LXR linux/fs/ocfs2/file.h

   1/* -*- mode: c; c-basic-offset: 8; -*-
   2 * vim: noexpandtab sw=8 ts=8 sts=0:
   3 *
   4 * file.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_FILE_H
  27#define OCFS2_FILE_H
  28
  29extern const struct file_operations ocfs2_fops;
  30extern const struct file_operations ocfs2_dops;
  31extern const struct file_operations ocfs2_fops_no_plocks;
  32extern const struct file_operations ocfs2_dops_no_plocks;
  33extern const struct inode_operations ocfs2_file_iops;
  34extern const struct inode_operations ocfs2_special_file_iops;
  35struct ocfs2_alloc_context;
  36enum ocfs2_alloc_restarted;
  37
  38struct ocfs2_file_private {
  39        struct file             *fp_file;
  40        struct mutex            fp_mutex;
  41        struct ocfs2_lock_res   fp_flock;
  42};
  43
  44int ocfs2_add_inode_data(struct ocfs2_super *osb,
  45                         struct inode *inode,
  46                         u32 *logical_offset,
  47                         u32 clusters_to_add,
  48                         int mark_unwritten,
  49                         struct buffer_head *fe_bh,
  50                         handle_t *handle,
  51                         struct ocfs2_alloc_context *data_ac,
  52                         struct ocfs2_alloc_context *meta_ac,
  53                         enum ocfs2_alloc_restarted *reason_ret);
  54int ocfs2_set_inode_size(handle_t *handle,
  55                struct inode *inode,
  56                struct buffer_head *fe_bh,
  57                u64 new_i_size);
  58int ocfs2_simple_size_update(struct inode *inode,
  59                             struct buffer_head *di_bh,
  60                             u64 new_i_size);
  61int ocfs2_truncate_file(struct inode *inode,
  62                struct buffer_head *di_bh,
  63                u64 new_i_size);
  64int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
  65                          u64 new_i_size, u64 zero_to);
  66int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
  67                      loff_t zero_to);
  68int ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
  69                u32 clusters_to_add, int mark_unwritten);
  70int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
  71int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
  72                  struct kstat *stat);
  73int ocfs2_permission(struct inode *inode, int mask);
  74
  75int ocfs2_should_update_atime(struct inode *inode,
  76                              struct vfsmount *vfsmnt);
  77int ocfs2_update_inode_atime(struct inode *inode,
  78                             struct buffer_head *bh);
  79
  80int ocfs2_change_file_space(struct file *file, unsigned int cmd,
  81                            struct ocfs2_space_resv *sr);
  82
  83int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
  84                                   size_t count);
  85#endif /* OCFS2_FILE_H */
  86