Fix more test-errno issues

  This patch fixes some test-errno-linux unexpected returns for the
tested syscalls on some older kernels (I saw it on a Linux 3.8 on
armv7l).  Basically:

   - inotify_add_watch: Linux v3.8 (676a0675c) removed the test to
     check at least one valid bit in flags (to return EINVAL).  It
     was later added back in v3.9 (04df32fa1).

   - quotactl: returns ENOSYS for kernels not configured with
     CONFIG_QUOTA.

Checked on x86_64-linux-gnu and armv7l-linux-gnueabihf.

	* sysdeps/unix/sysv/linux/test-errno-linux.c (do_test): Handle
	non expected inotify_add_watch and quotactl return.
---
 ChangeLog                                  | 5 +++++
 sysdeps/unix/sysv/linux/test-errno-linux.c | 9 +++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)
  

If no one opposes I will commit it shortly.

On 28/03/2017 16:47, Adhemerval Zanella wrote:
> This patch fixes some test-errno-linux unexpected returns for the
> tested syscalls on some older kernels (I saw it on a Linux 3.8 on
> armv7l).  Basically:
> 
>    - inotify_add_watch: Linux v3.8 (676a0675c) removed the test to
>      check at least one valid bit in flags (to return EINVAL).  It
>      was later added back in v3.9 (04df32fa1).
> 
>    - quotactl: returns ENOSYS for kernels not configured with
>      CONFIG_QUOTA.
> 
> Checked on x86_64-linux-gnu and armv7l-linux-gnueabihf.
> 
> 	* sysdeps/unix/sysv/linux/test-errno-linux.c (do_test): Handle
> 	non expected inotify_add_watch and quotactl return.
> ---
>  ChangeLog                                  | 5 +++++
>  sysdeps/unix/sysv/linux/test-errno-linux.c | 9 +++++++--
>  2 files changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/sysdeps/unix/sysv/linux/test-errno-linux.c b/sysdeps/unix/sysv/linux/test-errno-linux.c
> index 03a74bd..87ed103 100644
> --- a/sysdeps/unix/sysv/linux/test-errno-linux.c
> +++ b/sysdeps/unix/sysv/linux/test-errno-linux.c
> @@ -147,7 +147,10 @@ do_test (void)
>    fails |= test_wrp (EBADF, fdatasync, -1);
>    fails |= test_wrp (EBADF, flock, -1, LOCK_SH);
>    fails |= test_wrp (ESRCH, getpgid, -1);
> -  fails |= test_wrp (EINVAL, inotify_add_watch, -1, "/", 0);
> +  /* Linux v3.8 (676a0675c) removed the test to check at least one valid
> +     bit in flags (to return EINVAL).  It was later added back in v3.9
> +     (04df32fa1).  */
> +  fails |= test_wrp2 (EINVAL, EBADF, inotify_add_watch, -1, "/", 0);
>    fails |= test_wrp (EINVAL, mincore, (void *) -1, 0, vec);
>    /* mlock fails if the result of the addition addr+len was less than addr
>       (which indicates final address overflow), however on 32 bits binaries
> @@ -157,7 +160,9 @@ do_test (void)
>    fails |= test_wrp2 (EINVAL, ENOMEM, mlock, (void *) -1, 1);
>    fails |= test_wrp (EINVAL, nanosleep, &ts, &ts);
>    fails |= test_wrp (EINVAL, poll, &pollfd, -1, 0);
> -  fails |= test_wrp (ENODEV, quotactl, Q_GETINFO, NULL, -1, (caddr_t) &dqblk);
> +  /* quotactl returns ENOSYS for kernels not configured with CONFIG_QUOTA.  */
> +  fails |= test_wrp2 (ENODEV, ENOSYS, quotactl, Q_GETINFO, NULL, -1,
> +                     (caddr_t) &dqblk);
>    fails |= test_wrp (EINVAL, sched_getparam, -1, &sch_param);
>    fails |= test_wrp (EINVAL, sched_getscheduler, -1);
>    fails |= test_wrp (EINVAL, sched_get_priority_max, -1);
>
  

* Adhemerval Zanella:

> 	* sysdeps/unix/sysv/linux/test-errno-linux.c (do_test): Handle
> 	non expected inotify_add_watch and quotactl return.

Makes sense to me.  Thanks.