xref: /OK3568_Linux_fs/kernel/fs/ocfs2/file.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /* -*- mode: c; c-basic-offset: 8; -*-
3*4882a593Smuzhiyun  * vim: noexpandtab sw=8 ts=8 sts=0:
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * file.h
6*4882a593Smuzhiyun  *
7*4882a593Smuzhiyun  * Function prototypes
8*4882a593Smuzhiyun  *
9*4882a593Smuzhiyun  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
10*4882a593Smuzhiyun  */
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun #ifndef OCFS2_FILE_H
13*4882a593Smuzhiyun #define OCFS2_FILE_H
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun extern const struct file_operations ocfs2_fops;
16*4882a593Smuzhiyun extern const struct file_operations ocfs2_dops;
17*4882a593Smuzhiyun extern const struct file_operations ocfs2_fops_no_plocks;
18*4882a593Smuzhiyun extern const struct file_operations ocfs2_dops_no_plocks;
19*4882a593Smuzhiyun extern const struct inode_operations ocfs2_file_iops;
20*4882a593Smuzhiyun extern const struct inode_operations ocfs2_special_file_iops;
21*4882a593Smuzhiyun struct ocfs2_alloc_context;
22*4882a593Smuzhiyun enum ocfs2_alloc_restarted;
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun struct ocfs2_file_private {
25*4882a593Smuzhiyun 	struct file		*fp_file;
26*4882a593Smuzhiyun 	struct mutex		fp_mutex;
27*4882a593Smuzhiyun 	struct ocfs2_lock_res	fp_flock;
28*4882a593Smuzhiyun };
29*4882a593Smuzhiyun 
30*4882a593Smuzhiyun int ocfs2_add_inode_data(struct ocfs2_super *osb,
31*4882a593Smuzhiyun 			 struct inode *inode,
32*4882a593Smuzhiyun 			 u32 *logical_offset,
33*4882a593Smuzhiyun 			 u32 clusters_to_add,
34*4882a593Smuzhiyun 			 int mark_unwritten,
35*4882a593Smuzhiyun 			 struct buffer_head *fe_bh,
36*4882a593Smuzhiyun 			 handle_t *handle,
37*4882a593Smuzhiyun 			 struct ocfs2_alloc_context *data_ac,
38*4882a593Smuzhiyun 			 struct ocfs2_alloc_context *meta_ac,
39*4882a593Smuzhiyun 			 enum ocfs2_alloc_restarted *reason_ret);
40*4882a593Smuzhiyun int ocfs2_set_inode_size(handle_t *handle,
41*4882a593Smuzhiyun 		struct inode *inode,
42*4882a593Smuzhiyun 		struct buffer_head *fe_bh,
43*4882a593Smuzhiyun 		u64 new_i_size);
44*4882a593Smuzhiyun int ocfs2_simple_size_update(struct inode *inode,
45*4882a593Smuzhiyun 			     struct buffer_head *di_bh,
46*4882a593Smuzhiyun 			     u64 new_i_size);
47*4882a593Smuzhiyun int ocfs2_truncate_file(struct inode *inode,
48*4882a593Smuzhiyun 		struct buffer_head *di_bh,
49*4882a593Smuzhiyun 		u64 new_i_size);
50*4882a593Smuzhiyun int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
51*4882a593Smuzhiyun 			  u64 new_i_size, u64 zero_to);
52*4882a593Smuzhiyun int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
53*4882a593Smuzhiyun 		      loff_t zero_to);
54*4882a593Smuzhiyun int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
55*4882a593Smuzhiyun int ocfs2_getattr(const struct path *path, struct kstat *stat,
56*4882a593Smuzhiyun 		  u32 request_mask, unsigned int flags);
57*4882a593Smuzhiyun int ocfs2_permission(struct inode *inode, int mask);
58*4882a593Smuzhiyun 
59*4882a593Smuzhiyun int ocfs2_should_update_atime(struct inode *inode,
60*4882a593Smuzhiyun 			      struct vfsmount *vfsmnt);
61*4882a593Smuzhiyun int ocfs2_update_inode_atime(struct inode *inode,
62*4882a593Smuzhiyun 			     struct buffer_head *bh);
63*4882a593Smuzhiyun 
64*4882a593Smuzhiyun int ocfs2_change_file_space(struct file *file, unsigned int cmd,
65*4882a593Smuzhiyun 			    struct ocfs2_space_resv *sr);
66*4882a593Smuzhiyun 
67*4882a593Smuzhiyun int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
68*4882a593Smuzhiyun 				   size_t count);
69*4882a593Smuzhiyun int ocfs2_remove_inode_range(struct inode *inode,
70*4882a593Smuzhiyun 			     struct buffer_head *di_bh, u64 byte_start,
71*4882a593Smuzhiyun 			     u64 byte_len);
72*4882a593Smuzhiyun #endif /* OCFS2_FILE_H */
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