[2.6.22 patch 4/4] x86_64: fix fake numa for machines with true srat

[David Rientjes]

Use the newly exported disable_srat() function to disable all SRAT 
detected values before registering emulated node active regions or calling
setup_node_bootmem().  This ensures we are correctly srat_disabled() since
we never call acpi_scan_nodes() in the emulated case, even on true SRAT 
machines.

Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
---
 arch/x86_64/mm/numa.c |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -463,6 +463,7 @@ done:
 		}
 	}
 out:
+	disable_srat();
 	memnode_shift = compute_hash_shift(nodes, num_nodes);
 	if (memnode_shift < 0) {
 		memnode_shift = 0;
@@ -470,12 +471,6 @@ out:
 		       "disabled.\n");
 		return -1;
 	}
-
-	/*
-	 * We need to vacate all active ranges that may have been registered by
-	 * SRAT.
-	 */
-	remove_all_active_ranges();
 	for_each_node_mask(i, node_possible_map) {
 		e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
 						nodes[i].end >> PAGE_SHIFT);
-
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