Commit 53787013 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Jeremy Fitzhardinge
Browse files

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: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: default avatarChris Wright <chrisw@sous-sol.org>
parent 03f0c2f9

arch/i386/kernel/smp.c

+3 −2
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 


#include <asm/mtrr.h>

#include <asm/tlbflush.h>

#include <asm/mmu_context.h>

#include <mach_apic.h>



/*
@@ -255,7 +256,7 @@ static DEFINE_SPINLOCK(tlbstate_lock); 
 * 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();

include/asm-i386/mmu_context.h

+2 −0
Original line number Diff line number Diff line
@@ -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)