59 files changed, 184 insertions, 70 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 0061ea26306..cd40aba6aa9 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -31,6 +31,7 @@
 #include <linux/module.h>
 #include <linux/dmi.h>
 #include <linux/irq.h>
+#include <linux/slab.h>
 #include <linux/bootmem.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 3a4bf35c179..1a160d5d44d 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -8,6 +8,7 @@
 #include <linux/vmalloc.h>
 #include <linux/memory.h>
 #include <linux/stop_machine.h>
+#include <linux/slab.h>
 #include <asm/alternative.h>
 #include <asm/sections.h>
 #include <asm/pgtable.h>
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index adb0ba02570..f3dadb571d9 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -18,8 +18,8 @@
  */
 
 #include <linux/pci.h>
-#include <linux/gfp.h>
 #include <linux/bitmap.h>
+#include <linux/slab.h>
 #include <linux/debugfs.h>
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 9dc91b43147..42f5350b908 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -19,8 +19,8 @@
 
 #include <linux/pci.h>
 #include <linux/acpi.h>
-#include <linux/gfp.h>
 #include <linux/list.h>
+#include <linux/slab.h>
 #include <linux/sysdev.h>
 #include <linux/interrupt.h>
 #include <linux/msi.h>
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 4b7099526d2..ff469e47005 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -33,6 +33,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/sysdev.h>
+#include <linux/slab.h>
 #include <linux/pm.h>
 #include <linux/pci.h>
 #include <linux/sfi.h>
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 00187f1fcfb..e5a4a1e0161 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1640,8 +1640,10 @@ int __init APIC_init_uniprocessor(void)
         }
 #endif
 
+#ifndef CONFIG_SMP
         enable_IR_x2apic();
         default_setup_apic_routing();
+#endif
 
         verify_local_APIC();
         connect_bsp_APIC();
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index dd2b5f26464..03ba1b895f5 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -42,6 +42,7 @@
 #include <linux/errno.h>
 #include <linux/acpi.h>
 #include <linux/init.h>
+#include <linux/gfp.h>
 #include <linux/nmi.h>
 #include <linux/smp.h>
 #include <linux/io.h>
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 463de9a858a..127b8718abf 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -36,6 +36,7 @@
 #include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/jiffies.h>      /* time_after() */
+#include <linux/slab.h>
 #ifdef CONFIG_ACPI
 #include <acpi/acpi_bus.h>
 #endif
diff --git a/arch/x86/kernel/apic/nmi.c b/arch/x86/kernel/apic/nmi.c
index 8aa65adbd25..1edaf15c0b8 100644
--- a/arch/x86/kernel/apic/nmi.c
+++ b/arch/x86/kernel/apic/nmi.c
@@ -18,6 +18,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/sysdev.h>
 #include <linux/sysctl.h>
 #include <linux/percpu.h>
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 49dbeaef2a2..c085d52dbaf 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -17,6 +17,7 @@
 #include <linux/ctype.h>
 #include <linux/sched.h>
 #include <linux/timer.h>
+#include <linux/slab.h>
 #include <linux/cpu.h>
 #include <linux/init.h>
 #include <linux/io.h>
diff --git a/arch/x86/kernel/bootflag.c b/arch/x86/kernel/bootflag.c
index 30f25a75fe2..5de7f4c5697 100644
--- a/arch/x86/kernel/bootflag.c
+++ b/arch/x86/kernel/bootflag.c
@@ -5,7 +5,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/string.h>
-#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/acpi.h>
 #include <asm/io.h>
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 1b1920fa7c8..459168083b7 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -33,6 +33,7 @@
 #include <linux/cpufreq.h>
 #include <linux/compiler.h>
 #include <linux/dmi.h>
+#include <linux/slab.h>
 #include <trace/events/power.h>
 
 #include <linux/acpi.h>
diff --git a/arch/x86/kernel/cpu/cpufreq/elanfreq.c b/arch/x86/kernel/cpu/cpufreq/elanfreq.c
index 006b278b0d5..c587db472a7 100644
--- a/arch/x86/kernel/cpu/cpufreq/elanfreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/elanfreq.c
@@ -20,7 +20,6 @@
 #include <linux/module.h>
 #include <linux/init.h>
 
-#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/cpufreq.h>
 
diff --git a/arch/x86/kernel/cpu/cpufreq/gx-suspmod.c b/arch/x86/kernel/cpu/cpufreq/gx-suspmod.c
index ac27ec2264d..16e3483be9e 100644
--- a/arch/x86/kernel/cpu/cpufreq/gx-suspmod.c
+++ b/arch/x86/kernel/cpu/cpufreq/gx-suspmod.c
@@ -80,6 +80,7 @@
 #include <linux/cpufreq.h>
 #include <linux/pci.h>
 #include <linux/errno.h>
+#include <linux/slab.h>
 
 #include <asm/processor-cyrix.h>
 
diff --git a/arch/x86/kernel/cpu/cpufreq/longrun.c b/arch/x86/kernel/cpu/cpufreq/longrun.c
index da5f70fcb76..e7b559d74c5 100644
--- a/arch/x86/kernel/cpu/cpufreq/longrun.c
+++ b/arch/x86/kernel/cpu/cpufreq/longrun.c
@@ -9,7 +9,6 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/slab.h>
 #include <linux/cpufreq.h>
 #include <linux/timex.h>
 
diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
index 86961519372..7b8a8ba67b0 100644
--- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
@@ -25,7 +25,6 @@
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/cpufreq.h>
-#include <linux/slab.h>
 #include <linux/cpumask.h>
 #include <linux/timex.h>
 
diff --git a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
index ff36d2979a9..ce7cde713e7 100644
--- a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
@@ -30,6 +30,7 @@
 #include <linux/sched.h>
 #include <linux/cpufreq.h>
 #include <linux/compiler.h>
+#include <linux/slab.h>
 
 #include <linux/acpi.h>
 #include <linux/io.h>
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c b/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
index cb01dac267d..b3379d6a5c5 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
@@ -13,7 +13,6 @@
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 #include <linux/ioport.h>
-#include <linux/slab.h>
 #include <linux/timex.h>
 #include <linux/io.h>
 
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
index 8d672ef162c..9b1ff37de46 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -20,6 +20,7 @@
 #include <linux/sched.h>        /* current */
 #include <linux/delay.h>
 #include <linux/compiler.h>
+#include <linux/gfp.h>
 
 #include <asm/msr.h>
 #include <asm/processor.h>
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
index 2ce8e0b5cc5..561758e9518 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
@@ -23,7 +23,6 @@
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 #include <linux/pci.h>
-#include <linux/slab.h>
 #include <linux/sched.h>
 
 #include "speedstep-lib.h"
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
index ad0083abfa2..a94ec6be69f 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
@@ -13,7 +13,6 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
-#include <linux/slab.h>
 
 #include <asm/msr.h>
 #include <asm/tsc.h>
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
index 04d73c114e4..8abd869baab 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
@@ -17,7 +17,6 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
-#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <asm/ist.h>
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index 73734baa50f..e7dbde7bfed 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c
@@ -22,6 +22,7 @@
 #include <linux/kdebug.h>
 #include <linux/cpu.h>
 #include <linux/sched.h>
+#include <linux/gfp.h>
 #include <asm/mce.h>
 #include <asm/apic.h>
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 3ab9c886b61..8a6f0afa767 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -26,6 +26,7 @@
 #include <linux/sched.h>
 #include <linux/sysfs.h>
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/kmod.h>
 #include <linux/poll.h>
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index cda932ca3ad..224392d8fe8 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -21,6 +21,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sysfs.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/cpu.h>
 #include <linux/smp.h>
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index d15df6e49bf..62b48e40920 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -5,6 +5,7 @@
  * Author: Andi Kleen
  */
 
+#include <linux/gfp.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/percpu.h>
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 9aa5dc76ff4..fd31a441c61 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -6,7 +6,6 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/mm.h>
 
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index e006e56f699..79289632cb2 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/ctype.h>
 #include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 
 #define LINE_SIZE 80
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 60398a0d947..db5bdc8addf 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -21,6 +21,7 @@
 #include <linux/kdebug.h>
 #include <linux/sched.h>
 #include <linux/uaccess.h>
+#include <linux/slab.h>
 #include <linux/highmem.h>
 #include <linux/cpu.h>
 #include <linux/bitops.h>
@@ -28,6 +29,7 @@
 #include <asm/apic.h>
 #include <asm/stacktrace.h>
 #include <asm/nmi.h>
+#include <asm/compat.h>
 
 static u64 perf_event_mask __read_mostly;
 
@@ -158,7 +160,7 @@ struct x86_pmu {
                                                  struct perf_event *event);
         struct event_constraint *event_constraints;
 
-        void            (*cpu_prepare)(int cpu);
+        int             (*cpu_prepare)(int cpu);
         void            (*cpu_starting)(int cpu);
         void            (*cpu_dying)(int cpu);
         void            (*cpu_dead)(int cpu);
@@ -1333,11 +1335,12 @@ static int __cpuinit
 x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
 {
         unsigned int cpu = (long)hcpu;
+        int ret = NOTIFY_OK;
 
         switch (action & ~CPU_TASKS_FROZEN) {
         case CPU_UP_PREPARE:
                 if (x86_pmu.cpu_prepare)
-                        x86_pmu.cpu_prepare(cpu);
+                        ret = x86_pmu.cpu_prepare(cpu);
                 break;
 
         case CPU_STARTING:
@@ -1350,6 +1353,7 @@ x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
                         x86_pmu.cpu_dying(cpu);
                 break;
 
+        case CPU_UP_CANCELED:
         case CPU_DEAD:
                 if (x86_pmu.cpu_dead)
                         x86_pmu.cpu_dead(cpu);
@@ -1359,7 +1363,7 @@ x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
                 break;
         }
 
-        return NOTIFY_OK;
+        return ret;
 }
 
 static void __init pmu_check_apic(void)
@@ -1628,14 +1632,42 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
         return len;
 }
 
-static int copy_stack_frame(const void __user *fp, struct stack_frame *frame)
+#ifdef CONFIG_COMPAT
+static inline int
+perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry *entry)
 {
-        unsigned long bytes;
+        /* 32-bit process in 64-bit kernel. */
+        struct stack_frame_ia32 frame;
+        const void __user *fp;
 
-        bytes = copy_from_user_nmi(frame, fp, sizeof(*frame));
+        if (!test_thread_flag(TIF_IA32))
+                return 0;
+
+        fp = compat_ptr(regs->bp);
+        while (entry->nr < PERF_MAX_STACK_DEPTH) {
+                unsigned long bytes;
+                frame.next_frame     = 0;
+                frame.return_address = 0;
+
+                bytes = copy_from_user_nmi(&frame, fp, sizeof(frame));
+                if (bytes != sizeof(frame))
+                        break;
+
+                if (fp < compat_ptr(regs->sp))
+                        break;
 
-        return bytes == sizeof(*frame);
+                callchain_store(entry, frame.return_address);
+                fp = compat_ptr(frame.next_frame);
+        }
+        return 1;
+}
+#else
+static inline int
+perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry *entry)
+{
+    return 0;
 }
+#endif
 
 static void
 perf_callchain_user(struct pt_regs *regs, struct perf_callchain_entry *entry)
@@ -1651,11 +1683,16 @@ perf_callchain_user(struct pt_regs *regs, struct perf_callchain_entry *entry)
         callchain_store(entry, PERF_CONTEXT_USER);
         callchain_store(entry, regs->ip);
 
+        if (perf_callchain_user32(regs, entry))
+                return;
+
         while (entry->nr < PERF_MAX_STACK_DEPTH) {
+                unsigned long bytes;
                 frame.next_frame             = NULL;
                 frame.return_address = 0;
 
-                if (!copy_stack_frame(fp, &frame))
+                bytes = copy_from_user_nmi(&frame, fp, sizeof(frame));
+                if (bytes != sizeof(frame))
                         break;
 
                 if ((unsigned long)fp < regs->sp)
@@ -1702,7 +1739,6 @@ struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
         return entry;
 }
 
-#ifdef CONFIG_EVENT_TRACING
 void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip)
 {
         regs->ip = ip;
@@ -1714,4 +1750,3 @@ void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int ski
         regs->cs = __KERNEL_CS;
         local_save_flags(regs->flags);
 }
-#endif
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index b87e0b6970c..db6f7d4056e 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -137,6 +137,13 @@ static inline int amd_is_nb_event(struct hw_perf_event *hwc)
         return (hwc->config & 0xe0) == 0xe0;
 }
 
+static inline int amd_has_nb(struct cpu_hw_events *cpuc)
+{
+        struct amd_nb *nb = cpuc->amd_nb;
+
+        return nb && nb->nb_id != -1;
+}
+
 static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
                                       struct perf_event *event)
 {
@@ -147,7 +154,7 @@ static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
         /*
          * only care about NB events
          */
-        if (!(nb && amd_is_nb_event(hwc)))
+        if (!(amd_has_nb(cpuc) && amd_is_nb_event(hwc)))
                 return;
 
         /*
@@ -214,7 +221,7 @@ amd_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
         /*
          * if not NB event or no NB, then no constraints
          */
-        if (!(nb && amd_is_nb_event(hwc)))
+        if (!(amd_has_nb(cpuc) && amd_is_nb_event(hwc)))
                 return &unconstrained;
 
         /*
@@ -293,51 +300,55 @@ static struct amd_nb *amd_alloc_nb(int cpu, int nb_id)
         return nb;
 }
 
-static void amd_pmu_cpu_online(int cpu)
+static int amd_pmu_cpu_prepare(int cpu)
+{
+        struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+
+        WARN_ON_ONCE(cpuc->amd_nb);
+
+        if (boot_cpu_data.x86_max_cores < 2)
+                return NOTIFY_OK;
+
+        cpuc->amd_nb = amd_alloc_nb(cpu, -1);
+        if (!cpuc->amd_nb)
+                return NOTIFY_BAD;
+
+        return NOTIFY_OK;
+}
+
+static void amd_pmu_cpu_starting(int cpu)
 {
-        struct cpu_hw_events *cpu1, *cpu2;
-        struct amd_nb *nb = NULL;
+        struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+        struct amd_nb *nb;
         int i, nb_id;
 
         if (boot_cpu_data.x86_max_cores < 2)
                 return;
 
-        /*
-         * function may be called too early in the
-         * boot process, in which case nb_id is bogus
-         */
         nb_id = amd_get_nb_id(cpu);
-        if (nb_id == BAD_APICID)
-                return;
-
-        cpu1 = &per_cpu(cpu_hw_events, cpu);
-        cpu1->amd_nb = NULL;
+        WARN_ON_ONCE(nb_id == BAD_APICID);
 
         raw_spin_lock(&amd_nb_lock);
 
         for_each_online_cpu(i) {
-                cpu2 = &per_cpu(cpu_hw_events, i);
-                nb = cpu2->amd_nb;
-                if (!nb)
+                nb = per_cpu(cpu_hw_events, i).amd_nb;
+                if (WARN_ON_ONCE(!nb))
                         continue;
-                if (nb->nb_id == nb_id)
-                        goto found;
-        }
 
-        nb = amd_alloc_nb(cpu, nb_id);
-        if (!nb) {
-                pr_err("perf_events: failed NB allocation for CPU%d\n", cpu);
-                raw_spin_unlock(&amd_nb_lock);
-                return;
+                if (nb->nb_id == nb_id) {
+                        kfree(cpuc->amd_nb);
+                        cpuc->amd_nb = nb;
+                        break;
+                }
         }
-found:
-        nb->refcnt++;
-        cpu1->amd_nb = nb;
+
+        cpuc->amd_nb->nb_id = nb_id;
+        cpuc->amd_nb->refcnt++;
 
         raw_spin_unlock(&amd_nb_lock);
 }
 
-static void amd_pmu_cpu_offline(int cpu)
+static void amd_pmu_cpu_dead(int cpu)
 {
         struct cpu_hw_events *cpuhw;
 
@@ -349,8 +360,10 @@ static void amd_pmu_cpu_offline(int cpu)
         raw_spin_lock(&amd_nb_lock);
 
         if (cpuhw->amd_nb) {
-                if (--cpuhw->amd_nb->refcnt == 0)
-                        kfree(cpuhw->amd_nb);
+                struct amd_nb *nb = cpuhw->amd_nb;
+
+                if (nb->nb_id == -1 || --nb->refcnt == 0)
+                        kfree(nb);
 
                 cpuhw->amd_nb = NULL;
         }
@@ -379,8 +392,9 @@ static __initconst struct x86_pmu amd_pmu = {
         .get_event_constraints  = amd_get_event_constraints,
         .put_event_constraints  = amd_put_event_constraints,
 
-        .cpu_prepare            = amd_pmu_cpu_online,
-        .cpu_dead               = amd_pmu_cpu_offline,
+        .cpu_prepare            = amd_pmu_cpu_prepare,
+        .cpu_starting           = amd_pmu_cpu_starting,
+        .cpu_dead               = amd_pmu_cpu_dead,
 };
 
 static __init int amd_pmu_init(void)
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 84bfde64a33..9c794ac8783 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -936,6 +936,7 @@ static __init int intel_pmu_init(void)
 
         case 26: /* 45 nm nehalem, "Bloomfield" */
         case 30: /* 45 nm nehalem, "Lynnfield" */
+        case 46: /* 45 nm nehalem-ex, "Beckton" */
                 memcpy(hw_cache_event_ids, nehalem_hw_cache_event_ids,
                        sizeof(hw_cache_event_ids));
 
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 83e5e628de7..8b862d5900f 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -40,6 +40,7 @@
 #include <linux/cpu.h>
 #include <linux/notifier.h>
 #include <linux/uaccess.h>
+#include <linux/gfp.h>
 
 #include <asm/processor.h>
 #include <asm/msr.h>
diff --git a/arch/x86/kernel/crash_dump_32.c b/arch/x86/kernel/crash_dump_32.c
index cd97ce18c29..67414550c3c 100644
--- a/arch/x86/kernel/crash_dump_32.c
+++ b/arch/x86/kernel/crash_dump_32.c
@@ -5,6 +5,7 @@
  *      Copyright (C) IBM Corporation, 2004. All rights reserved
  */
 
+#include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/highmem.h>
 #include <linux/crash_dump.h>
diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h
index 29e5f7c845b..e39e77168a3 100644
--- a/arch/x86/kernel/dumpstack.h
+++ b/arch/x86/kernel/dumpstack.h
@@ -30,6 +30,11 @@ struct stack_frame {
         unsigned long return_address;
 };
 
+struct stack_frame_ia32 {
+    u32 next_frame;
+    u32 return_address;
+};
+
 static inline unsigned long rewind_frame_pointer(int n)
 {
         struct stack_frame *frame;
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 740b440fbd7..7bca3c6a02f 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -519,29 +519,45 @@ u64 __init e820_remove_range(u64 start, u64 size, unsigned old_type,
         printk(KERN_DEBUG "e820 remove range: %016Lx - %016Lx ",
                        (unsigned long long) start,
                        (unsigned long long) end);
-        e820_print_type(old_type);
+        if (checktype)
+                e820_print_type(old_type);
         printk(KERN_CONT "\n");
 
         for (i = 0; i < e820.nr_map; i++) {
                 struct e820entry *ei = &e820.map[i];
                 u64 final_start, final_end;
+                u64 ei_end;
 
                 if (checktype && ei->type != old_type)
                         continue;
+
+                ei_end = ei->addr + ei->size;
                 /* totally covered? */
-                if (ei->addr >= start &&
-                    (ei->addr + ei->size) <= (start + size)) {
+                if (ei->addr >= start && ei_end <= end) {
                         real_removed_size += ei->size;
                         memset(ei, 0, sizeof(struct e820entry));
                         continue;
                 }
+
+                /* new range is totally covered? */
+                if (ei->addr < start && ei_end > end) {
+                        e820_add_region(end, ei_end - end, ei->type);
+                        ei->size = start - ei->addr;
+                        real_removed_size += size;
+                        continue;
+                }
+
                 /* partially covered */
                 final_start = max(start, ei->addr);
-                final_end = min(start + size, ei->addr + ei->size);
+                final_end = min(end, ei_end);
                 if (final_start >= final_end)
                         continue;
                 real_removed_size += final_end - final_start;
 
+                /*
+                 * left range could be head or tail, so need to update
+                 * size at first.
+                 */
                 ei->size -= final_end - final_start;
                 if (ei->addr < final_start)
                         continue;
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index ee4fa1bfcb3..23b4ecdffa9 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -4,6 +4,7 @@
 #include <linux/sysdev.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
+#include <linux/slab.h>
 #include <linux/hpet.h>
 #include <linux/init.h>
 #include <linux/cpu.h>
@@ -399,9 +400,15 @@ static int hpet_next_event(unsigned long delta,
          * then we might have a real hardware problem. We can not do
          * much about it here, but at least alert the user/admin with
          * a prominent warning.
+         * An erratum on some chipsets (ICH9,..), results in comparator read
+         * immediately following a write returning old value. Workaround
+         * for this is to read this value second time, when first
+         * read returns old value.
          */
-        WARN_ONCE(hpet_readl(HPET_Tn_CMP(timer)) != cnt,
+        if (unlikely((u32)hpet_readl(HPET_Tn_CMP(timer)) != cnt)) {
+                WARN_ONCE(hpet_readl(HPET_Tn_CMP(timer)) != cnt,
                   KERN_WARNING "hpet: compare register read back failed.\n");
+        }
 
         return (s32)(hpet_readl(HPET_COUNTER) - cnt) >= 0 ? -ETIME : 0;
 }
@@ -1143,6 +1150,7 @@ int hpet_set_periodic_freq(unsigned long freq)
                 do_div(clc, freq);
                 clc >>= hpet_clockevent.shift;
                 hpet_pie_delta = clc;
+                hpet_pie_limit = 0;
         }
         return 1;
 }
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index c01a2b846d4..54c31c28548 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/regset.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 
 #include <asm/sigcontext.h>
 #include <asm/processor.h>
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index fb725ee15f5..7c9f02c130f 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -5,7 +5,6 @@
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/timex.h>
-#include <linux/slab.h>
 #include <linux/random.h>
 #include <linux/init.h>
 #include <linux/kernel_stat.h>
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index f01d390f9c5..0ed2d300cd4 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -5,7 +5,6 @@
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/timex.h>
-#include <linux/slab.h>
 #include <linux/random.h>
 #include <linux/kprobes.h>
 #include <linux/init.h>
diff --git a/arch/x86/kernel/k8.c b/arch/x86/kernel/k8.c
index 9b895464dd0..0f7bc20cfcd 100644
--- a/arch/x86/kernel/k8.c
+++ b/arch/x86/kernel/k8.c
@@ -2,8 +2,8 @@
  * Shared support code for AMD K8 northbridges and derivates.
  * Copyright 2006 Andi Kleen, SUSE Labs. Subject to GPLv2.
  */
-#include <linux/gfp.h>
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/module.h>
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index e444357375c..8afd9f321f1 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -9,6 +9,7 @@
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/stat.h>
 #include <linux/io.h>
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index bfba6019d76..b2258ca9100 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -618,8 +618,8 @@ int kgdb_arch_init(void)
          * portion of kgdb because this operation requires mutexs to
          * complete.
          */
+        hw_breakpoint_init(&attr);
         attr.bp_addr = (unsigned long)kgdb_arch_init;
-        attr.type = PERF_TYPE_BREAKPOINT;
         attr.bp_len = HW_BREAKPOINT_LEN_1;
         attr.bp_type = HW_BREAKPOINT_W;
         attr.disabled = 1;
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index ec6ef60cbd1..ea697263b37 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/errno.h>
+#include <linux/gfp.h>
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/mm.h>
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 4a8bb82248a..035c8c52918 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -9,6 +9,7 @@
 #include <linux/mm.h>
 #include <linux/kexec.h>
 #include <linux/string.h>
+#include <linux/gfp.h>
 #include <linux/reboot.h>
 #include <linux/numa.h>
 #include <linux/ftrace.h>
diff --git a/arch/x86/kernel/mca_32.c b/arch/x86/kernel/mca_32.c
index 845d80ce1ef..63eaf659623 100644
--- a/arch/x86/kernel/mca_32.c
+++ b/arch/x86/kernel/mca_32.c
@@ -42,6 +42,7 @@
 #include <linux/kernel.h>
 #include <linux/mca.h>
 #include <linux/kprobes.h>
+#include <linux/slab.h>
 #include <asm/system.h>
 #include <asm/io.h>
 #include <linux/proc_fs.h>
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 89f386f044e..e0bc186d750 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/bug.h>
 #include <linux/mm.h>
+#include <linux/gfp.h>
 
 #include <asm/system.h>
 #include <asm/page.h>
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index a2c1edd2d3a..e81030f71a8 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -664,7 +664,7 @@ static void __init smp_reserve_memory(struct mpf_intel *mpf)
 {
         unsigned long size = get_mpc_size(mpf->physptr);
 
-        reserve_early(mpf->physptr, mpf->physptr+size, "MP-table mpc");
+        reserve_early_overlap_ok(mpf->physptr, mpf->physptr+size, "MP-table mpc");
 }
 
 static int __init smp_scan_config(unsigned long base, unsigned long length)
@@ -693,7 +693,7 @@ static int __init smp_scan_config(unsigned long base, unsigned long length)
                                mpf, (u64)virt_to_phys(mpf));
 
                         mem = virt_to_phys(mpf);
-                        reserve_early(mem, mem + sizeof(*mpf), "MP-table mpf");
+                        reserve_early_overlap_ok(mem, mem + sizeof(*mpf), "MP-table mpf");
                         if (mpf->physptr)
                                 smp_reserve_memory(mpf);
 
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 206735ac8cb..4d4468e9f47 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -37,6 +37,7 @@
 #include <linux/cpu.h>
 #include <linux/notifier.h>
 #include <linux/uaccess.h>
+#include <linux/gfp.h>
 
 #include <asm/processor.h>
 #include <asm/msr.h>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index a4ac764a688..4b7e3d8b01d 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -2,6 +2,7 @@
 #include <linux/dma-debug.h>
 #include <linux/dmar.h>
 #include <linux/bootmem.h>
+#include <linux/gfp.h>
 #include <linux/pci.h>
 #include <linux/kmemleak.h>
 
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index f3af115a573..68cd24f9dea 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -29,6 +29,7 @@
 #include <linux/iommu-helper.h>
 #include <linux/sysdev.h>
 #include <linux/io.h>
+#include <linux/gfp.h>
 #include <asm/atomic.h>
 #include <asm/mtrr.h>
 #include <asm/pgtable.h>
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 22be12b60a8..3af4af810c0 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -4,6 +4,7 @@
 #include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <linux/init.h>
+#include <linux/gfp.h>
 #include <linux/pci.h>
 #include <linux/mm.h>
 
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index a503b1fd04e..2e9b55027b7 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -12,6 +12,7 @@
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
+#include <linux/slab.h>
 #include <linux/ptrace.h>
 #include <linux/regset.h>
 #include <linux/tracehook.h>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d76e18570c6..c4851eff57b 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -55,7 +55,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/delay.h>
 
@@ -608,6 +607,16 @@ static int __init setup_elfcorehdr(char *arg)
 early_param("elfcorehdr", setup_elfcorehdr);
 #endif
 
+static __init void reserve_ibft_region(void)
+{
+        unsigned long addr, size = 0;
+
+        addr = find_ibft_region(&size);
+
+        if (size)
+                reserve_early_overlap_ok(addr, addr + size, "ibft");
+}
+
 #ifdef CONFIG_X86_RESERVE_LOW_64K
 static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
 {
@@ -910,6 +919,8 @@ void __init setup_arch(char **cmdline_p)
          */
         find_smp_config();
 
+        reserve_ibft_region();
+
         reserve_trampoline_memory();
 
 #ifdef CONFIG_ACPI_SLEEP
@@ -977,8 +988,6 @@ void __init setup_arch(char **cmdline_p)
 
         dma32_reserve_bootmem();
 
-        reserve_ibft_region();
-
 #ifdef CONFIG_KVM_CLOCK
         kvmclock_init();
 #endif
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index ec1de97600e..d801210945d 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -21,6 +21,7 @@
 #include <linux/cache.h>
 #include <linux/interrupt.h>
 #include <linux/cpu.h>
+#include <linux/gfp.h>
 
 #include <asm/mtrr.h>
 #include <asm/tlbflush.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 06d98ae5a80..763d815e27a 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -49,6 +49,7 @@
 #include <linux/nmi.h>
 #include <linux/tboot.h>
 #include <linux/stackprotector.h>
+#include <linux/gfp.h>
 
 #include <asm/acpi.h>
 #include <asm/desc.h>
@@ -242,8 +243,6 @@ static void __cpuinit smp_callin(void)
         end_local_APIC_setup();
         map_cpu_to_logical_apicid();
 
-        notify_cpu_starting(cpuid);
-
         /*
          * Need to setup vector mappings before we enable interrupts.
          */
@@ -264,6 +263,8 @@ static void __cpuinit smp_callin(void)
          */
         smp_store_cpu_info(cpuid);
 
+        notify_cpu_starting(cpuid);
+
         /*
          * Allow the master to continue.
          */
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index 364d015efeb..17b03dd3a6b 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -9,6 +9,7 @@
 #include <linux/seq_file.h>
 #include <linux/proc_fs.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 
 #include <asm/mmu_context.h>
 #include <asm/uv/uv.h>
diff --git a/arch/x86/kernel/uv_irq.c b/arch/x86/kernel/uv_irq.c
index ece73d8e324..1d40336b030 100644
--- a/arch/x86/kernel/uv_irq.c
+++ b/arch/x86/kernel/uv_irq.c
@@ -10,6 +10,7 @@
 
 #include <linux/module.h>
 #include <linux/rbtree.h>
+#include <linux/slab.h>
 #include <linux/irq.h>
 
 #include <asm/apic.h>
diff --git a/arch/x86/kernel/uv_time.c b/arch/x86/kernel/uv_time.c
index 2b75ef638db..56e421bc379 100644
--- a/arch/x86/kernel/uv_time.c
+++ b/arch/x86/kernel/uv_time.c
@@ -19,6 +19,7 @@
  *  Copyright (c) Dimitri Sivanich
  */
 #include <linux/clockchips.h>
+#include <linux/slab.h>
 
 #include <asm/uv/uv_mmrs.h>
 #include <asm/uv/uv_hub.h>
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 7dd599deca4..ce9fbacb752 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -28,6 +28,7 @@
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/sched.h>
+#include <linux/gfp.h>
 #include <asm/vmi.h>
 #include <asm/io.h>
 #include <asm/fixmap.h>