paravirt: unstatic leave_mm

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@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index 6299c080f6e2e3ce9e003a28314278f0eaa5a974..2d35d8502029c3d50e08e57fbf140844593af091 100644 (file)
--- 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 unsigned long flush_va;
 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();

diff --git a/include/asm-i386/mmu_context.h b/include/asm-i386/mmu_context.h
index 8198d1cca1f31264dc6b0ee4da90cdd0c13cd323..7eb0b0b1fb3c3e24899eaa3ba0fa378857f77e62 100644 (file)
--- a/include/asm-i386/mmu_context.h
+++ b/include/asm-i386/mmu_context.h
@@ -32,6 +32,8 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 #endif
 }
 
+void leave_mm(unsigned long cpu);
+
 static inline void switch_mm(struct mm_struct *prev,
                             struct mm_struct *next,
                             struct task_struct *tsk)