Re: [LTP] [PATCH 2/2] io_uring.h: Remove io_uring_setup_supported_by_kernel()

[zhaogongyi via ltp <ltp@lists.linux.it>]

Hi Cyril,

> Hi!
> > diff --git a/include/lapi/io_uring.h b/include/lapi/io_uring.h index
> > 397324511..43d28f74a 100644
> > --- a/include/lapi/io_uring.h
> > +++ b/include/lapi/io_uring.h
> > @@ -297,14 +297,22 @@ static inline int io_uring_enter(int fd,
> > unsigned int to_submit,  static inline void
> > io_uring_setup_supported_by_kernel(void)
> >  {
> >         long ret;
> > +
> > +       ret = syscall(__NR_io_uring_setup, NULL, 0);
> > +
> > +       if (ret != -1) {
> > +               SAFE_CLOSE(ret);
> > +               return;
> > +       }
> > +
> >         if ((tst_kvercmp(5, 1, 0)) < 0) {
> > -               ret = syscall(__NR_io_uring_setup, NULL, 0);
> > -               if (ret != -1)
> > -                       SAFE_CLOSE(ret);
> > -               else if (errno == ENOSYS)
> > +               if (errno == ENOSYS)
> >                         tst_brk(TCONF,
> >                                 "Test not supported on kernel
> version < v5.1");
> >         }
> > +
> > +       if (errno == ENOSYS)
> 
> Based on your latest reply this should be EOPNOTSUPP.

The errno is ENOSYS when CONFIG_IO_URING is not set. My system is different with the linux upstream. 

Thanks, I have resubmit a new patch as your suggestion, please see: https://patchwork.ozlabs.org/project/ltp/patch/20220916015948.156798-1-zhaogongyi@huawei.com/


> 
> > +               tst_brk(TCONF, "CONFIG_IO_URING not set?");
> >  }
> >
> >
> > --
> > Cyril Hrubis
> > chrubis@suse.cz
> >
> > --
> > Mailing list info: https://lists.linux.it/listinfo/ltp
> 
> --
> Cyril Hrubis
> chrubis@suse.cz

-- 
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