Please review the simple fix for the issue [JDK-8309591](https://bugs.openjdk.org/browse/JDK-8309591). In this issue sys call is incorrectly setting the socket option(TCP_QUICKACK) at wrong level(SOL_TCP). After fix all the existing tests are passing.
Note: I did the similar changes for AIX port as well but I don’t have AIX to test it locally. ------------- Commit messages: - JDK-8309591: Socket.setOption(TCP_QUICKACK) uses wrong level Changes: https://git.openjdk.org/jdk/pull/14671/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14671&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8309591 Stats: 7 lines in 2 files changed: 0 ins; 0 del; 7 mod Patch: https://git.openjdk.org/jdk/pull/14671.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14671/head:pull/14671 PR: https://git.openjdk.org/jdk/pull/14671
