Merge 'Linux v3.0' into Litmus

Some notes:
* Litmus^RT scheduling class is the topmost scheduling class
  (above stop_sched_class).
* scheduler_ipi() function (e.g., in smp_reschedule_interrupt())
  may increase IPI latencies.
* Added path into schedule() to quickly re-evaluate scheduling
  decision without becoming preemptive again. This used to be
  a standard path before the removal of BKL.

Conflicts:
	Makefile
	arch/arm/kernel/calls.S
	arch/arm/kernel/smp.c
	arch/x86/include/asm/unistd_32.h
	arch/x86/kernel/smp.c
	arch/x86/kernel/syscall_table_32.S
	include/linux/hrtimer.h
	kernel/printk.c
	kernel/sched.c
	kernel/sched_fair.c

1 files changed, 20 insertions, 24 deletions

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 6890dbb9ac15..d727f8f94333 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -24,28 +24,34 @@ endif
 nostackp := $(call cc-option, -fno-stack-protector)
 CFLAGS_vsyscall_64.o    := $(PROFILING) -g0 $(nostackp)
 CFLAGS_hpet.o           := $(nostackp)
-CFLAGS_tsc.o            := $(nostackp)
+CFLAGS_vread_tsc_64.o   := $(nostackp)
 CFLAGS_paravirt.o       := $(nostackp)
 GCOV_PROFILE_vsyscall_64.o      := n
 GCOV_PROFILE_hpet.o             := n
 GCOV_PROFILE_tsc.o              := n
+GCOV_PROFILE_vread_tsc_64.o     := n
 GCOV_PROFILE_paravirt.o         := n
 
+# vread_tsc_64 is hot and should be fully optimized:
+CFLAGS_REMOVE_vread_tsc_64.o = -pg -fno-optimize-sibling-calls
+
 obj-y                   := process_$(BITS).o signal.o entry_$(BITS).o
 obj-y                   += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
 obj-y                   += time.o ioport.o ldt.o dumpstack.o
-obj-y                   += setup.o x86_init.o i8259.o irqinit.o
-obj-$(CONFIG_X86_VISWS) += visws_quirks.o
-obj-$(CONFIG_X86_32)    += probe_roms_32.o
+obj-y                   += setup.o x86_init.o i8259.o irqinit.o jump_label.o
+obj-$(CONFIG_IRQ_WORK)  += irq_work.o
+obj-y                   += probe_roms.o
 obj-$(CONFIG_X86_32)    += sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)    += sys_x86_64.o x8664_ksyms_64.o
-obj-$(CONFIG_X86_64)    += syscall_64.o vsyscall_64.o
+obj-$(CONFIG_X86_64)    += syscall_64.o vsyscall_64.o vread_tsc_64.o
 obj-y                   += bootflag.o e820.o
-obj-y                   += pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
+obj-y                   += pci-dma.o quirks.o topology.o kdebugfs.o
 obj-y                   += alternative.o i8253.o pci-nommu.o hw_breakpoint.o
 obj-y                   += tsc.o io_delay.o rtc.o
+obj-y                   += pci-iommu_table.o
+obj-y                   += resource.o
 
-obj-$(CONFIG_X86_TRAMPOLINE)    += trampoline.o
+obj-y                           += trampoline.o trampoline_$(BITS).o
 obj-y                           += process.o
 obj-y                           += i387.o xsave.o
 obj-y                           += ptrace.o
@@ -53,11 +59,12 @@ obj-$(CONFIG_X86_32)		+= tls.o
 obj-$(CONFIG_IA32_EMULATION)    += tls.o
 obj-y                           += step.o
 obj-$(CONFIG_INTEL_TXT)         += tboot.o
+obj-$(CONFIG_ISA_DMA_API)       += i8237.o
 obj-$(CONFIG_STACKTRACE)        += stacktrace.o
 obj-y                           += cpu/
 obj-y                           += acpi/
-obj-$(CONFIG_SFI)               += sfi.o
 obj-y                           += reboot.o
+obj-$(CONFIG_X86_32)            += reboot_32.o
 obj-$(CONFIG_MCA)               += mca_32.o
 obj-$(CONFIG_X86_MSR)           += msr.o
 obj-$(CONFIG_X86_CPUID)         += cpuid.o
@@ -65,10 +72,9 @@ obj-$(CONFIG_PCI)		+= early-quirks.o
 apm-y                           := apm_32.o
 obj-$(CONFIG_APM)               += apm.o
 obj-$(CONFIG_SMP)               += smp.o
-obj-$(CONFIG_SMP)               += smpboot.o tsc_sync.o
+obj-$(CONFIG_SMP)               += smpboot.o
+obj-$(CONFIG_SMP)               += tsc_sync.o
 obj-$(CONFIG_SMP)               += setup_percpu.o
-obj-$(CONFIG_X86_64_SMP)        += tsc_sync.o
-obj-$(CONFIG_X86_TRAMPOLINE)    += trampoline_$(BITS).o
 obj-$(CONFIG_X86_MPPARSE)       += mpparse.o
 obj-y                           += apic/
 obj-$(CONFIG_X86_REBOOTFIXUPS)  += reboot_fixups_32.o
@@ -80,7 +86,6 @@ obj-$(CONFIG_KEXEC)		+= relocate_kernel_$(BITS).o crash.o
 obj-$(CONFIG_CRASH_DUMP)        += crash_dump_$(BITS).o
 obj-$(CONFIG_KPROBES)           += kprobes.o
 obj-$(CONFIG_MODULES)           += module.o
-obj-$(CONFIG_EFI)               += efi.o efi_$(BITS).o efi_stub_$(BITS).o
 obj-$(CONFIG_DOUBLEFAULT)       += doublefault_32.o
 obj-$(CONFIG_KGDB)              += kgdb.o
 obj-$(CONFIG_VM86)              += vm86_32.o
@@ -89,11 +94,10 @@ obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_HPET_TIMER)        += hpet.o
 obj-$(CONFIG_APB_TIMER)         += apb_timer.o
 
-obj-$(CONFIG_K8_NB)             += k8.o
+obj-$(CONFIG_AMD_NB)            += amd_nb.o
 obj-$(CONFIG_DEBUG_RODATA_TEST) += test_rodata.o
 obj-$(CONFIG_DEBUG_NX_TEST)     += test_nx.o
 
-obj-$(CONFIG_VMI)               += vmi_32.o vmiclock_32.o
 obj-$(CONFIG_KVM_GUEST)         += kvm.o
 obj-$(CONFIG_KVM_CLOCK)         += kvmclock.o
 obj-$(CONFIG_PARAVIRT)          += paravirt.o paravirt_patch_$(BITS).o
@@ -102,13 +106,6 @@ obj-$(CONFIG_PARAVIRT_CLOCK)	+= pvclock.o
 
 obj-$(CONFIG_PCSPKR_PLATFORM)   += pcspeaker.o
 
-obj-$(CONFIG_SCx200)            += scx200.o
-scx200-y                        += scx200_32.o
-
-obj-$(CONFIG_OLPC)              += olpc.o
-obj-$(CONFIG_OLPC_OPENFIRMWARE) += olpc_ofw.o
-obj-$(CONFIG_X86_MRST)          += mrst.o
-
 microcode-y                             := microcode_core.o
 microcode-$(CONFIG_MICROCODE_INTEL)     += microcode_intel.o
 microcode-$(CONFIG_MICROCODE_AMD)       += microcode_amd.o
@@ -117,17 +114,16 @@ obj-$(CONFIG_MICROCODE)			+= microcode.o
 obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
 
 obj-$(CONFIG_SWIOTLB)                   += pci-swiotlb.o
+obj-$(CONFIG_OF)                        += devicetree.o
 
 obj-$(CONFIG_FEATHER_TRACE)     += ft_event.o
 
 ###
 # 64 bit specific files
 ifeq ($(CONFIG_X86_64),y)
-        obj-$(CONFIG_X86_UV)            += tlb_uv.o bios_uv.o uv_irq.o uv_sysfs.o uv_time.o
-        obj-$(CONFIG_X86_PM_TIMER)      += pmtimer_64.o
         obj-$(CONFIG_AUDIT)             += audit_64.o
 
-        obj-$(CONFIG_GART_IOMMU)        += pci-gart_64.o aperture_64.o
+        obj-$(CONFIG_GART_IOMMU)        += amd_gart_64.o aperture_64.o
         obj-$(CONFIG_CALGARY_IOMMU)     += pci-calgary_64.o tce_64.o
         obj-$(CONFIG_AMD_IOMMU)         += amd_iommu_init.o amd_iommu.o