Andi Lutomirski noticed that the current 3.19 code doesn't support32-bit binaries on 64-bit kernels, but that it is not explicitlydisabled.I've also noticed a small performance regression that MPX was causingin some circumstances. The fix is simple. include/asm/mmu_context.h | 20 +++++++++++++++++++- mm/mpx.c | 6 ++++++ 2 files changed, 25 insertions(+), 1 deletion(-)