X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-sparc64%2Fmmu_context.h;h=5693ab4826067056873803b6324b437e6275453f;hb=b3363997a62d67f76f388c629673094935209d16;hp=2337eb48771908ca86f94a1a5d4cba3d42c0e43d;hpb=2e1ca21d46aaef95101723fa402f39d3a95aba59;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-sparc64/mmu_context.h b/include/asm-sparc64/mmu_context.h
index 2337eb48771..5693ab48260 100644
--- a/include/asm-sparc64/mmu_context.h
+++ b/include/asm-sparc64/mmu_context.h
@@ -1,4 +1,3 @@
-/* $Id: mmu_context.h,v 1.54 2002/02/09 19:49:31 davem Exp $ */
 #ifndef __SPARC64_MMU_CONTEXT_H
 #define __SPARC64_MMU_CONTEXT_H
 
@@ -9,6 +8,7 @@
 #include <linux/spinlock.h>
 #include <asm/system.h>
 #include <asm/spitfire.h>
+#include <asm-generic/mm_hooks.h>
 
 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 {
@@ -75,6 +75,9 @@ static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, str
 	unsigned long ctx_valid, flags;
 	int cpu;
 
+	if (unlikely(mm == &init_mm))
+		return;
+
 	spin_lock_irqsave(&mm->context.lock, flags);
 	ctx_valid = CTX_VALID(mm->context);
 	if (!ctx_valid)