Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-7

Conflicts:
	include/linux/ftrace_event.h
	include/trace/ftrace.h
	kernel/trace/trace_event_perf.c
	kernel/trace/trace_kprobe.c
	kernel/trace/trace_syscalls.c

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2 files changed, 14 insertions, 122 deletions

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 417312528ddf..371dc564e2e4 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -3626,14 +3626,15 @@ static void intel_iommu_detach_device(struct iommu_domain *domain,
         domain_remove_one_dev_info(dmar_domain, pdev);
 }
 
-static int intel_iommu_map_range(struct iommu_domain *domain,
-                                 unsigned long iova, phys_addr_t hpa,
-                                 size_t size, int iommu_prot)
+static int intel_iommu_map(struct iommu_domain *domain,
+                           unsigned long iova, phys_addr_t hpa,
+                           int gfp_order, int iommu_prot)
 {
         struct dmar_domain *dmar_domain = domain->priv;
         u64 max_addr;
         int addr_width;
         int prot = 0;
+        size_t size;
         int ret;
 
         if (iommu_prot & IOMMU_READ)
@@ -3643,6 +3644,7 @@ static int intel_iommu_map_range(struct iommu_domain *domain,
         if ((iommu_prot & IOMMU_CACHE) && dmar_domain->iommu_snooping)
                 prot |= DMA_PTE_SNP;
 
+        size     = PAGE_SIZE << gfp_order;
         max_addr = iova + size;
         if (dmar_domain->max_addr < max_addr) {
                 int min_agaw;
@@ -3669,19 +3671,19 @@ static int intel_iommu_map_range(struct iommu_domain *domain,
         return ret;
 }
 
-static void intel_iommu_unmap_range(struct iommu_domain *domain,
-                                    unsigned long iova, size_t size)
+static int intel_iommu_unmap(struct iommu_domain *domain,
+                             unsigned long iova, int gfp_order)
 {
         struct dmar_domain *dmar_domain = domain->priv;
-
-        if (!size)
-                return;
+        size_t size = PAGE_SIZE << gfp_order;
 
         dma_pte_clear_range(dmar_domain, iova >> VTD_PAGE_SHIFT,
                             (iova + size - 1) >> VTD_PAGE_SHIFT);
 
         if (dmar_domain->max_addr == iova + size)
                 dmar_domain->max_addr = iova;
+
+        return gfp_order;
 }
 
 static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain,
@@ -3714,8 +3716,8 @@ static struct iommu_ops intel_iommu_ops = {
         .domain_destroy = intel_iommu_domain_destroy,
         .attach_dev     = intel_iommu_attach_device,
         .detach_dev     = intel_iommu_detach_device,
-        .map            = intel_iommu_map_range,
-        .unmap          = intel_iommu_unmap_range,
+        .map            = intel_iommu_map,
+        .unmap          = intel_iommu_unmap,
         .iova_to_phys   = intel_iommu_iova_to_phys,
         .domain_has_cap = intel_iommu_domain_has_cap,
 };
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 4fe36d2e1049..19b111383f62 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -838,65 +838,11 @@ static void pci_bus_dump_resources(struct pci_bus *bus)
         }
 }
 
-static int __init pci_bus_get_depth(struct pci_bus *bus)
-{
-        int depth = 0;
-        struct pci_dev *dev;
-
-        list_for_each_entry(dev, &bus->devices, bus_list) {
-                int ret;
-                struct pci_bus *b = dev->subordinate;
-                if (!b)
-                        continue;
-
-                ret = pci_bus_get_depth(b);
-                if (ret + 1 > depth)
-                        depth = ret + 1;
-        }
-
-        return depth;
-}
-static int __init pci_get_max_depth(void)
-{
-        int depth = 0;
-        struct pci_bus *bus;
-
-        list_for_each_entry(bus, &pci_root_buses, node) {
-                int ret;
-
-                ret = pci_bus_get_depth(bus);
-                if (ret > depth)
-                        depth = ret;
-        }
-
-        return depth;
-}
-
-/*
- * first try will not touch pci bridge res
- * second  and later try will clear small leaf bridge res
- * will stop till to the max  deepth if can not find good one
- */
 void __init
 pci_assign_unassigned_resources(void)
 {
         struct pci_bus *bus;
-        int tried_times = 0;
-        enum release_type rel_type = leaf_only;
-        struct resource_list_x head, *list;
-        unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
-                                  IORESOURCE_PREFETCH;
-        unsigned long failed_type;
-        int max_depth = pci_get_max_depth();
-        int pci_try_num;
 
-        head.next = NULL;
-
-        pci_try_num = max_depth + 1;
-        printk(KERN_DEBUG "PCI: max bus depth: %d pci_try_num: %d\n",
-                 max_depth, pci_try_num);
-
-again:
         /* Depth first, calculate sizes and alignments of all
            subordinate buses. */
         list_for_each_entry(bus, &pci_root_buses, node) {
@@ -904,65 +850,9 @@ again:
         }
         /* Depth last, allocate resources and update the hardware. */
         list_for_each_entry(bus, &pci_root_buses, node) {
-                __pci_bus_assign_resources(bus, &head);
-        }
-        tried_times++;
-
-        /* any device complain? */
-        if (!head.next)
-                goto enable_and_dump;
-        failed_type = 0;
-        for (list = head.next; list;) {
-                failed_type |= list->flags;
-                list = list->next;
-        }
-        /*
-         * io port are tight, don't try extra
-         * or if reach the limit, don't want to try more
-         */
-        failed_type &= type_mask;
-        if ((failed_type == IORESOURCE_IO) || (tried_times >= pci_try_num)) {
-                free_failed_list(&head);
-                goto enable_and_dump;
-        }
-
-        printk(KERN_DEBUG "PCI: No. %d try to assign unassigned res\n",
-                         tried_times + 1);
-
-        /* third times and later will not check if it is leaf */
-        if ((tried_times + 1) > 2)
-                rel_type = whole_subtree;
-
-        /*
-         * Try to release leaf bridge's resources that doesn't fit resource of
-         * child device under that bridge
-         */
-        for (list = head.next; list;) {
-                bus = list->dev->bus;
-                pci_bus_release_bridge_resources(bus, list->flags & type_mask,
-                                                  rel_type);
-                list = list->next;
-        }
-        /* restore size and flags */
-        for (list = head.next; list;) {
-                struct resource *res = list->res;
-
-                res->start = list->start;
-                res->end = list->end;
-                res->flags = list->flags;
-                if (list->dev->subordinate)
-                        res->flags = 0;
-
-                list = list->next;
-        }
-        free_failed_list(&head);
-
-        goto again;
-
-enable_and_dump:
-        /* Depth last, update the hardware. */
-        list_for_each_entry(bus, &pci_root_buses, node)
+                pci_bus_assign_resources(bus);
                 pci_enable_bridges(bus);
+        }
 
         /* dump the resource on buses */
         list_for_each_entry(bus, &pci_root_buses, node) {