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file.h
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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_simple_size_update(struct inode *inode,
55  struct buffer_head *di_bh,
56  u64 new_i_size);
57 int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
58  u64 new_i_size, u64 zero_to);
59 int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
60  loff_t zero_to);
61 int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
62 int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
63  struct kstat *stat);
64 int ocfs2_permission(struct inode *inode, int mask);
65 
66 int ocfs2_should_update_atime(struct inode *inode,
67  struct vfsmount *vfsmnt);
68 int ocfs2_update_inode_atime(struct inode *inode,
69  struct buffer_head *bh);
70 
71 int ocfs2_change_file_space(struct file *file, unsigned int cmd,
72  struct ocfs2_space_resv *sr);
73 
74 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
75  size_t count);
76 #endif /* OCFS2_FILE_H */
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