ki_hint_validate 1456 fs/aio.c       	req->ki_hint = ki_hint_validate(file_write_hint(req->ki_filp));
ki_hint_validate 1104 fs/io_uring.c  	kiocb->ki_hint = ki_hint_validate(file_write_hint(kiocb->ki_filp));
ki_hint_validate 2077 include/linux/fs.h 		.ki_hint = ki_hint_validate(file_write_hint(filp)),