440 				 struct file *dst_file, loff_t dst_pos,  in vfs_dedupe_file_range_one()  argument
448 	ret = mnt_want_write_file(dst_file);  in vfs_dedupe_file_range_one()
460 	ret = remap_verify_area(dst_file, dst_pos, len, true);  in vfs_dedupe_file_range_one()
465 	if (!allow_file_dedupe(dst_file))  in vfs_dedupe_file_range_one()
469 	if (file_inode(src_file)->i_sb != file_inode(dst_file)->i_sb)  in vfs_dedupe_file_range_one()
473 	if (S_ISDIR(file_inode(dst_file)->i_mode))  in vfs_dedupe_file_range_one()
477 	if (!dst_file->f_op->remap_file_range)  in vfs_dedupe_file_range_one()
485 	ret = dst_file->f_op->remap_file_range(src_file, src_pos, dst_file,  in vfs_dedupe_file_range_one()
488 	mnt_drop_write_file(dst_file);  in vfs_dedupe_file_range_one()
542 		struct file *dst_file = dst_fd.file;  in vfs_dedupe_file_range()  local
544 		if (!dst_file) {  in vfs_dedupe_file_range()
554 		deduped = vfs_dedupe_file_range_one(file, off, dst_file,  in vfs_dedupe_file_range()