Merge tag 'ras_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras...

Pull GHES changes for 4.2 from Borislav Petkov:

"GHES: Seriously speedup and cleanup NMI handler (Jiri Kosina and Borislav Petkov)

This is the result of us seeing this during boot

[   24.332560] INFO: NMI handler (ghes_notify_nmi) took too long to run: 3.265 msecs
[   24.332567] INFO: NMI handler (ghes_notify_nmi) took too long to run: 5.946 msecs
[   24.332568] INFO: NMI handler (ghes_notify_nmi) took too long to run: 5.948 msecs

and a report of people running perf stat and the machine softlocking.
"hest_disable" was helping in this case, which made us look at that
particular NMI handler. It was grabbing a lock each time it is run and
on each CPU. But this is not needed as the GHES sources are global and
they need only a single reader.

This patchset does that and cleans up the handler in the process."

* tag 'ras_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  GHES: Make NMI handler have a single reader
  GHES: Elliminate double-loop in the NMI handler
  GHES: Panic right after detection
  GHES: Carve out the panic functionality
  GHES: Carve out error queueing in a separate function