This patch a set of new trace events to collect the speculative page fault event failures. Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Change-Id: I9dafba293edf40bdad4ae241d105ecdfb42579c1 Link: https://lore.kernel.org/lkml/1523975611-15978-20-git-send-email-ldufour@linux.vnet.ibm.com/ Bug: 161210518 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>