Merge tag 'core_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull rseq fix from Borislav Petkov:

 - Prevent a lockup when rseq grants a timeslice extension

* tag 'core_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rseq: Prevent hard lockup on granted time slice extension