Re: [PATCH] io_uring: fix mm use with IORING_OP_{READ,WRITE}

[Jens Axboe]

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.

-- 
Jens Axboe