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Subject[PATCH 3/6] x86: Minimize SRAT messages
Condense the SRAT: messages to show all APIC id's for the
node on a single line.

v1: Added pertinent __init & __initdata specifiers.
v2: updated to apply to x86-tip

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Jack Steiner <steiner@sgi.com>
Reviewed-by: Robin Holt <holt@sgi.com>
---
arch/x86/mm/srat_64.c | 22 ++++++++++++++++++----
drivers/acpi/numa.c | 3 +++
2 files changed, 21 insertions(+), 4 deletions(-)
--- 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,
--


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