RFR: 8223699: cleanup perfMemory_aix.cpp O_NOFOLLOW coding on aix

[Doerr, Martin]

Hi Matthias,

I agree.

According to
https://wiki.openjdk.java.net/display/Build/Supported+Build+Platforms
we require AIX 7.1 for JDK11 and 7.2 since JDK13.

Early version of these AIX version were affected by the following O_NOFOLLOW issue:
https://bugs.openjdk.java.net/browse/JDK-8223701

But the affected Tech Levels have already reached "End of Service Pack Support":
https://www.ibm.com/support/pages/aix-support-lifecycle-information
Only AIX 7.1 TL5 and AIX 7.2 TL2 (and later) are still supported.

Change looks good.

Best regards,
Martin


> -----Original Message-----
> From: hotspot-dev <hotspot-dev-bounces at openjdk.java.net> On Behalf Of
> Baesken, Matthias
> Sent: Dienstag, 28. Januar 2020 09:23
> To: 'hotspot-dev at openjdk.java.net' <hotspot-dev at openjdk.java.net>
> Subject: RFR: 8223699: cleanup perfMemory_aix.cpp O_NOFOLLOW coding
> on aix
> 
> Hello, please review  this AIX specific cleanup.
> 
> In perfMemory_aix.cpp we still have O_NOFOLLOW related fallback coding
> for AIX version < 7.X.
> This is no longer needed, because we do not support any more AIX versions
> < 7.X in coming jdk13, so cleanup is possible.
> 
> 
> Bug/webrev :
> 
> https://bugs.openjdk.java.net/browse/JDK-8223699
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8223699.1/
> 
> 
> Thanks, Matthias