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         u64                     cookie;
  24         struct file             *fp_file;
  25         struct mutex            fp_mutex;
  26         struct ocfs2_lock_res   fp_flock;
  27 };
  28
  29 int ocfs2_add_inode_data(struct ocfs2_super *osb,
  30                          struct inode *inode,
  31                          u32 *logical_offset,
  32                          u32 clusters_to_add,
  33                          int mark_unwritten,
  34                          struct buffer_head *fe_bh,
  35                          handle_t *handle,
  36                          struct ocfs2_alloc_context *data_ac,
  37                          struct ocfs2_alloc_context *meta_ac,
  38                          enum ocfs2_alloc_restarted *reason_ret);
  39 int ocfs2_set_inode_size(handle_t *handle,
  40                 struct inode *inode,
  41                 struct buffer_head *fe_bh,
  42                 u64 new_i_size);
  43 int ocfs2_simple_size_update(struct inode *inode,
  44                              struct buffer_head *di_bh,
  45                              u64 new_i_size);
  46 int ocfs2_truncate_file(struct inode *inode,
  47                 struct buffer_head *di_bh,
  48                 u64 new_i_size);
  49 int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh,
  50                           u64 new_i_size, u64 zero_to);
  51 int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
  52                       loff_t zero_to);
  53 int ocfs2_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
  54                   struct iattr *attr);
  55 int ocfs2_getattr(struct mnt_idmap *idmap, const struct path *path,
  56                   struct kstat *stat, u32 request_mask, unsigned int flags);
  57 int ocfs2_permission(struct mnt_idmap *idmap,
  58                      struct inode *inode,
  59                      int mask);
  60
  61 int ocfs2_should_update_atime(struct inode *inode,
  62                               struct vfsmount *vfsmnt);
  63 int ocfs2_update_inode_atime(struct inode *inode,
  64                              struct buffer_head *bh);
  65
  66 int ocfs2_change_file_space(struct file *file, unsigned int cmd,
  67                             struct ocfs2_space_resv *sr);
  68
  69 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
  70                                    size_t count);
  71 int ocfs2_remove_inode_range(struct inode *inode,
  72                              struct buffer_head *di_bh, u64 byte_start,
  73                              u64 byte_len);
  74 #endif /* OCFS2_FILE_H */