Description of problem:
I filed a bug against CentOS, have a look please ?
it might be originated from RHEL
Version-Release number of selected component (if applicable):
Steps to Reproduce:
This feature from kernel 4.2 was backported into the Red Hat Enterprise Linux 7 kernel with the 7.4 minor release, so we could add the constant to the glibc headers as well.
It is really just the constant itself, and it's included in upstream glibc already, so I'm setting the Patch keyword.
Verified with the reproducer from https://bugs.centos.org/view.php?id=14828, the bug has been fixed in glibc-2.17-299.el7.