[PATCH] x86_64: Print a boot message for hotplug memory zones

From: Keith Manning

Print a boot message for hotplug memory zones

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 5d01b31472e1..ec1c4aca4513 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -124,7 +124,6 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 
         if (srat_disabled() || ma->flags.enabled == 0)
                 return;
-        /* hotplug bit is ignored for now */
         pxm = ma->proximity_domain;
         node = setup_node(pxm);
         if (node < 0) {
@@ -134,6 +133,10 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
         }
         start = ma->base_addr_lo | ((u64)ma->base_addr_hi << 32);
         end = start + (ma->length_lo | ((u64)ma->length_hi << 32));
+        /* It is fine to add this area to the nodes data it will be used later*/
+        if (ma->flags.hot_pluggable == 1)
+                printk(KERN_INFO "SRAT: hot plug zone found %lx - %lx \n",
+                                start, end);
         i = conflicting_nodes(start, end);
         if (i >= 0) {
                 printk(KERN_ERR