x86: use static _cpu_pda array

_cpu_pda array first uses statically allocated storage in data.init
and then switches to allocated bootmem to conserve space.  However,
after folding pda area into percpu area, _cpu_pda array will be
removed completely.  Drop the reallocation part to simplify the code
for soon-to-follow changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 12 deletions

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 76ffba2aa66d..462d0beccb6b 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -29,20 +29,8 @@
 /* boot cpu pda, referenced by head_64.S to initialize %gs for boot CPU */
 struct x8664_pda _boot_cpu_pda;
 
-#ifdef CONFIG_SMP
-/*
- * We install an empty cpu_pda pointer table to indicate to early users
- * (numa_set_node) that the cpu_pda pointer table for cpus other than
- * the boot cpu is not yet setup.
- */
-static struct x8664_pda *__cpu_pda[NR_CPUS] __initdata;
-#else
-static struct x8664_pda *__cpu_pda[NR_CPUS] __read_mostly;
-#endif
-
 void __init x86_64_init_pda(void)
 {
-        _cpu_pda = __cpu_pda;
         cpu_pda(0) = &_boot_cpu_pda;
         cpu_pda(0)->data_offset =
                 (unsigned long)(__per_cpu_load - __per_cpu_start);