1479 static int generic_copy_file_checks(struct file *file_in, loff_t pos_in,  in generic_copy_file_checks()  argument
1483 	struct inode *inode_in = file_inode(file_in);  in generic_copy_file_checks()
1489 	ret = generic_file_rw_checks(file_in, file_out);  in generic_copy_file_checks()
1506 		if (file_in->f_op->copy_file_range !=  in generic_copy_file_checks()
1509 	} else if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb) {  in generic_copy_file_checks()
1550 ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,  in vfs_copy_file_range()  argument
1556 	bool samesb = file_inode(file_in)->i_sb == file_inode(file_out)->i_sb;  in vfs_copy_file_range()
1561 	ret = generic_copy_file_checks(file_in, pos_in, file_out, pos_out, &len,  in vfs_copy_file_range()
1566 	ret = rw_verify_area(READ, file_in, &pos_in, len);  in vfs_copy_file_range()
1585 		ret = file_out->f_op->copy_file_range(file_in, pos_in,  in vfs_copy_file_range()
1588 	} else if (!splice && file_in->f_op->remap_file_range && samesb) {  in vfs_copy_file_range()
1589 		ret = file_in->f_op->remap_file_range(file_in, pos_in,  in vfs_copy_file_range()
1625 	ret = do_splice_direct(file_in, &pos_in, file_out, &pos_out,  in vfs_copy_file_range()
1629 		fsnotify_access(file_in);  in vfs_copy_file_range()
1778 int generic_file_rw_checks(struct file *file_in, struct file *file_out)  in generic_file_rw_checks()  argument
1780 	struct inode *inode_in = file_inode(file_in);  in generic_file_rw_checks()
1789 	if (!(file_in->f_mode & FMODE_READ) ||  in generic_file_rw_checks()