Re: [PATCH 3/3] io_uring: refactor io_sq_offload_create()

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On 7/23/21 11:36 AM, Jens Axboe wrote:
> On 7/23/21 11:32 AM, Jens Axboe wrote:
>> Outside of that, we're not submitting off release, only killing anything
>> pending. The only odd case there is iopoll, but that doesn't resubmit
>> here.
> 
> OK perhaps I'm wrong on this one - if we have a pending iopoll request,
> and we run into the rare case of needing resubmit, we are doing that off
> the release path and that should not happen. Hence it could potentially
> happen for iosched and/or low queue depth devices, if you are using a
> ring for pure polling. I'll patch that up.

Will send out two patches for this. Note that I don't see this being a
real issue, as we explicitly gave the ring fd to another task, and being
that this is purely for read/write, it would result in -EFAULT anyway.

-- 
Jens Axboe




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