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 inode_operations ocfs2_file_iops;
  32 extern const struct inode_operations ocfs2_special_file_iops;
  33 struct ocfs2_alloc_context;
  34
  35 struct ocfs2_file_private {
  36         struct file             *fp_file;
  37         struct mutex            fp_mutex;
  38         struct ocfs2_lock_res   fp_flock;
  39 };
  40
  41 enum ocfs2_alloc_restarted {
  42         RESTART_NONE = 0,
  43         RESTART_TRANS,
  44         RESTART_META
  45 };
  46 int ocfs2_do_extend_allocation(struct ocfs2_super *osb,
  47                                struct inode *inode,
  48                                u32 *logical_offset,
  49                                u32 clusters_to_add,
  50                                int mark_unwritten,
  51                                struct buffer_head *fe_bh,
  52                                handle_t *handle,
  53                                struct ocfs2_alloc_context *data_ac,
  54                                struct ocfs2_alloc_context *meta_ac,
  55                                enum ocfs2_alloc_restarted *reason_ret);
  56 int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size,
  57                           u64 zero_to);
  58 int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_dinode *di,
  59                           u32 clusters_to_add, u32 extents_to_split,
  60                           struct ocfs2_alloc_context **data_ac,
  61                           struct ocfs2_alloc_context **meta_ac);
  62 int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
  63 int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
  64                   struct kstat *stat);
  65 int ocfs2_permission(struct inode *inode, int mask);
  66
  67 int ocfs2_should_update_atime(struct inode *inode,
  68                               struct vfsmount *vfsmnt);
  69 int ocfs2_update_inode_atime(struct inode *inode,
  70                              struct buffer_head *bh);
  71
  72 int ocfs2_change_file_space(struct file *file, unsigned int cmd,
  73                             struct ocfs2_space_resv *sr);
  74
  75 #endif /* OCFS2_FILE_H */