On 05/02/2020 18:54, Jens Axboe wrote: > On 2/5/20 8:46 AM, Pavel Begunkov wrote: >> IORING_OP_{READ,WRITE} need mm to access user buffers, hence >> req->has_user check should go for them as well. Move the corresponding >> imports past the check. > > I'd need to double check, but I think the has_user check should just go. > The import checks for access anyway, so we'll -EFAULT there if we > somehow messed up and didn't acquire the right mm. > It'd be even better. I have plans to remove it, but I was thinking from a different angle. -- Pavel Begunkov