fs/ocfs2/file.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * file.h
0004  *
0005  * Function prototypes
0006  *
0007  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
0008  */
0009
0010 #ifndef OCFS2_FILE_H
0011 #define OCFS2_FILE_H
0012
0013 extern const struct file_operations ocfs2_fops;
0014 extern const struct file_operations ocfs2_dops;
0015 extern const struct file_operations ocfs2_fops_no_plocks;
0016 extern const struct file_operations ocfs2_dops_no_plocks;
0017 extern const struct inode_operations ocfs2_file_iops;
0018 extern const struct inode_operations ocfs2_special_file_iops;
0019 struct ocfs2_alloc_context;
0020 enum ocfs2_alloc_restarted;
0021
0022 struct ocfs2_file_private {
0023     struct file     *fp_file;
0024     struct mutex        fp_mutex;
0025     struct ocfs2_lock_res   fp_flock;
0026 };
0027
0028 int ocfs2_add_inode_data(struct ocfs2_super *osb,
0029              struct inode *inode,
0030              u32 *logical_offset,
0031              u32 clusters_to_add,
0032              int mark_unwritten,
0033              struct buffer_head *fe_bh,
0034              handle_t *handle,
0035              struct ocfs2_alloc_context *data_ac,
0036              struct ocfs2_alloc_context *meta_ac,
0037              enum ocfs2_alloc_restarted *reason_ret);
0038 int ocfs2_set_inode_size(handle_t *handle,
0039         struct inode *inode,
0040         struct buffer_head *fe_bh,
0041         u64 new_i_size);
0042 int ocfs2_simple_size_update(struct inode *inode,
0043                  struct buffer_head *di_bh,
0044                  u64 new_i_size);
0045 int ocfs2_truncate_file(struct inode *inode,
0046         struct buffer_head *di_bh,
0047         u64 new_i_size);
0048 int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
0049               u64 new_i_size, u64 zero_to);
0050 int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
0051               loff_t zero_to);
0052 int ocfs2_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
0053           struct iattr *attr);
0054 int ocfs2_getattr(struct user_namespace *mnt_userns, const struct path *path,
0055           struct kstat *stat, u32 request_mask, unsigned int flags);
0056 int ocfs2_permission(struct user_namespace *mnt_userns,
0057              struct inode *inode,
0058              int mask);
0059
0060 int ocfs2_should_update_atime(struct inode *inode,
0061                   struct vfsmount *vfsmnt);
0062 int ocfs2_update_inode_atime(struct inode *inode,
0063                  struct buffer_head *bh);
0064
0065 int ocfs2_change_file_space(struct file *file, unsigned int cmd,
0066                 struct ocfs2_space_resv *sr);
0067
0068 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
0069                    size_t count);
0070 int ocfs2_remove_inode_range(struct inode *inode,
0071                  struct buffer_head *di_bh, u64 byte_start,
0072                  u64 byte_len);
0073 #endif /* OCFS2_FILE_H */