From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 14 Sep 2009 15:01:28 +0000 (-0700)
Subject: Merge branch 'x86-percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: v2.6.32-rc1~706
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=55e0715f612f19b44c17497929091df2f3357e5d;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

Merge branch 'x86-percpu-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, percpu: Collect hot percpu variables into one cacheline
  x86, percpu: Fix DECLARE/DEFINE_PER_CPU_PAGE_ALIGNED()
  x86, percpu: Add 'percpu_read_stable()' interface for cacheable accesses
---

55e0715f612f19b44c17497929091df2f3357e5d
diff --cc arch/x86/kernel/cpu/common.c
index 55a6abe,1bd88ed..2055fc2
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@@ -1042,8 -1049,11 +1049,11 @@@ DEFINE_PER_CPU(struct orig_ist, orig_is
  
  #else	/* CONFIG_X86_64 */
  
+ DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task;
+ EXPORT_PER_CPU_SYMBOL(current_task);
+ 
  #ifdef CONFIG_CC_STACKPROTECTOR
 -DEFINE_PER_CPU(unsigned long, stack_canary);
 +DEFINE_PER_CPU_ALIGNED(struct stack_canary, stack_canary);
  #endif
  
  /* Make sure %fs and %gs are initialized properly in idle threads */