Re: IORING_OP_CLOSE fails on fd opened with O_PATH

Jens Axboe
2020-06-02T18:42:31Z

On 6/2/20 12:22 PM, Jann Horn wrote:
> On Sun, May 31, 2020 at 10:19 PM Jens Axboe <axboe@kernel.dk> wrote:
>> We just need this ported to stable once it goes into 5.8-rc:
>>
>> https://git.kernel.dk/cgit/linux-block/commit/?h=for-5.8/io_uring&id=904fbcb115c85090484dfdffaf7f461d96fe8e53
>
> How does that work? Who guarantees that the close operation can't drop
> the refcount of the uring instance to zero before reaching the fdput()
> in io_uring_enter?

Because io_uring_enter() holds a reference to it as well?

--
Jens Axboe