[3/6] x86: Minimize SRAT messages

Commit Message

Mike Travis Feb. 19, 2011, 2:47 a.m. UTC

None

Patch

--- linux.orig/arch/x86/mm/srat_64.c
+++ linux/arch/x86/mm/srat_64.c
@@ -110,6 +110,12 @@  void __init acpi_numa_slit_init(struct a
 	memblock_x86_reserve_range(phys, phys + length, "ACPI SLIT");
 }
 
+/*
+ * Keep track of previous node and PXM values to reduce clutter
+ * in message and reduce the byte count in the kernel log.
+ */
+static int __initdata last_node = -1, last_pxm = -1;
+
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
@@ -141,8 +147,17 @@  acpi_numa_x2apic_affinity_init(struct ac
 	set_apicid_to_node(apic_id, node);
 	node_set(node, cpu_nodes_parsed);
 	acpi_numa = 1;
-	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u\n",
-	       pxm, apic_id, node);
+	if (node != last_node) {
+		pr_info("SRAT: Node %u: PXM:APIC %u:%u",
+		       node, pxm, apic_id);
+		last_node = node;
+		last_pxm = pxm;
+	} else if (pxm != last_pxm) {
+		pr_cont(" %u:%u", pxm, apic_id);
+		last_pxm = pxm;
+	} else {
+		pr_cont(" :%u", apic_id);
+	}
 }
 
 /* Callback for Proximity Domain -> LAPIC mapping */
@@ -301,8 +316,7 @@  acpi_numa_memory_affinity_init(struct ac
 			nd->end = end;
 	}
 
-	printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
-	       start, end);
+	pr_info("SRAT: Node %u PXM %u %lx+%lx\n", node, pxm, start, end-start);
 
 	if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) {
 		update_nodes_add(node, start, end);
--- linux.orig/drivers/acpi/numa.c
+++ linux/drivers/acpi/numa.c
@@ -286,6 +286,9 @@  int __init acpi_numa_init(void)
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
 		acpi_table_parse_srat(ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY,
 				     acpi_parse_x2apic_affinity, 0);
+		/* insure trailing newline is output */
+		pr_cont("\n");
+
 		acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY,
 				     acpi_parse_processor_affinity, 0);
 		ret = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,