Re: IORING_OP_CLOSE fails on fd opened with O_PATH

Jens Axboe
2020-05-31T20:19:56Z

On 5/31/20 8:46 AM, Jens Axboe wrote:
> On 5/31/20 6:47 AM, Clay Harris wrote:
>> Tested on kernel 5.6.14
>>
>> $ ./closetest closetest.c
>>
>> path closetest.c open on fd 3 with O_RDONLY
>> ---- io_uring close(3)
>> ---- ordinary close(3)
>> ordinary close(3) failed, errno 9: Bad file descriptor
>>
>>
>> $ ./closetest closetest.c opath
>>
>> path closetest.c open on fd 3 with O_PATH
>> ---- io_uring close(3)
>> io_uring close() failed, errno 9: Bad file descriptor
>> ---- ordinary close(3)
>> ordinary close(3) returned 0
>
> Can you include the test case, please? Should be an easy fix, but no
> point rewriting a test case if I can avoid it...

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

--
Jens Axboe