src/patches/suse-2.6.27.25/patches.xen/xen-x86-no-lazy-tlb

   1 From: jbeulich@novell.com
   2 Subject: ensure inadvertent uses of lazy TLB data are caught during the build
   3 Patch-mainline: obsolete
   4
   5 Index: head-2008-11-17/arch/x86/kernel/cpu/common_64-xen.c
   6 ===================================================================
   7 --- head-2008-11-17.orig/arch/x86/kernel/cpu/common_64-xen.c    2008-11-17 14:06:21.000000000 +0100
   8 +++ head-2008-11-17/arch/x86/kernel/cpu/common_64-xen.c 2008-11-17 14:07:10.000000000 +0100
   9 @@ -557,8 +557,10 @@ void pda_init(int cpu)
  10         pda->irqcount = -1;
  11         pda->kernelstack = (unsigned long)stack_thread_info() -
  12                                  PDA_STACKOFFSET + THREAD_SIZE;
  13 +#ifndef CONFIG_XEN
  14         pda->active_mm = &init_mm;
  15         pda->mmu_state = 0;
  16 +#endif
  17
  18         if (cpu == 0) {
  19                 /* others are initialized in smpboot.c */
  20 Index: head-2008-11-17/include/asm-x86/mach-xen/asm/tlbflush.h
  21 ===================================================================
  22 --- head-2008-11-17.orig/include/asm-x86/mach-xen/asm/tlbflush.h        2008-11-17 13:41:59.000000000 +0100
  23 +++ head-2008-11-17/include/asm-x86/mach-xen/asm/tlbflush.h     2008-11-17 14:07:10.000000000 +0100
  24 @@ -82,6 +82,7 @@ static inline void flush_tlb_range(struc
  25         flush_tlb_mm(vma->vm_mm);
  26  }
  27
  28 +#ifndef CONFIG_XEN
  29  #define TLBSTATE_OK    1
  30  #define TLBSTATE_LAZY  2
  31
  32 @@ -93,6 +94,7 @@ struct tlb_state {
  33  };
  34  DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate);
  35  #endif
  36 +#endif
  37
  38  #endif /* SMP */
  39
  40 Index: head-2008-11-17/include/asm-x86/pda.h
  41 ===================================================================
  42 --- head-2008-11-17.orig/include/asm-x86/pda.h  2008-11-17 13:15:55.000000000 +0100
  43 +++ head-2008-11-17/include/asm-x86/pda.h       2008-11-17 14:07:10.000000000 +0100
  44 @@ -26,9 +26,13 @@ struct x8664_pda {
  45         short in_bootmem;               /* pda lives in bootmem */
  46         unsigned int __softirq_pending;
  47         unsigned int __nmi_count;       /* number of NMI on this CPUs */
  48 +#ifndef CONFIG_XEN
  49         short mmu_state;
  50         short isidle;
  51         struct mm_struct *active_mm;
  52 +#else
  53 +       short isidle;
  54 +#endif
  55         unsigned apic_timer_irqs;
  56         unsigned irq0_irqs;
  57         unsigned irq_resched_count;