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_setattr(struct dentry *dentry, struct iattr *attr);
69 int ocfs2_getattr(const struct path *path, struct kstat *stat,
70 		  u32 request_mask, unsigned int flags);
71 int ocfs2_permission(struct inode *inode, int mask);
72 
73 int ocfs2_should_update_atime(struct inode *inode,
74 			      struct vfsmount *vfsmnt);
75 int ocfs2_update_inode_atime(struct inode *inode,
76 			     struct buffer_head *bh);
77 
78 int ocfs2_change_file_space(struct file *file, unsigned int cmd,
79 			    struct ocfs2_space_resv *sr);
80 
81 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
82 				   size_t count);
83 int ocfs2_remove_inode_range(struct inode *inode,
84 			     struct buffer_head *di_bh, u64 byte_start,
85 			     u64 byte_len);
86 #endif /* OCFS2_FILE_H */
87