Merge agluck-lia64.sc.intel.com:/data/home/aegl/BK/work/ian

into agluck-lia64.sc.intel.com:/data/home/aegl/BK/linux-ia64-release-2.6.9

include/asm-ia64/mmu_context.h

@@ -28,36 +28,6 @@
 
 #include <asm/processor.h>
 
-#define MMU_CONTEXT_DEBUG	0
-
-#if MMU_CONTEXT_DEBUG
-
-#include <ia64intrin.h>
-
-extern struct mmu_trace_entry {
-	char op;
-	u8 cpu;
-	u32 context;
-	void *mm;
-} mmu_tbuf[1024];
-
-extern volatile int mmu_tbuf_index;
-
-# define MMU_TRACE(_op,_cpu,_mm,_ctx)							\
-do {											\
-	int i = __sync_fetch_and_add(&mmu_tbuf_index, 1) % ARRAY_SIZE(mmu_tbuf);	\
-	struct mmu_trace_entry e;							\
-	e.op = (_op);									\
-	e.cpu = (_cpu);									\
-	e.mm = (_mm);									\
-	e.context = (_ctx);								\
-	mmu_tbuf[i] = e;								\
-} while (0)
-
-#else
-# define MMU_TRACE(op,cpu,mm,ctx)	do { ; } while (0)
-#endif
-
 struct ia64_ctx {
 	spinlock_t lock;
 	unsigned int next;	/* next context number to use */
@@ -123,7 +93,6 @@ get_mmu_context (struct mm_struct *mm)
 static inline int
 init_new_context (struct task_struct *p, struct mm_struct *mm)
 {
-	MMU_TRACE('N', smp_processor_id(), mm, 0);
 	mm->context = 0;
 	return 0;
 }
@@ -132,7 +101,6 @@ static inline void
 destroy_context (struct mm_struct *mm)
 {
 	/* Nothing to do.  */
-	MMU_TRACE('D', smp_processor_id(), mm, mm->context);
 }
 
 static inline void
@@ -171,19 +139,14 @@ activate_context (struct mm_struct *mm)
 
 	do {
 		context = get_mmu_context(mm);
-		MMU_TRACE('A', smp_processor_id(), mm, context);
 		if (!cpu_isset(smp_processor_id(), mm->cpu_vm_mask))
 			cpu_set(smp_processor_id(), mm->cpu_vm_mask);
 		reload_context(context);
-		MMU_TRACE('a', smp_processor_id(), mm, context);
 		/* in the unlikely event of a TLB-flush by another thread, redo the load: */
 	} while (unlikely(context != mm->context));
 }
 
-#define deactivate_mm(tsk,mm)					\
-do {								\
-	MMU_TRACE('d', smp_processor_id(), mm, mm->context);	\
-} while (0)
+#define deactivate_mm(tsk,mm)	do { } while (0)
 
 /*
  * Switch from address space PREV to address space NEXT.

include/asm-ia64/page.h

@@ -84,6 +84,13 @@ extern int ia64_pfn_valid (unsigned long pfn);
 #endif
 
 #ifndef CONFIG_DISCONTIGMEM
+# ifdef CONFIG_VIRTUAL_MEM_MAP
+extern struct page *vmem_map;
+#  define pfn_valid(pfn)       (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
+#  define page_to_pfn(page)    ((unsigned long) (page - vmem_map))
+#  define pfn_to_page(pfn)     (vmem_map + (pfn))
+# endif
+#else /* !CONFIG_VIRTUAL_MEM_MAP */
 #define pfn_valid(pfn)		(((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
 #define page_to_pfn(page)	((unsigned long) (page - mem_map))
 #define pfn_to_page(pfn)	(mem_map + (pfn))

include/asm-ia64/tlbflush.h

@@ -48,22 +48,19 @@ local_finish_flush_tlb_mm (struct mm_struct *mm)
 static inline void
 flush_tlb_mm (struct mm_struct *mm)
 {
-	MMU_TRACE('F', smp_processor_id(), mm, mm->context);
 	if (!mm)
-		goto out;
+		return;
 
 	mm->context = 0;
 
 	if (atomic_read(&mm->mm_users) == 0)
-		goto out;		/* happens as a result of exit_mmap() */
+		return;		/* happens as a result of exit_mmap() */
 
 #ifdef CONFIG_SMP
 	smp_flush_tlb_mm(mm);
 #else
 	local_finish_flush_tlb_mm(mm);
 #endif
-  out:
-	MMU_TRACE('f', smp_processor_id(), mm, mm->context);
 }
 
 extern void flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long end);