19 files changed, 143 insertions, 116 deletions

diff --git a/arch/x86/boot/tty.c b/arch/x86/boot/tty.c
index 0be77b39328..7e8e8b25f5f 100644
--- a/arch/x86/boot/tty.c
+++ b/arch/x86/boot/tty.c
@@ -74,7 +74,7 @@ static int kbd_pending(void)
 {
         u8 pending;
         asm volatile("int $0x16; setnz %0"
-                     : "=rm" (pending)
+                     : "=qm" (pending)
                      : "a" (0x0100));
         return pending;
 }
diff --git a/arch/x86/include/asm/ds.h b/arch/x86/include/asm/ds.h
index 72c5a190bf4..a95008457ea 100644
--- a/arch/x86/include/asm/ds.h
+++ b/arch/x86/include/asm/ds.h
@@ -23,12 +23,13 @@
 #ifndef _ASM_X86_DS_H
 #define _ASM_X86_DS_H
 
-#ifdef CONFIG_X86_DS
 
 #include <linux/types.h>
 #include <linux/init.h>
 
 
+#ifdef CONFIG_X86_DS
+
 struct task_struct;
 
 /*
@@ -232,7 +233,8 @@ extern void ds_free(struct ds_context *context);
 
 #else /* CONFIG_X86_DS */
 
-#define ds_init_intel(config) do {} while (0)
+struct cpuinfo_x86;
+static inline void __cpuinit ds_init_intel(struct cpuinfo_x86 *ignored) {}
 
 #endif /* CONFIG_X86_DS */
 #endif /* _ASM_X86_DS_H */
diff --git a/arch/x86/include/asm/pci_64.h b/arch/x86/include/asm/pci_64.h
index 5b28995d664..d02d936840a 100644
--- a/arch/x86/include/asm/pci_64.h
+++ b/arch/x86/include/asm/pci_64.h
@@ -34,8 +34,6 @@ extern void pci_iommu_alloc(void);
  */
 #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
 
-#if defined(CONFIG_GART_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
-
 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       \
         dma_addr_t ADDR_NAME;
 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         \
@@ -49,18 +47,6 @@ extern void pci_iommu_alloc(void);
 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)           \
         (((PTR)->LEN_NAME) = (VAL))
 
-#else
-/* No IOMMU */
-
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
-#define pci_unmap_addr(PTR, ADDR_NAME)          (0)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
-#define pci_unmap_len(PTR, LEN_NAME)            (0)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL)   do { } while (0)
-
-#endif
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_X86_PCI_64_H */
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index d1531c8480b..eefb0594b05 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -271,8 +271,6 @@ extern int do_get_thread_area(struct task_struct *p, int idx,
 extern int do_set_thread_area(struct task_struct *p, int idx,
                               struct user_desc __user *info, int can_allocate);
 
-#define __ARCH_WANT_COMPAT_SYS_PTRACE
-
 #endif /* __KERNEL__ */
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 1d8ed95da84..af2bc36ca1c 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -46,7 +46,7 @@ obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o
 obj-y                           += process.o
 obj-y                           += i387.o xsave.o
 obj-y                           += ptrace.o
-obj-y                           += ds.o
+obj-$(CONFIG_X86_DS)            += ds.o
 obj-$(CONFIG_X86_32)            += tls.o
 obj-$(CONFIG_IA32_EMULATION)    += tls.o
 obj-y                           += step.o
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 04a7f960bbc..16f94879b52 100644
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -1315,7 +1315,7 @@ void enable_x2apic(void)
         }
 }
 
-void enable_IR_x2apic(void)
+void __init enable_IR_x2apic(void)
 {
 #ifdef CONFIG_INTR_REMAP
         int ret;
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index d3dcd58b87c..7f05f44b97e 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -115,9 +115,20 @@ static int query_current_values_with_pending_wait(struct powernow_k8_data *data)
         u32 i = 0;
 
         if (cpu_family == CPU_HW_PSTATE) {
-                rdmsr(MSR_PSTATE_STATUS, lo, hi);
-                i = lo & HW_PSTATE_MASK;
-                data->currpstate = i;
+                if (data->currpstate == HW_PSTATE_INVALID) {
+                        /* read (initial) hw pstate if not yet set */
+                        rdmsr(MSR_PSTATE_STATUS, lo, hi);
+                        i = lo & HW_PSTATE_MASK;
+
+                        /*
+                         * a workaround for family 11h erratum 311 might cause
+                         * an "out-of-range Pstate if the core is in Pstate-0
+                         */
+                        if (i >= data->numps)
+                                data->currpstate = HW_PSTATE_0;
+                        else
+                                data->currpstate = i;
+                }
                 return 0;
         }
         do {
@@ -1121,6 +1132,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
         }
 
         data->cpu = pol->cpu;
+        data->currpstate = HW_PSTATE_INVALID;
 
         if (powernow_k8_cpu_init_acpi(data)) {
                 /*
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
index ab48cfed4d9..65cfb5d7f77 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
@@ -5,6 +5,19 @@
  *  http://www.gnu.org/licenses/gpl.html
  */
 
+
+enum pstate {
+        HW_PSTATE_INVALID = 0xff,
+        HW_PSTATE_0 = 0,
+        HW_PSTATE_1 = 1,
+        HW_PSTATE_2 = 2,
+        HW_PSTATE_3 = 3,
+        HW_PSTATE_4 = 4,
+        HW_PSTATE_5 = 5,
+        HW_PSTATE_6 = 6,
+        HW_PSTATE_7 = 7,
+};
+
 struct powernow_k8_data {
         unsigned int cpu;
 
@@ -23,7 +36,9 @@ struct powernow_k8_data {
         u32 exttype; /* extended interface = 1 */
 
         /* keep track of the current fid / vid or pstate */
-        u32 currvid, currfid, currpstate;
+        u32 currvid;
+        u32 currfid;
+        enum pstate currpstate;
 
         /* the powernow_table includes all frequency and vid/fid pairings:
          * fid are the lower 8 bits of the index, vid are the upper 8 bits.
diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index d1a121443bd..a2d1176c38e 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -21,8 +21,6 @@
  */
 
 
-#ifdef CONFIG_X86_DS
-
 #include <asm/ds.h>
 
 #include <linux/errno.h>
@@ -211,14 +209,15 @@ static DEFINE_PER_CPU(struct ds_context *, system_context);
 static inline struct ds_context *ds_get_context(struct task_struct *task)
 {
         struct ds_context *context;
+        unsigned long irq;
 
-        spin_lock(&ds_lock);
+        spin_lock_irqsave(&ds_lock, irq);
 
         context = (task ? task->thread.ds_ctx : this_system_context);
         if (context)
                 context->count++;
 
-        spin_unlock(&ds_lock);
+        spin_unlock_irqrestore(&ds_lock, irq);
 
         return context;
 }
@@ -226,55 +225,46 @@ static inline struct ds_context *ds_get_context(struct task_struct *task)
 /*
  * Same as ds_get_context, but allocates the context and it's DS
  * structure, if necessary; returns NULL; if out of memory.
- *
- * pre: requires ds_lock to be held
  */
 static inline struct ds_context *ds_alloc_context(struct task_struct *task)
 {
         struct ds_context **p_context =
                 (task ? &task->thread.ds_ctx : &this_system_context);
         struct ds_context *context = *p_context;
+        unsigned long irq;
 
         if (!context) {
-                spin_unlock(&ds_lock);
-
                 context = kzalloc(sizeof(*context), GFP_KERNEL);
-
-                if (!context) {
-                        spin_lock(&ds_lock);
+                if (!context)
                         return NULL;
-                }
 
                 context->ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL);
                 if (!context->ds) {
                         kfree(context);
-                        spin_lock(&ds_lock);
                         return NULL;
                 }
 
-                spin_lock(&ds_lock);
-                /*
-                 * Check for race - another CPU could have allocated
-                 * it meanwhile:
-                 */
+                spin_lock_irqsave(&ds_lock, irq);
+
                 if (*p_context) {
                         kfree(context->ds);
                         kfree(context);
-                        return *p_context;
-                }
 
-                *p_context = context;
+                        context = *p_context;
+                } else {
+                        *p_context = context;
 
-                context->this = p_context;
-                context->task = task;
+                        context->this = p_context;
+                        context->task = task;
 
-                if (task)
-                        set_tsk_thread_flag(task, TIF_DS_AREA_MSR);
+                        if (task)
+                                set_tsk_thread_flag(task, TIF_DS_AREA_MSR);
 
-                if (!task || (task == current))
-                        wrmsr(MSR_IA32_DS_AREA, (unsigned long)context->ds, 0);
-
-                get_tracer(task);
+                        if (!task || (task == current))
+                                wrmsrl(MSR_IA32_DS_AREA,
+                                       (unsigned long)context->ds);
+                }
+                spin_unlock_irqrestore(&ds_lock, irq);
         }
 
         context->count++;
@@ -288,10 +278,12 @@ static inline struct ds_context *ds_alloc_context(struct task_struct *task)
  */
 static inline void ds_put_context(struct ds_context *context)
 {
+        unsigned long irq;
+
         if (!context)
                 return;
 
-        spin_lock(&ds_lock);
+        spin_lock_irqsave(&ds_lock, irq);
 
         if (--context->count)
                 goto out;
@@ -313,7 +305,7 @@ static inline void ds_put_context(struct ds_context *context)
         kfree(context->ds);
         kfree(context);
  out:
-        spin_unlock(&ds_lock);
+        spin_unlock_irqrestore(&ds_lock, irq);
 }
 
 
@@ -384,6 +376,7 @@ static int ds_request(struct task_struct *task, void *base, size_t size,
         struct ds_context *context;
         unsigned long buffer, adj;
         const unsigned long alignment = (1 << 3);
+        unsigned long irq;
         int error = 0;
 
         if (!ds_cfg.sizeof_ds)
@@ -398,26 +391,27 @@ static int ds_request(struct task_struct *task, void *base, size_t size,
                 return -EOPNOTSUPP;
 
 
-        spin_lock(&ds_lock);
-
-        error = -ENOMEM;
         context = ds_alloc_context(task);
         if (!context)
-                goto out_unlock;
+                return -ENOMEM;
+
+        spin_lock_irqsave(&ds_lock, irq);
 
         error = -EPERM;
         if (!check_tracer(task))
                 goto out_unlock;
 
+        get_tracer(task);
+
         error = -EALREADY;
         if (context->owner[qual] == current)
-                goto out_unlock;
+                goto out_put_tracer;
         error = -EPERM;
         if (context->owner[qual] != NULL)
-                goto out_unlock;
+                goto out_put_tracer;
         context->owner[qual] = current;
 
-        spin_unlock(&ds_lock);
+        spin_unlock_irqrestore(&ds_lock, irq);
 
 
         error = -ENOMEM;
@@ -465,10 +459,17 @@ static int ds_request(struct task_struct *task, void *base, size_t size,
  out_release:
         context->owner[qual] = NULL;
         ds_put_context(context);
+        put_tracer(task);
+        return error;
+
+ out_put_tracer:
+        spin_unlock_irqrestore(&ds_lock, irq);
+        ds_put_context(context);
+        put_tracer(task);
         return error;
 
  out_unlock:
-        spin_unlock(&ds_lock);
+        spin_unlock_irqrestore(&ds_lock, irq);
         ds_put_context(context);
         return error;
 }
@@ -818,13 +819,21 @@ static const struct ds_configuration ds_cfg_var = {
         .sizeof_ds    = sizeof(long) * 12,
         .sizeof_field = sizeof(long),
         .sizeof_rec[ds_bts]   = sizeof(long) * 3,
+#ifdef __i386__
         .sizeof_rec[ds_pebs]  = sizeof(long) * 10
+#else
+        .sizeof_rec[ds_pebs]  = sizeof(long) * 18
+#endif
 };
 static const struct ds_configuration ds_cfg_64 = {
         .sizeof_ds    = 8 * 12,
         .sizeof_field = 8,
         .sizeof_rec[ds_bts]   = 8 * 3,
+#ifdef __i386__
         .sizeof_rec[ds_pebs]  = 8 * 10
+#else
+        .sizeof_rec[ds_pebs]  = 8 * 18
+#endif
 };
 
 static inline void
@@ -878,4 +887,3 @@ void ds_free(struct ds_context *context)
         while (leftovers--)
                 ds_put_context(context);
 }
-#endif /* CONFIG_X86_DS */
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 1f20608d4ca..b0f61f0dcd0 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -58,7 +58,7 @@ void __cpuinit mxcsr_feature_mask_init(void)
         stts();
 }
 
-void __init init_thread_xstate(void)
+void __cpuinit init_thread_xstate(void)
 {
         if (!HAVE_HWFP) {
                 xstate_size = sizeof(struct i387_soft_struct);
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index c9513e1ff28..9043251210f 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -3608,27 +3608,7 @@ int __init io_apic_get_redir_entries (int ioapic)
 
 int __init probe_nr_irqs(void)
 {
-        int idx;
-        int nr = 0;
-#ifndef CONFIG_XEN
-        int nr_min = 32;
-#else
-        int nr_min = NR_IRQS;
-#endif
-
-        for (idx = 0; idx < nr_ioapics; idx++)
-                nr += io_apic_get_redir_entries(idx) + 1;
-
-        /* double it for hotplug and msi and nmi */
-        nr <<= 1;
-
-        /* something wrong ? */
-        if (nr < nr_min)
-                nr = nr_min;
-        if (WARN_ON(nr > NR_IRQS))
-                nr = NR_IRQS;
-
-        return nr;
+        return NR_IRQS;
 }
 
 /* --------------------------------------------------------------------------
@@ -3775,7 +3755,9 @@ int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
 void __init setup_ioapic_dest(void)
 {
         int pin, ioapic, irq, irq_entry;
+        struct irq_desc *desc;
         struct irq_cfg *cfg;
+        cpumask_t mask;
 
         if (skip_ioapic_setup == 1)
                 return;
@@ -3792,16 +3774,30 @@ void __init setup_ioapic_dest(void)
                          * cpu is online.
                          */
                         cfg = irq_cfg(irq);
-                        if (!cfg->vector)
+                        if (!cfg->vector) {
                                 setup_IO_APIC_irq(ioapic, pin, irq,
                                                   irq_trigger(irq_entry),
                                                   irq_polarity(irq_entry));
+                                continue;
+
+                        }
+
+                        /*
+                         * Honour affinities which have been set in early boot
+                         */
+                        desc = irq_to_desc(irq);
+                        if (desc->status &
+                            (IRQ_NO_BALANCING | IRQ_AFFINITY_SET))
+                                mask = desc->affinity;
+                        else
+                                mask = TARGET_CPUS;
+
 #ifdef CONFIG_INTR_REMAP
-                        else if (intr_remapping_enabled)
-                                set_ir_ioapic_affinity_irq(irq, TARGET_CPUS);
-#endif
+                        if (intr_remapping_enabled)
+                                set_ir_ioapic_affinity_irq(irq, mask);
                         else
-                                set_ioapic_affinity_irq(irq, TARGET_CPUS);
+#endif
+                                set_ioapic_affinity_irq(irq, mask);
                 }
 
         }
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 1c9cc431ea4..e169ae9b6a6 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -128,7 +128,7 @@ static int kvm_register_clock(char *txt)
 }
 
 #ifdef CONFIG_X86_LOCAL_APIC
-static void __devinit kvm_setup_secondary_clock(void)
+static void __cpuinit kvm_setup_secondary_clock(void)
 {
         /*
          * Now that the first cpu already had this clocksource initialized,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index e1e731d78f3..d28bbdc35e4 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1567,7 +1567,7 @@ static int __init calgary_parse_options(char *p)
                                 ++p;
                         if (*p == '\0')
                                 break;
-                        bridge = simple_strtol(p, &endp, 0);
+                        bridge = simple_strtoul(p, &endp, 0);
                         if (p == endp)
                                 break;
 
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index b13acb75e82..15c3e699918 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -310,7 +310,7 @@ static void __init setup_xstate_init(void)
 /*
  * Enable and initialize the xsave feature.
  */
-void __init xsave_cntxt_init(void)
+void __ref xsave_cntxt_init(void)
 {
         unsigned int eax, ebx, ecx, edx;
 
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 3f1b81a83e2..716d26f0e5d 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -69,7 +69,7 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs)
         int i;
 
         if (!reset_value) {
-                reset_value = kmalloc(sizeof(unsigned) * num_counters,
+                reset_value = kmalloc(sizeof(reset_value[0]) * num_counters,
                                         GFP_ATOMIC);
                 if (!reset_value)
                         return;
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 3c27a809393..2051dc96b8e 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -496,21 +496,24 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SIEMENS, 0x0015,
                           pci_siemens_interrupt_controller);
 
 /*
- * Regular PCI devices have 256 bytes, but AMD Family 10h Opteron ext config
- * have 4096 bytes.  Even if the device is capable, that doesn't mean we can
- * access it.  Maybe we don't have a way to generate extended config space
- * accesses.   So check it
+ * Regular PCI devices have 256 bytes, but AMD Family 10h/11h CPUs have
+ * 4096 bytes configuration space for each function of their processor
+ * configuration space.
  */
-static void fam10h_pci_cfg_space_size(struct pci_dev *dev)
+static void amd_cpu_pci_cfg_space_size(struct pci_dev *dev)
 {
         dev->cfg_size = pci_cfg_space_size_ext(dev);
 }
-
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1200, fam10h_pci_cfg_space_size);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1201, fam10h_pci_cfg_space_size);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1202, fam10h_pci_cfg_space_size);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1203, fam10h_pci_cfg_space_size);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1204, fam10h_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1200, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1201, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1202, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1203, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1204, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1300, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1301, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1302, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1303, amd_cpu_pci_cfg_space_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1304, amd_cpu_pci_cfg_space_size);
 
 /*
  * SB600: Disable BAR1 on device 14.0 to avoid HPET resources from
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 688936044dc..636ef4caa52 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -661,12 +661,11 @@ void xen_set_pgd(pgd_t *ptr, pgd_t val)
  * For 64-bit, we must skip the Xen hole in the middle of the address
  * space, just after the big x86-64 virtual hole.
  */
-static int xen_pgd_walk(struct mm_struct *mm,
-                        int (*func)(struct mm_struct *mm, struct page *,
-                                    enum pt_level),
-                        unsigned long limit)
+static int __xen_pgd_walk(struct mm_struct *mm, pgd_t *pgd,
+                          int (*func)(struct mm_struct *mm, struct page *,
+                                      enum pt_level),
+                          unsigned long limit)
 {
-        pgd_t *pgd = mm->pgd;
         int flush = 0;
         unsigned hole_low, hole_high;
         unsigned pgdidx_limit, pudidx_limit, pmdidx_limit;
@@ -753,6 +752,14 @@ out:
         return flush;
 }
 
+static int xen_pgd_walk(struct mm_struct *mm,
+                        int (*func)(struct mm_struct *mm, struct page *,
+                                    enum pt_level),
+                        unsigned long limit)
+{
+        return __xen_pgd_walk(mm, mm->pgd, func, limit);
+}
+
 /* If we're using split pte locks, then take the page's lock and
    return a pointer to it.  Otherwise return NULL. */
 static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm)
@@ -854,7 +861,7 @@ static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd)
 
         xen_mc_batch();
 
-         if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) {
+        if (__xen_pgd_walk(mm, pgd, xen_pin_page, USER_LIMIT)) {
                 /* re-enable interrupts for flushing */
                 xen_mc_issue(0);
 
@@ -998,7 +1005,7 @@ static void __xen_pgd_unpin(struct mm_struct *mm, pgd_t *pgd)
                        PT_PMD);
 #endif
 
-        xen_pgd_walk(mm, xen_unpin_page, USER_LIMIT);
+        __xen_pgd_walk(mm, pgd, xen_unpin_page, USER_LIMIT);
 
         xen_mc_issue(0);
 }
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index d77da613b1d..acd9b6705e0 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -362,7 +362,7 @@ static void xen_cpu_die(unsigned int cpu)
                 alternatives_smp_switch(0);
 }
 
-static void xen_play_dead(void)
+static void __cpuinit xen_play_dead(void) /* used only with CPU_HOTPLUG */
 {
         play_dead_common();
         HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index d7422dc2a55..9e1afae8461 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -49,7 +49,7 @@ bool xen_vcpu_stolen(int vcpu);
 
 void xen_mark_init_mm_pinned(void);
 
-void __init xen_setup_vcpu_info_placement(void);
+void xen_setup_vcpu_info_placement(void);
 
 #ifdef CONFIG_SMP
 void xen_smp_init(void);