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
  29 extern const struct file_operations ocfs2_fops;
  30 extern const struct file_operations ocfs2_dops;
  31 extern const struct file_operations ocfs2_fops_no_plocks;
  32 extern const struct file_operations ocfs2_dops_no_plocks;
  33 extern const struct inode_operations ocfs2_file_iops;
  34 extern const struct inode_operations ocfs2_special_file_iops;
  35 struct ocfs2_alloc_context;
  36 enum ocfs2_alloc_restarted;
  37
  38 struct ocfs2_file_private {
  39         struct file             *fp_file;
  40         struct mutex            fp_mutex;
  41         struct ocfs2_lock_res   fp_flock;
  42 };
  43
  44 int 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);
  54 int ocfs2_set_inode_size(handle_t *handle,
  55                 struct inode *inode,
  56                 struct buffer_head *fe_bh,
  57                 u64 new_i_size);
  58 int ocfs2_simple_size_update(struct inode *inode,
  59                              struct buffer_head *di_bh,
  60                              u64 new_i_size);
  61 int ocfs2_truncate_file(struct inode *inode,
  62                 struct buffer_head *di_bh,
  63                 u64 new_i_size);
  64 int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
  65                           u64 new_i_size, u64 zero_to);
  66 int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
  67                       loff_t zero_to);
  68 int ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
  69                 u32 clusters_to_add, int mark_unwritten);
  70 int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
  71 int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
  72                   struct kstat *stat);
  73 int ocfs2_permission(struct inode *inode, int mask);
  74
  75 int ocfs2_should_update_atime(struct inode *inode,
  76                               struct vfsmount *vfsmnt);
  77 int ocfs2_update_inode_atime(struct inode *inode,
  78                              struct buffer_head *bh);
  79
  80 int ocfs2_change_file_space(struct file *file, unsigned int cmd,
  81                             struct ocfs2_space_resv *sr);
  82
  83 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
  84                                    size_t count);
  85 #endif /* OCFS2_FILE_H */