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-rw-r--r--arch/x86/mm/init.c18
-rw-r--r--arch/x86/mm/kmmio.c2
-rw-r--r--arch/x86/mm/numa_32.c2
-rw-r--r--arch/x86/mm/numa_64.c3
-rw-r--r--arch/x86/mm/srat_32.c2
-rw-r--r--arch/x86/mm/srat_64.c7
6 files changed, 29 insertions, 5 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index fd3da1dda1c..ae4f7b5d710 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -7,6 +7,7 @@
#include <asm/page.h>
#include <asm/page_types.h>
#include <asm/sections.h>
+#include <asm/setup.h>
#include <asm/system.h>
#include <asm/tlbflush.h>
@@ -304,8 +305,23 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
#endif
#ifdef CONFIG_X86_64
- if (!after_bootmem)
+ if (!after_bootmem && !start) {
+ pud_t *pud;
+ pmd_t *pmd;
+
mmu_cr4_features = read_cr4();
+
+ /*
+ * _brk_end cannot change anymore, but it and _end may be
+ * located on different 2M pages. cleanup_highmap(), however,
+ * can only consider _end when it runs, so destroy any
+ * mappings beyond _brk_end here.
+ */
+ pud = pud_offset(pgd_offset_k(_brk_end), _brk_end);
+ pmd = pmd_offset(pud, _brk_end - 1);
+ while (++pmd <= pmd_offset(pud, (unsigned long)_end - 1))
+ pmd_clear(pmd);
+ }
#endif
__flush_tlb_all();
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index 4f115e00486..50dc802a1c4 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -87,7 +87,7 @@ static struct kmmio_probe *get_kmmio_probe(unsigned long addr)
{
struct kmmio_probe *p;
list_for_each_entry_rcu(p, &kmmio_probes, list) {
- if (addr >= p->addr && addr <= (p->addr + p->len))
+ if (addr >= p->addr && addr < (p->addr + p->len))
return p;
}
return NULL;
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 3daefa04ace..d2530062fe0 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -257,7 +257,7 @@ void resume_map_numa_kva(pgd_t *pgd_base)
}
#endif
-static unsigned long calculate_numa_remap_pages(void)
+static __init unsigned long calculate_numa_remap_pages(void)
{
int nid;
unsigned long size, reserve_pages = 0;
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index d73aaa89237..2d05a12029d 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -188,6 +188,9 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
int nid;
+ if (!end)
+ return;
+
start = roundup(start, ZONE_ALIGN);
printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,
diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 16ae70fc57e..29a0e37114f 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -216,7 +216,7 @@ int __init get_memcfg_from_srat(void)
if (num_memory_chunks == 0) {
printk(KERN_WARNING
- "could not finy any ACPI SRAT memory areas.\n");
+ "could not find any ACPI SRAT memory areas.\n");
goto out_fail;
}
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index c7d272b8574..01765955baa 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -28,6 +28,7 @@ int acpi_numa __initdata;
static struct acpi_table_slit *acpi_slit;
static nodemask_t nodes_parsed __initdata;
+static nodemask_t cpu_nodes_parsed __initdata;
static struct bootnode nodes[MAX_NUMNODES] __initdata;
static struct bootnode nodes_add[MAX_NUMNODES];
static int found_add_area __initdata;
@@ -141,6 +142,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
apic_id = pa->apic_id;
apicid_to_node[apic_id] = node;
+ node_set(node, cpu_nodes_parsed);
acpi_numa = 1;
printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n",
pxm, apic_id, node);
@@ -174,6 +176,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
else
apic_id = pa->apic_id;
apicid_to_node[apic_id] = node;
+ node_set(node, cpu_nodes_parsed);
acpi_numa = 1;
printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n",
pxm, apic_id, node);
@@ -358,6 +361,7 @@ static void __init unparse_node(int node)
{
int i;
node_clear(node, nodes_parsed);
+ node_clear(node, cpu_nodes_parsed);
for (i = 0; i < MAX_LOCAL_APIC; i++) {
if (apicid_to_node[i] == node)
apicid_to_node[i] = NUMA_NO_NODE;
@@ -402,7 +406,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
return -1;
}
- node_possible_map = nodes_parsed;
+ /* Account for nodes with cpus and no memory */
+ nodes_or(node_possible_map, nodes_parsed, cpu_nodes_parsed);
/* Finally register nodes */
for_each_node_mask(i, node_possible_map)