Merge tag 'v3.15-rc1' into perf/urgent

Pick up the latest fixes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

15 files changed, 67 insertions, 77 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 0c8e553e0b9f..12c3afee0f6f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -21,6 +21,7 @@ config IA64
         select HAVE_FUNCTION_TRACER
         select HAVE_DMA_ATTRS
         select HAVE_KVM
+        select TTY
         select HAVE_ARCH_TRACEHOOK
         select HAVE_DMA_API_DEBUG
         select HAVE_MEMBLOCK
@@ -44,6 +45,7 @@ config IA64
         select HAVE_MOD_ARCH_SPECIFIC
         select MODULES_USE_ELF_RELA
         select ARCH_USE_CMPXCHG_LOCKREF
+        select HAVE_ARCH_AUDITSYSCALL
         default y
         help
           The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig
index 6404acbb84b2..b4efaf2bc13e 100644
--- a/arch/ia64/configs/generic_defconfig
+++ b/arch/ia64/configs/generic_defconfig
@@ -25,7 +25,6 @@ CONFIG_KEXEC=y
 CONFIG_CRASH_DUMP=y
 CONFIG_EFI_VARS=y
 CONFIG_BINFMT_MISC=m
-CONFIG_ACPI_PROCFS=y
 CONFIG_ACPI_BUTTON=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_DOCK=y
diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
index 0f4e9e41f130..0fed9ae5a42a 100644
--- a/arch/ia64/configs/tiger_defconfig
+++ b/arch/ia64/configs/tiger_defconfig
@@ -26,7 +26,6 @@ CONFIG_IA64_PALINFO=y
 CONFIG_KEXEC=y
 CONFIG_EFI_VARS=y
 CONFIG_BINFMT_MISC=m
-CONFIG_ACPI_PROCFS=y
 CONFIG_ACPI_BUTTON=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig
index fc7aba07c2b4..54bc72eda30d 100644
--- a/arch/ia64/configs/zx1_defconfig
+++ b/arch/ia64/configs/zx1_defconfig
@@ -16,7 +16,6 @@ CONFIG_IA64_PALINFO=y
 CONFIG_CRASH_DUMP=y
 CONFIG_EFI_VARS=y
 CONFIG_BINFMT_MISC=y
-CONFIG_ACPI_PROCFS=y
 CONFIG_HOTPLUG_PCI=y
 CONFIG_HOTPLUG_PCI_ACPI=y
 CONFIG_PACKET=y
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 30c43d39dede..1a871b78e570 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1140,11 +1140,13 @@ sba_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 
 #ifdef CONFIG_NUMA
         {
+                int node = ioc->node;
                 struct page *page;
-                page = alloc_pages_exact_node(ioc->node == MAX_NUMNODES ?
-                                        numa_node_id() : ioc->node, flags,
-                                        get_order(size));
 
+                if (node == NUMA_NO_NODE)
+                        node = numa_node_id();
+
+                page = alloc_pages_exact_node(node, flags, get_order(size));
                 if (unlikely(!page))
                         return NULL;
 
@@ -1914,7 +1916,7 @@ ioc_show(struct seq_file *s, void *v)
         seq_printf(s, "Hewlett Packard %s IOC rev %d.%d\n",
                 ioc->name, ((ioc->rev >> 4) & 0xF), (ioc->rev & 0xF));
 #ifdef CONFIG_NUMA
-        if (ioc->node != MAX_NUMNODES)
+        if (ioc->node != NUMA_NO_NODE)
                 seq_printf(s, "NUMA node       : %d\n", ioc->node);
 #endif
         seq_printf(s, "IOVA size       : %ld MB\n", ((ioc->pdir_size >> 3) * iovp_size)/(1024*1024));
@@ -2015,31 +2017,19 @@ sba_connect_bus(struct pci_bus *bus)
         printk(KERN_WARNING "No IOC for PCI Bus %04x:%02x in ACPI\n", pci_domain_nr(bus), bus->number);
 }
 
-#ifdef CONFIG_NUMA
 static void __init
 sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
 {
+#ifdef CONFIG_NUMA
         unsigned int node;
-        int pxm;
-
-        ioc->node = MAX_NUMNODES;
-
-        pxm = acpi_get_pxm(handle);
-
-        if (pxm < 0)
-                return;
-
-        node = pxm_to_node(pxm);
 
-        if (node >= MAX_NUMNODES || !node_online(node))
-                return;
+        node = acpi_get_node(handle);
+        if (node != NUMA_NO_NODE && !node_online(node))
+                node = NUMA_NO_NODE;
 
         ioc->node = node;
-        return;
-}
-#else
-#define sba_map_ioc_to_node(ioc, handle)
 #endif
+}
 
 static int
 acpi_sba_ioc_add(struct acpi_device *device,
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 71fbaaa495cc..7d41cc089822 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -98,7 +98,7 @@ struct pci_controller {
         struct acpi_device *companion;
         void *iommu;
         int segment;
-        int node;               /* nearest node with memory or -1 for global allocation */
+        int node;               /* nearest node with memory or NUMA_NO_NODE for global allocation */
 
         void *platform_data;
 };
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 07d209c9507f..0d407b300762 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -54,10 +54,6 @@
 #include <asm/sal.h>
 #include <asm/cyclone.h>
 
-#define BAD_MADT_ENTRY(entry, end) (                                        \
-                (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
-                ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
-
 #define PREFIX                  "ACPI: "
 
 unsigned int acpi_cpei_override;
@@ -803,14 +799,9 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
  *  ACPI based hotplug CPU support
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
-static
-int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 {
 #ifdef CONFIG_ACPI_NUMA
-        int pxm_id;
-        int nid;
-
-        pxm_id = acpi_get_pxm(handle);
         /*
          * We don't have cpu-only-node hotadd. But if the system equips
          * SRAT table, pxm is already found and node is ready.
@@ -818,11 +809,10 @@ int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
          * This code here is for the system which doesn't have full SRAT
          * table for possible cpus.
          */
-        nid = acpi_map_pxm_to_node(pxm_id);
         node_cpuid[cpu].phys_id = physid;
-        node_cpuid[cpu].nid = nid;
+        node_cpuid[cpu].nid = acpi_get_node(handle);
 #endif
-        return (0);
+        return 0;
 }
 
 int additional_cpus __initdata = -1;
@@ -929,7 +919,7 @@ static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
         union acpi_object *obj;
         struct acpi_madt_io_sapic *iosapic;
         unsigned int gsi_base;
-        int pxm, node;
+        int node;
 
         /* Only care about objects w/ a method that returns the MADT */
         if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
@@ -956,17 +946,9 @@ static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
 
         kfree(buffer.pointer);
 
-        /*
-         * OK, it's an IOSAPIC MADT entry, look for a _PXM value to tell
-         * us which node to associate this with.
-         */
-        pxm = acpi_get_pxm(handle);
-        if (pxm < 0)
-                return AE_OK;
-
-        node = pxm_to_node(pxm);
-
-        if (node >= MAX_NUMNODES || !node_online(node) ||
+        /* OK, it's an IOSAPIC MADT entry; associate it with a node */
+        node = acpi_get_node(handle);
+        if (node == NUMA_NO_NODE || !node_online(node) ||
             cpumask_empty(cpumask_of_node(node)))
                 return AE_OK;
 
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index f59c0b844e88..0c161ed6d18e 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -269,12 +269,17 @@ err_inject_init(void)
 #ifdef ERR_INJ_DEBUG
         printk(KERN_INFO "Enter error injection driver.\n");
 #endif
+
+        cpu_notifier_register_begin();
+
         for_each_online_cpu(i) {
                 err_inject_cpu_callback(&err_inject_cpu_notifier, CPU_ONLINE,
                                 (void *)(long)i);
         }
 
-        register_hotcpu_notifier(&err_inject_cpu_notifier);
+        __register_hotcpu_notifier(&err_inject_cpu_notifier);
+
+        cpu_notifier_register_done();
 
         return 0;
 }
@@ -288,11 +293,17 @@ err_inject_exit(void)
 #ifdef ERR_INJ_DEBUG
         printk(KERN_INFO "Exit error injection driver.\n");
 #endif
+
+        cpu_notifier_register_begin();
+
         for_each_online_cpu(i) {
                 sys_dev = get_cpu_device(i);
                 sysfs_remove_group(&sys_dev->kobj, &err_inject_attr_group);
         }
-        unregister_hotcpu_notifier(&err_inject_cpu_notifier);
+
+        __unregister_hotcpu_notifier(&err_inject_cpu_notifier);
+
+        cpu_notifier_register_done();
 }
 
 module_init(err_inject_init);
diff --git a/arch/ia64/kernel/ftrace.c b/arch/ia64/kernel/ftrace.c
index 7fc8c961b1f7..3b0c2aa07857 100644
--- a/arch/ia64/kernel/ftrace.c
+++ b/arch/ia64/kernel/ftrace.c
@@ -198,9 +198,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 }
 
 /* run from kstop_machine */
-int __init ftrace_dyn_arch_init(void *data)
+int __init ftrace_dyn_arch_init(void)
 {
-        *(unsigned long *)data = 0;
-
         return 0;
 }
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index ab333284f4b2..c39c3cd3ac34 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -996,13 +996,17 @@ palinfo_init(void)
         if (!palinfo_dir)
                 return -ENOMEM;
 
+        cpu_notifier_register_begin();
+
         /* Create palinfo dirs in /proc for all online cpus */
         for_each_online_cpu(i) {
                 create_palinfo_proc_entries(i);
         }
 
         /* Register for future delivery via notify registration */
-        register_hotcpu_notifier(&palinfo_cpu_notifier);
+        __register_hotcpu_notifier(&palinfo_cpu_notifier);
+
+        cpu_notifier_register_done();
 
         return 0;
 }
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index 960a396f5929..ee9719eebb1e 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -635,6 +635,8 @@ salinfo_init(void)
                                            (void *)salinfo_entries[i].feature);
         }
 
+        cpu_notifier_register_begin();
+
         for (i = 0; i < ARRAY_SIZE(salinfo_log_name); i++) {
                 data = salinfo_data + i;
                 data->type = i;
@@ -669,7 +671,9 @@ salinfo_init(void)
         salinfo_timer.function = &salinfo_timeout;
         add_timer(&salinfo_timer);
 
-        register_hotcpu_notifier(&salinfo_cpu_notifier);
+        __register_hotcpu_notifier(&salinfo_cpu_notifier);
+
+        cpu_notifier_register_done();
 
         return 0;
 }
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index ca69a5a96dcc..f295f9abba4b 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -454,12 +454,16 @@ static int __init cache_sysfs_init(void)
 {
         int i;
 
+        cpu_notifier_register_begin();
+
         for_each_online_cpu(i) {
                 struct device *sys_dev = get_cpu_device((unsigned int)i);
                 cache_add_dev(sys_dev);
         }
 
-        register_hotcpu_notifier(&cache_cpu_notifier);
+        __register_hotcpu_notifier(&cache_cpu_notifier);
+
+        cpu_notifier_register_done();
 
         return 0;
 }
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 53f44bee9ebb..6a4309bb821a 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -199,6 +199,7 @@ int kvm_dev_ioctl_check_extension(long ext)
         case KVM_CAP_IRQCHIP:
         case KVM_CAP_MP_STATE:
         case KVM_CAP_IRQ_INJECT_STATUS:
+        case KVM_CAP_IOAPIC_POLARITY_IGNORED:
                 r = 1;
                 break;
         case KVM_CAP_COALESCED_MMIO:
diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c
index 5dc969dd4ac0..eee069a0b539 100644
--- a/arch/ia64/pci/fixup.c
+++ b/arch/ia64/pci/fixup.c
@@ -5,6 +5,7 @@
 
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/vgaarb.h>
 
 #include <asm/machvec.h>
 
@@ -19,9 +20,10 @@
  * IORESOURCE_ROM_SHADOW is used to associate the boot video
  * card with this copy. On laptops this copy has to be used since
  * the main ROM may be compressed or combined with another image.
- * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW
- * is marked here since the boot video device will be the only enabled
- * video device at this point.
+ * See pci_map_rom() for use of this flag. Before marking the device
+ * with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set
+ * by either arch cde or vga-arbitration, if so only apply the fixup to this
+ * already determined primary video card.
  */
 
 static void pci_fixup_video(struct pci_dev *pdev)
@@ -35,9 +37,6 @@ static void pci_fixup_video(struct pci_dev *pdev)
                 return;
         /* Maybe, this machine supports legacy memory map. */
 
-        if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
-                return;
-
         /* Is VGA routed to us? */
         bus = pdev->bus;
         while (bus) {
@@ -60,10 +59,14 @@ static void pci_fixup_video(struct pci_dev *pdev)
                 }
                 bus = bus->parent;
         }
-        pci_read_config_word(pdev, PCI_COMMAND, &config);
-        if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
-                pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
-                dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n");
+        if (!vga_default_device() || pdev == vga_default_device()) {
+                pci_read_config_word(pdev, PCI_COMMAND, &config);
+                if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
+                        pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
+                        dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n");
+                        vga_set_default_device(pdev);
+                }
         }
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+                                PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_video);
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 9e4938d8ca4d..291a582777cf 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -126,7 +126,6 @@ static struct pci_controller *alloc_pci_controller(int seg)
                 return NULL;
 
         controller->segment = seg;
-        controller->node = -1;
         return controller;
 }
 
@@ -430,19 +429,14 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
         struct pci_root_info *info = NULL;
         int busnum = root->secondary.start;
         struct pci_bus *pbus;
-        int pxm, ret;
+        int ret;
 
         controller = alloc_pci_controller(domain);
         if (!controller)
                 return NULL;
 
         controller->companion = device;
-
-        pxm = acpi_get_pxm(device->handle);
-#ifdef CONFIG_NUMA
-        if (pxm >= 0)
-                controller->node = pxm_to_node(pxm);
-#endif
+        controller->node = acpi_get_node(device->handle);
 
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (!info) {