fs/ocfs2/file.h

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