fsdax: dedup file range to use a compare function

[sfrench/cifs-2.6.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9ad5e3520fae577c2a216859aba20f8d26241172..134e9d7ad5d68eae76dd0e9db5f7143081b317fe 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -74,6 +74,7 @@ struct fsverity_operations;
 struct fs_context;
 struct fs_parameter_spec;
 struct fileattr;
+struct iomap_ops;
 
 extern void __init inode_init(void);
 extern void __init inode_init_early(void);
@@ -2070,10 +2071,13 @@ extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
 extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
                                       struct file *file_out, loff_t pos_out,
                                       size_t len, unsigned int flags);
-extern int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
-                                        struct file *file_out, loff_t pos_out,
-                                        loff_t *count,
-                                        unsigned int remap_flags);
+int __generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
+                                   struct file *file_out, loff_t pos_out,
+                                   loff_t *len, unsigned int remap_flags,
+                                   const struct iomap_ops *dax_read_ops);
+int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
+                                 struct file *file_out, loff_t pos_out,
+                                 loff_t *count, unsigned int remap_flags);
 extern loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
                                  struct file *file_out, loff_t pos_out,
                                  loff_t len, unsigned int remap_flags);