diff options
| author | Tejun Heo <tj@kernel.org> | 2011-02-16 11:13:06 (GMT) |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-02-16 11:13:06 (GMT) |
| commit | 13081df5dd6eae1951a3c398fa17d3ed2037a78f (patch) | |
| tree | 4819da277060fff69ea7bfa13154f4648b34d477 | |
| parent | 7d36b7bc9022f35f95cd85cdf441846298e8f9fb (diff) | |
| download | linux-13081df5dd6eae1951a3c398fa17d3ed2037a78f.tar.xz | |
x86-64, NUMA: Simplify hotplug node handling in acpi_numa_memory_affinity_init()
Hotplug node handling in acpi_numa_memory_affinity_init() was
unnecessarily complicated with storing the original nodes[] entry and
restoring it afterwards. Simplify it by not modifying the nodes[]
entry for hotplug nodes from the beginning.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | arch/x86/mm/srat_64.c | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index 23498f8..988b0b70 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -251,7 +251,7 @@ update_nodes_add(int node, unsigned long start, unsigned long end) void __init acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) { - struct bootnode *nd, oldnode; + struct bootnode *nd; unsigned long start, end; int node, pxm; int i; @@ -289,28 +289,23 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) bad_srat(); return; } - nd = &nodes[node]; - oldnode = *nd; - if (!node_test_and_set(node, nodes_parsed)) { - nd->start = start; - nd->end = end; - } else { - if (start < nd->start) - nd->start = start; - if (nd->end < end) - nd->end = end; - } printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm, start, end); - if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) { + if (!(ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)) { + nd = &nodes[node]; + if (!node_test_and_set(node, nodes_parsed)) { + nd->start = start; + nd->end = end; + } else { + if (start < nd->start) + nd->start = start; + if (nd->end < end) + nd->end = end; + } + } else update_nodes_add(node, start, end); - /* restore nodes[node] */ - *nd = oldnode; - if ((nd->start | nd->end) == 0) - node_clear(node, nodes_parsed); - } node_memblk_range[num_node_memblks].start = start; node_memblk_range[num_node_memblks].end = end; |