438 				 struct file *dst_file, loff_t dst_pos,  in vfs_dedupe_file_range_one()  argument
446 	ret = mnt_want_write_file(dst_file);  in vfs_dedupe_file_range_one()
458 	ret = remap_verify_area(dst_file, dst_pos, len, true);  in vfs_dedupe_file_range_one()
463 	if (!allow_file_dedupe(dst_file))  in vfs_dedupe_file_range_one()
467 	if (src_file->f_path.mnt != dst_file->f_path.mnt)  in vfs_dedupe_file_range_one()
471 	if (S_ISDIR(file_inode(dst_file)->i_mode))  in vfs_dedupe_file_range_one()
475 	if (!dst_file->f_op->remap_file_range)  in vfs_dedupe_file_range_one()
483 	ret = dst_file->f_op->remap_file_range(src_file, src_pos, dst_file,  in vfs_dedupe_file_range_one()
486 	mnt_drop_write_file(dst_file);  in vfs_dedupe_file_range_one()
540 		struct file *dst_file = dst_fd.file;  in vfs_dedupe_file_range()  local
542 		if (!dst_file) {  in vfs_dedupe_file_range()
552 		deduped = vfs_dedupe_file_range_one(file, off, dst_file,  in vfs_dedupe_file_range()