27 files changed, 114 insertions, 82 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index dcbec34154cf..52e18e6d2ba0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1508,13 +1508,13 @@ config PCI_GOMMCONFIG
 config PCI_GODIRECT
         bool "Direct"
 
-config PCI_GOANY
-        bool "Any"
-
 config PCI_GOOLPC
         bool "OLPC"
         depends on OLPC
 
+config PCI_GOANY
+        bool "Any"
+
 endchoice
 
 config PCI_BIOS
@@ -1531,9 +1531,8 @@ config PCI_MMCONFIG
         depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
 
 config PCI_OLPC
-        bool
-        depends on PCI && PCI_GOOLPC
-        default y
+        def_bool y
+        depends on PCI && OLPC && (PCI_GOOLPC || PCI_GOANY)
 
 config PCI_DOMAINS
         def_bool y
diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c
index 90943f83e84d..e01aafd03bde 100644
--- a/arch/x86/boot/a20.c
+++ b/arch/x86/boot/a20.c
@@ -115,8 +115,6 @@ static void enable_a20_fast(void)
 
 int enable_a20(void)
 {
-        int loops = A20_ENABLE_LOOPS;
-
 #if defined(CONFIG_X86_ELAN)
         /* Elan croaks if we try to touch the KBC */
         enable_a20_fast();
@@ -128,6 +126,7 @@ int enable_a20(void)
         enable_a20_kbc();
         return 0;
 #else
+       int loops = A20_ENABLE_LOOPS;
         while (loops--) {
                 /* First, check to see if A20 is already enabled
                    (legacy free, etc.) */
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 2a609dc3271c..c778e4fa55a2 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -248,6 +248,7 @@ ENTRY(resume_userspace)
         DISABLE_INTERRUPTS(CLBR_ANY)    # make sure we don't miss an interrupt
                                         # setting need_resched or sigpending
                                         # between sampling and the iret
+        TRACE_IRQS_OFF
         movl TI_flags(%ebp), %ecx
         andl $_TIF_WORK_MASK, %ecx      # is there any work to be done on
                                         # int/exception return?
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index b2cc73768a9d..f7357cc0162c 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -189,7 +189,7 @@ default_entry:
          * this stage.
          */
 
-#define KPMDS ((0x100000000-__PAGE_OFFSET) >> 30) /* Number of kernel PMDs */
+#define KPMDS (((-__PAGE_OFFSET) >> 30) & 3) /* Number of kernel PMDs */
 
         xorl %ebx,%ebx                          /* %ebx is kept at zero */
 
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index a40d54fc1fdd..4dc8600d9d20 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -2130,14 +2130,10 @@ static inline void __init check_timer(void)
 {
         int apic1, pin1, apic2, pin2;
         int vector;
-        unsigned int ver;
         unsigned long flags;
 
         local_irq_save(flags);
 
-        ver = apic_read(APIC_LVR);
-        ver = GET_APIC_VERSION(ver);
-
         /*
          * get/set the timer IRQ vector:
          */
@@ -2150,15 +2146,11 @@ static inline void __init check_timer(void)
          * mode for the 8259A whenever interrupts are routed
          * through I/O APICs.  Also IRQ0 has to be enabled in
          * the 8259A which implies the virtual wire has to be
-         * disabled in the local APIC.  Finally timer interrupts
-         * need to be acknowledged manually in the 8259A for
-         * timer_interrupt() and for the i82489DX when using
-         * the NMI watchdog.
+         * disabled in the local APIC.
          */
         apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
         init_8259A(1);
-        timer_ack = !cpu_has_tsc;
-        timer_ack |= (nmi_watchdog == NMI_IO_APIC && !APIC_INTEGRATED(ver));
+        timer_ack = 1;
         if (timer_over_8254 > 0)
                 enable_8259A_irq(0);
 
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index 3cad17fe026b..07c0f828f488 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -155,6 +155,7 @@ int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable)
         wrmsr(msr, value, dummy);
         return 0;
 }
+EXPORT_SYMBOL_GPL(geode_mfgpt_toggle_event);
 
 int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable)
 {
@@ -222,6 +223,7 @@ int geode_mfgpt_alloc_timer(int timer, int domain)
         /* No timers available - too bad */
         return -1;
 }
+EXPORT_SYMBOL_GPL(geode_mfgpt_alloc_timer);
 
 
 #ifdef CONFIG_GEODE_MFGPT_TIMER
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c
index 11b14bbaa61e..84160f74eeb0 100644
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi_32.c
@@ -26,7 +26,6 @@
 
 #include <asm/smp.h>
 #include <asm/nmi.h>
-#include <asm/timer.h>
 
 #include "mach_traps.h"
 
@@ -82,7 +81,7 @@ int __init check_nmi_watchdog(void)
 
         prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
         if (!prev_nmi_count)
-                goto error;
+                return -1;
 
         printk(KERN_INFO "Testing NMI watchdog ... ");
 
@@ -119,7 +118,7 @@ int __init check_nmi_watchdog(void)
         if (!atomic_read(&nmi_active)) {
                 kfree(prev_nmi_count);
                 atomic_set(&nmi_active, -1);
-                goto error;
+                return -1;
         }
         printk("OK.\n");
 
@@ -130,10 +129,6 @@ int __init check_nmi_watchdog(void)
 
         kfree(prev_nmi_count);
         return 0;
-error:
-        timer_ack = !cpu_has_tsc;
-
-        return -1;
 }
 
 static int __init setup_nmi_watchdog(char *str)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index c5ef1af8e79d..dc00a1331ace 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -378,6 +378,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
         struct page *page;
         unsigned long dma_mask = 0;
         dma_addr_t bus;
+        int noretry = 0;
 
         /* ignore region specifiers */
         gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -397,20 +398,25 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
         if (dev->dma_mask == NULL)
                 return NULL;
 
-        /* Don't invoke OOM killer */
-        gfp |= __GFP_NORETRY;
+        /* Don't invoke OOM killer or retry in lower 16MB DMA zone */
+        if (gfp & __GFP_DMA)
+                noretry = 1;
 
 #ifdef CONFIG_X86_64
         /* Why <=? Even when the mask is smaller than 4GB it is often
            larger than 16MB and in this case we have a chance of
            finding fitting memory in the next higher zone first. If
            not retry with true GFP_DMA. -AK */
-        if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA))
+        if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA)) {
                 gfp |= GFP_DMA32;
+                if (dma_mask < DMA_32BIT_MASK)
+                        noretry = 1;
+        }
 #endif
 
  again:
-        page = dma_alloc_pages(dev, gfp, get_order(size));
+        page = dma_alloc_pages(dev,
+                noretry ? gfp | __GFP_NORETRY : gfp, get_order(size));
         if (page == NULL)
                 return NULL;
 
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 9615eee9b775..05191bbc68b8 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -4,6 +4,8 @@
 #include <linux/acpi.h>
 #include <linux/bcd.h>
 #include <linux/mc146818rtc.h>
+#include <linux/platform_device.h>
+#include <linux/pnp.h>
 
 #include <asm/time.h>
 #include <asm/vsyscall.h>
@@ -197,3 +199,35 @@ unsigned long long native_read_tsc(void)
 }
 EXPORT_SYMBOL(native_read_tsc);
 
+
+static struct resource rtc_resources[] = {
+        [0] = {
+                .start  = RTC_PORT(0),
+                .end    = RTC_PORT(1),
+                .flags  = IORESOURCE_IO,
+        },
+        [1] = {
+                .start  = RTC_IRQ,
+                .end    = RTC_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        }
+};
+
+static struct platform_device rtc_device = {
+        .name           = "rtc_cmos",
+        .id             = -1,
+        .resource       = rtc_resources,
+        .num_resources  = ARRAY_SIZE(rtc_resources),
+};
+
+static __init int add_rtc_cmos(void)
+{
+#ifdef CONFIG_PNP
+        if (!pnp_platform_devices)
+                platform_device_register(&rtc_device);
+#else
+        platform_device_register(&rtc_device);
+#endif /* CONFIG_PNP */
+        return 0;
+}
+device_initcall(add_rtc_cmos);
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index bde6f63e15d5..08d752de4eee 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -544,6 +544,7 @@ vm86_trap:
 #define DO_ERROR(trapnr, signr, str, name)                              \
 void do_##name(struct pt_regs *regs, long error_code)                   \
 {                                                                       \
+        trace_hardirqs_fixup();                                         \
         if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr)  \
                                                 == NOTIFY_STOP)         \
                 return;                                                 \
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 7c077a9d9777..f2f5d260874e 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -200,7 +200,6 @@ int __pit_timer_fn(struct kvm_kpit_state *ps)
 
         atomic_inc(&pt->pending);
         smp_mb__after_atomic_inc();
-        /* FIXME: handle case where the guest is in guest mode */
         if (vcpu0 && waitqueue_active(&vcpu0->wq)) {
                 vcpu0->arch.mp_state = KVM_MP_STATE_RUNNABLE;
                 wake_up_interruptible(&vcpu0->wq);
@@ -237,6 +236,19 @@ static enum hrtimer_restart pit_timer_fn(struct hrtimer *data)
                 return HRTIMER_NORESTART;
 }
 
+void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu)
+{
+        struct kvm_pit *pit = vcpu->kvm->arch.vpit;
+        struct hrtimer *timer;
+
+        if (vcpu->vcpu_id != 0 || !pit)
+                return;
+
+        timer = &pit->pit_state.pit_timer.timer;
+        if (hrtimer_cancel(timer))
+                hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
+}
+
 static void destroy_pit_timer(struct kvm_kpit_timer *pt)
 {
         pr_debug("pit: execute del timer!\n");
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index ce1f583459b1..76d736b5f664 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -94,3 +94,9 @@ void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
         /* TODO: PIT, RTC etc. */
 }
 EXPORT_SYMBOL_GPL(kvm_timer_intr_post);
+
+void __kvm_migrate_timers(struct kvm_vcpu *vcpu)
+{
+        __kvm_migrate_apic_timer(vcpu);
+        __kvm_migrate_pit_timer(vcpu);
+}
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 1802134b836f..2a15be2275c0 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -84,6 +84,8 @@ void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
 void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
+void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu);
+void __kvm_migrate_timers(struct kvm_vcpu *vcpu);
 
 int pit_has_pending_timer(struct kvm_vcpu *vcpu);
 int apic_has_pending_timer(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7246b60afb96..ee3f53098f0c 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -658,7 +658,7 @@ static int is_empty_shadow_page(u64 *spt)
         u64 *end;
 
         for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++)
-                if (*pos != shadow_trap_nonpresent_pte) {
+                if (is_shadow_present_pte(*pos)) {
                         printk(KERN_ERR "%s: %p %llx\n", __func__,
                                pos, *pos);
                         return 0;
@@ -1858,6 +1858,7 @@ static void free_mmu_pages(struct kvm_vcpu *vcpu)
                 sp = container_of(vcpu->kvm->arch.active_mmu_pages.next,
                                   struct kvm_mmu_page, link);
                 kvm_mmu_zap_page(vcpu->kvm, sp);
+                cond_resched();
         }
         free_page((unsigned long)vcpu->arch.mmu.pae_root);
 }
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 156fe10288ae..934c7b619396 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -418,7 +418,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
 
         /* mmio */
         if (is_error_pfn(pfn)) {
-                pgprintk("gfn %x is mmio\n", walker.gfn);
+                pgprintk("gfn %lx is mmio\n", walker.gfn);
                 kvm_release_pfn_clean(pfn);
                 return 1;
         }
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ab22615eee89..6b0d5fa5bab3 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -688,7 +688,7 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
                 delta = vcpu->arch.host_tsc - tsc_this;
                 svm->vmcb->control.tsc_offset += delta;
                 vcpu->cpu = cpu;
-                kvm_migrate_apic_timer(vcpu);
+                kvm_migrate_timers(vcpu);
         }
 
         for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index bfe4db11989c..02efbe75f317 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -608,7 +608,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 
         if (vcpu->cpu != cpu) {
                 vcpu_clear(vmx);
-                kvm_migrate_apic_timer(vcpu);
+                kvm_migrate_timers(vcpu);
                 vpid_sync_vcpu_all(vmx);
         }
 
@@ -1036,6 +1036,7 @@ static void hardware_enable(void *garbage)
 static void hardware_disable(void *garbage)
 {
         asm volatile (ASM_VMX_VMXOFF : : : "cc");
+        write_cr4(read_cr4() & ~X86_CR4_VMXE);
 }
 
 static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 21338bdb28ff..00acf1301a15 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2758,7 +2758,7 @@ again:
 
         if (vcpu->requests) {
                 if (test_and_clear_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests))
-                        __kvm_migrate_apic_timer(vcpu);
+                        __kvm_migrate_timers(vcpu);
                 if (test_and_clear_bit(KVM_REQ_REPORT_TPR_ACCESS,
                                        &vcpu->requests)) {
                         kvm_run->exit_reason = KVM_EXIT_TPR_ACCESS;
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 8a96320ab071..932f216d890c 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -1727,7 +1727,8 @@ twobyte_insn:
                         if (rc)
                                 goto done;
 
-                        kvm_emulate_hypercall(ctxt->vcpu);
+                        /* Let the processor re-execute the fixed hypercall */
+                        c->eip = ctxt->vcpu->arch.rip;
                         /* Disable writeback. */
                         c->dst.type = OP_NONE;
                         break;
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index fd7e1798c75a..8bcb6f40ccb6 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -497,6 +497,11 @@ static int vmalloc_fault(unsigned long address)
         unsigned long pgd_paddr;
         pmd_t *pmd_k;
         pte_t *pte_k;
+
+        /* Make sure we are in vmalloc area */
+        if (!(address >= VMALLOC_START && address < VMALLOC_END))
+                return -1;
+
         /*
          * Synchronize this task's top level page-table
          * with the 'reference' page table.
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 3890234e5b26..99649dccad28 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -97,36 +97,9 @@ static __init inline int srat_disabled(void)
         return numa_off || acpi_numa < 0;
 }
 
-/*
- * A lot of BIOS fill in 10 (= no distance) everywhere. This messes
- * up the NUMA heuristics which wants the local node to have a smaller
- * distance than the others.
- * Do some quick checks here and only use the SLIT if it passes.
- */
-static __init int slit_valid(struct acpi_table_slit *slit)
-{
-        int i, j;
-        int d = slit->locality_count;
-        for (i = 0; i < d; i++) {
-                for (j = 0; j < d; j++)  {
-                        u8 val = slit->entry[d*i + j];
-                        if (i == j) {
-                                if (val != LOCAL_DISTANCE)
-                                        return 0;
-                        } else if (val <= LOCAL_DISTANCE)
-                                return 0;
-                }
-        }
-        return 1;
-}
-
 /* Callback for SLIT parsing */
 void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 {
-        if (!slit_valid(slit)) {
-                printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
-                return;
-        }
         acpi_slit = slit;
 }
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 6e64aaf00d1d..940185ecaeda 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -328,18 +328,18 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
 #endif
         {
                 .callback = set_bf_sort,
-                .ident = "HP ProLiant DL385 G2",
+                .ident = "HP ProLiant DL360",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "HP"),
-                        DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL360"),
                 },
         },
         {
                 .callback = set_bf_sort,
-                .ident = "HP ProLiant DL585 G2",
+                .ident = "HP ProLiant DL380",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "HP"),
-                        DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL380"),
                 },
         },
         {}
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index e70b9c57b88e..b821f4462d99 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -15,7 +15,8 @@ static __init int pci_access_init(void)
         pci_mmcfg_early_init();
 
 #ifdef CONFIG_PCI_OLPC
-        pci_olpc_init();
+        if (!pci_olpc_init())
+                return 0;       /* skip additional checks if it's an XO */
 #endif
 #ifdef CONFIG_PCI_BIOS
         pci_pcbios_init();
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 0908fca901bf..ca8df9c260bc 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -621,6 +621,13 @@ static __init int via_router_probe(struct irq_router *r,
                          */
                         device = PCI_DEVICE_ID_VIA_8235;
                         break;
+                case PCI_DEVICE_ID_VIA_8237:
+                        /**
+                         * Asus a7v600 bios wrongly reports 8237
+                         * as 586-compatible
+                         */
+                        device = PCI_DEVICE_ID_VIA_8237;
+                        break;
                 }
         }
 
diff --git a/arch/x86/pci/olpc.c b/arch/x86/pci/olpc.c
index 5e7636558c02..e11e9e803d5f 100644
--- a/arch/x86/pci/olpc.c
+++ b/arch/x86/pci/olpc.c
@@ -302,12 +302,13 @@ static struct pci_raw_ops pci_olpc_conf = {
         .write = pci_olpc_write,
 };
 
-void __init pci_olpc_init(void)
+int __init pci_olpc_init(void)
 {
         if (!machine_is_olpc() || olpc_has_vsa())
-                return;
+                return -ENODEV;
 
         printk(KERN_INFO "PCI: Using configuration type OLPC\n");
         raw_pci_ops = &pci_olpc_conf;
         is_lx = is_geode_lx();
+        return 0;
 }
diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h
index f3972b12c60a..720c4c554534 100644
--- a/arch/x86/pci/pci.h
+++ b/arch/x86/pci/pci.h
@@ -101,7 +101,7 @@ extern struct pci_raw_ops pci_direct_conf1;
 extern int pci_direct_probe(void);
 extern void pci_direct_init(int type);
 extern void pci_pcbios_init(void);
-extern void pci_olpc_init(void);
+extern int pci_olpc_init(void);
 
 /* pci-mmconfig.c */
 
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index c39e1a5aa241..52b2e3856980 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -12,6 +12,7 @@
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/kernel_stat.h>
+#include <linux/math64.h>
 
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
@@ -150,11 +151,7 @@ static void do_stolen_accounting(void)
         if (stolen < 0)
                 stolen = 0;
 
-        ticks = 0;
-        while (stolen >= NS_PER_TICK) {
-                ticks++;
-                stolen -= NS_PER_TICK;
-        }
+        ticks = iter_div_u64_rem(stolen, NS_PER_TICK, &stolen);
         __get_cpu_var(residual_stolen) = stolen;
         account_steal_time(NULL, ticks);
 
@@ -166,11 +163,7 @@ static void do_stolen_accounting(void)
         if (blocked < 0)
                 blocked = 0;
 
-        ticks = 0;
-        while (blocked >= NS_PER_TICK) {
-                ticks++;
-                blocked -= NS_PER_TICK;
-        }
+        ticks = iter_div_u64_rem(blocked, NS_PER_TICK, &blocked);
         __get_cpu_var(residual_blocked) = blocked;
         account_steal_time(idle_task(smp_processor_id()), ticks);
 }