Merge branch 'linus' into perfcounters/urgent

Merge reason: this branch was on a .30-ish base before, update
              it to an almost-.31-rc2 upstream base to pick up fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

13 files changed, 38 insertions, 12 deletions

diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 0490794fe4a..745e095fe82 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -9,6 +9,11 @@ extern void pci_iommu_shutdown(void);
 extern void no_iommu_init(void);
 extern int force_iommu, no_iommu;
 extern int iommu_detected;
+#ifdef	CONFIG_DMAR
+extern int iommu_pass_through;
+#else
+#define iommu_pass_through	(0)
+#endif
 extern void iommu_dma_init(void);
 extern void machvec_init(const char *name);
 
diff --git a/arch/ia64/kernel/acpi-processor.c b/arch/ia64/kernel/acpi-processor.c
index cbe6cee5a55..dbda7bde611 100644
--- a/arch/ia64/kernel/acpi-processor.c
+++ b/arch/ia64/kernel/acpi-processor.c
@@ -71,3 +71,15 @@ void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
 }
 
 EXPORT_SYMBOL(arch_acpi_processor_init_pdc);
+
+void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr)
+{
+	if (pr->pdc) {
+		kfree(pr->pdc->pointer->buffer.pointer);
+		kfree(pr->pdc->pointer);
+		kfree(pr->pdc);
+		pr->pdc = NULL;
+	}
+}
+
+EXPORT_SYMBOL(arch_acpi_processor_cleanup_pdc);
diff --git a/arch/ia64/kernel/esi.c b/arch/ia64/kernel/esi.c
index ebf4e988e78..d5764a3d74a 100644
--- a/arch/ia64/kernel/esi.c
+++ b/arch/ia64/kernel/esi.c
@@ -65,7 +65,7 @@ static int __init esi_init (void)
 	}
 
 	if (!esi)
-		return -ENODEV;;
+		return -ENODEV;
 
 	systab = __va(esi);
 
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 1376da45fd0..05695962fe4 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -32,6 +32,8 @@ int force_iommu __read_mostly = 1;
 int force_iommu __read_mostly;
 #endif
 
+int iommu_pass_through;
+
 /* Dummy device used for NULL arguments (normally ISA). Better would
    be probably a smaller DMA mask, but this is bug-to-bug compatible
    to i386. */
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 285aae8431c..223abb13410 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -46,7 +46,7 @@ void __init swiotlb_dma_init(void)
 
 void __init pci_swiotlb_init(void)
 {
-	if (!iommu_detected) {
+	if (!iommu_detected || iommu_pass_through) {
 #ifdef CONFIG_IA64_GENERIC
 		swiotlb = 1;
 		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index abce2468a40..f1782705b1f 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -5603,7 +5603,7 @@ pfm_interrupt_handler(int irq, void *arg)
  * /proc/perfmon interface, for debug only
  */
 
-#define PFM_PROC_SHOW_HEADER	((void *)nr_cpu_ids+1)
+#define PFM_PROC_SHOW_HEADER	((void *)(long)nr_cpu_ids+1)
 
 static void *
 pfm_proc_start(struct seq_file *m, loff_t *pos)
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index 7053c55b764..e6676fca482 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -192,7 +192,7 @@ struct salinfo_platform_oemdata_parms {
 static void
 salinfo_work_to_do(struct salinfo_data *data)
 {
-	down_trylock(&data->mutex);
+	(void)(down_trylock(&data->mutex) ?: 0);
 	up(&data->mutex);
 }
 
diff --git a/arch/ia64/kvm/kvm_lib.c b/arch/ia64/kvm/kvm_lib.c
index a85cb611ecd..f1268b8e6f9 100644
--- a/arch/ia64/kvm/kvm_lib.c
+++ b/arch/ia64/kvm/kvm_lib.c
@@ -11,5 +11,11 @@
  *
  */
 #undef CONFIG_MODULES
+#include <linux/module.h>
+#undef CONFIG_KALLSYMS
+#undef EXPORT_SYMBOL
+#undef EXPORT_SYMBOL_GPL
+#define EXPORT_SYMBOL(sym)
+#define EXPORT_SYMBOL_GPL(sym)
 #include "../../../lib/vsprintf.c"
 #include "../../../lib/ctype.c"
diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c
index a8f84da04b4..bb862fb224f 100644
--- a/arch/ia64/kvm/process.c
+++ b/arch/ia64/kvm/process.c
@@ -130,7 +130,7 @@ static void collect_interruption(struct kvm_vcpu *vcpu)
 	if (vdcr & IA64_DCR_PP) {
 		vpsr |= IA64_PSR_PP;
 	} else {
-		vpsr &= ~IA64_PSR_PP;;
+		vpsr &= ~IA64_PSR_PP;
 	}
 
 	vcpu_set_psr(vcpu, vpsr);
@@ -594,11 +594,11 @@ static void set_pal_call_data(struct kvm_vcpu *vcpu)
 		p->u.pal_data.gr30 = vcpu_get_gr(vcpu, 30);
 		break;
 	case PAL_BRAND_INFO:
-		p->u.pal_data.gr29 = gr29;;
+		p->u.pal_data.gr29 = gr29;
 		p->u.pal_data.gr30 = kvm_trans_pal_call_args(vcpu, gr30);
 		break;
 	default:
-		p->u.pal_data.gr29 = gr29;;
+		p->u.pal_data.gr29 = gr29;
 		p->u.pal_data.gr30 = vcpu_get_gr(vcpu, 30);
 	}
 	p->u.pal_data.gr28 = gr28;
diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c
index a2c6c15e476..46b02cbcc87 100644
--- a/arch/ia64/kvm/vcpu.c
+++ b/arch/ia64/kvm/vcpu.c
@@ -406,7 +406,7 @@ void getreg(unsigned long regnum, unsigned long *val,
 	 * Now look at registers in [0-31] range and init correct UNAT
 	 */
 	addr = (unsigned long)regs;
-	unat = &regs->eml_unat;;
+	unat = &regs->eml_unat;
 
 	addr += gr_info[regnum];
 
diff --git a/arch/ia64/kvm/vtlb.c b/arch/ia64/kvm/vtlb.c
index 4290a429bf7..20b3852f7a6 100644
--- a/arch/ia64/kvm/vtlb.c
+++ b/arch/ia64/kvm/vtlb.c
@@ -135,7 +135,7 @@ struct thash_data *__vtr_lookup(struct kvm_vcpu *vcpu, u64 va, int type)
 	u64 rid;
 
 	rid = vcpu_get_rr(vcpu, va);
-	rid = rid & RR_RID_MASK;;
+	rid = rid & RR_RID_MASK;
 	if (type == D_TLB) {
 		if (vcpu_quick_region_check(vcpu->arch.dtr_regions, va)) {
 			for (trp = (struct thash_data *)&vcpu->arch.dtrs, i = 0;
@@ -518,7 +518,7 @@ struct thash_data *vtlb_lookup(struct kvm_vcpu *v, u64 va, int is_data)
 
 	struct thash_cb *hcb = &v->arch.vtlb;
 
-	cch = __vtr_lookup(v, va, is_data);;
+	cch = __vtr_lookup(v, va, is_data);
 	if (cch)
 		return cch;
 
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 23088bed111..19261a99e62 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -154,7 +154,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
 	 * sure we exit gracefully rather than endlessly redo the
 	 * fault.
 	 */
-	fault = handle_mm_fault(mm, vma, address, (mask & VM_WRITE) != 0);
+	fault = handle_mm_fault(mm, vma, address, (mask & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We ran out of memory, or some other thing happened
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index 76645cf6ac5..25831c47c57 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -435,7 +435,8 @@ void sn_generate_path(struct pci_bus *pci_bus, char *address)
 	bricktype = MODULE_GET_BTYPE(moduleid);
 	if ((bricktype == L1_BRICKTYPE_191010) ||
 	    (bricktype == L1_BRICKTYPE_1932))
-			sprintf(address, "%s^%d", address, geo_slot(geoid));
+			sprintf(address + strlen(address), "^%d",
+						geo_slot(geoid));
 }
 
 void __devinit