[Xen-devel] [patch 10/44] paravirt: unstatic leave_mm

[Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>]

Make globally leave_mm visible, specifically so that Xen can use it to
shoot-down lazy uses of cr3.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>

---
 arch/i386/kernel/smp.c         |    5 +++--
 include/asm-i386/mmu_context.h |    2 ++
 2 files changed, 5 insertions(+), 2 deletions(-)

===================================================================
--- a/include/asm-i386/mmu_context.h
+++ b/include/asm-i386/mmu_context.h
@@ -31,6 +31,8 @@ static inline void enter_lazy_tlb(struct
                per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_LAZY;
 #endif
 }
+
+void leave_mm(unsigned long cpu);
 
 static inline void switch_mm(struct mm_struct *prev,
                             struct mm_struct *next,
===================================================================
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -22,6 +22,7 @@
 
 #include <asm/mtrr.h>
 #include <asm/tlbflush.h>
+#include <asm/mmu_context.h>
 #include <mach_apic.h>
 
 /*
@@ -249,13 +250,13 @@ static DEFINE_SPINLOCK(tlbstate_lock);
 static DEFINE_SPINLOCK(tlbstate_lock);
 
 /*
- * We cannot call mmdrop() because we are in interrupt context, 
+ * We cannot call mmdrop() because we are in interrupt context,
  * instead update mm->cpu_vm_mask.
  *
  * We need to reload %cr3 since the page tables may be going
  * away from under us..
  */
-static inline void leave_mm (unsigned long cpu)
+void leave_mm(unsigned long cpu)
 {
        if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
                BUG();

-- 


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