numa: move large array from stack to _initdata section

  * Move large array "struct bootnode nodes" from stack to _initdata
    section to reduce amount of stack space required.

Cc: H. Peter Anvin <[email protected]>
Signed-off-by: Mike Travis <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 2ea56f48f29b506c3a180bfd79b3bdb62bf5fd2c..3f6c53c0e003b6f2478a346a08634bbe73d404aa 100644 (file)
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -380,9 +380,10 @@ static int __init split_nodes_by_size(struct bootnode *nodes, u64 *addr,
  * Sets up the system RAM area from start_pfn to end_pfn according to the
  * numa=fake command-line option.
  */
+static struct bootnode nodes[MAX_NUMNODES] __initdata;
+
 static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn)
 {
-       struct bootnode nodes[MAX_NUMNODES];
        u64 size, addr = start_pfn << PAGE_SHIFT;
        u64 max_addr = end_pfn << PAGE_SHIFT;
        int num_nodes = 0, num = 0, coeff_flag, coeff = -1, i;