Re: IORING_OP_CLOSE fails on fd opened with O_PATH

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On Sun, May 31 2020 at 08:46:03 -0600, Jens Axboe quoth thus:

> 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...

Sure.  Here's a cleaned-up test program.
https://claycon.org/software/io_uring/tests/close_opath.c

> -- 
> Jens Axboe



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