[IA64] support for cpu0 removal

here is the BSP removal support for IA64. Its pretty much the same thing that
was released a while back, but has your feedback incorporated.

- Removed CONFIG_BSP_REMOVE_WORKAROUND and associated cmdline param
- Fixed compile issue with sn2/zx1 due to a undefined fix_b0_for_bsp
- some formatting nits (whitespace etc)

This has been tested on tiger and long back by alex on hp systems as well.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index acaaec4e4681..9855ba318094 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -181,13 +181,15 @@ per_cpu_init (void)
 {
         void *cpu_data;
         int cpu;
+        static int first_time=1;
 
         /*
          * get_free_pages() cannot be used before cpu_init() done.  BSP
          * allocates "NR_CPUS" pages for all CPUs to avoid that AP calls
          * get_zeroed_page().
          */
-        if (smp_processor_id() == 0) {
+        if (first_time) {
+                first_time=0;
                 cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * NR_CPUS,
                                            PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
                 for (cpu = 0; cpu < NR_CPUS; cpu++) {