u64 bits);
  42
  43 struct ocfs2_alloc_context;
  44 int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
  45                                    struct ocfs2_journal_handle *passed_handle,
  46                                    u32 bits_wanted,
  47                                    struct ocfs2_alloc_context *ac);
  48
  49 int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
  50                                  struct ocfs2_journal_handle *handle,
  51                                  struct ocfs2_alloc_context *ac,
  52                                  u32 min_bits,
  53                                  u32 *bit_off,
  54                                  u32 *num_bits);
  55
  56 #endif /* OCFS2_LOCALALLOC_H */