Merge with rsync://fileserver/linux

Update to Linus latest

27 files changed, 146 insertions, 60 deletions

diff --git a/include/asm-x86_64/a.out.h b/include/asm-x86_64/a.out.h
index 5952914f412..7255cde0653 100644
--- a/include/asm-x86_64/a.out.h
+++ b/include/asm-x86_64/a.out.h
@@ -21,7 +21,7 @@ struct exec
 
 #ifdef __KERNEL__
 #include <linux/thread_info.h>
-#define STACK_TOP (test_thread_flag(TIF_IA32) ? IA32_PAGE_OFFSET : TASK_SIZE)
+#define STACK_TOP TASK_SIZE
 #endif
 
 #endif /* __A_OUT_GNU_H__ */
diff --git a/include/asm-x86_64/agp.h b/include/asm-x86_64/agp.h
index 0bb9019d58a..06c52ee9c06 100644
--- a/include/asm-x86_64/agp.h
+++ b/include/asm-x86_64/agp.h
@@ -19,4 +19,14 @@ int unmap_page_from_agp(struct page *page);
    worth it. Would need a page for it. */
 #define flush_agp_cache() asm volatile("wbinvd":::"memory")
 
+/* Convert a physical address to an address suitable for the GART. */
+#define phys_to_gart(x) (x)
+#define gart_to_phys(x) (x)
+
+/* GATT allocation. Returns/accepts GATT kernel virtual address. */
+#define alloc_gatt_pages(order)		\
+	((char *)__get_free_pages(GFP_KERNEL, (order)))
+#define free_gatt_pages(table, order)	\
+	free_pages((unsigned long)(table), (order))
+
 #endif
diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h
index e4b1017b8b2..16ec82e16b2 100644
--- a/include/asm-x86_64/apic.h
+++ b/include/asm-x86_64/apic.h
@@ -77,7 +77,7 @@ static inline void ack_APIC_irq(void)
 extern int get_maxlvt (void);
 extern void clear_local_APIC (void);
 extern void connect_bsp_APIC (void);
-extern void disconnect_bsp_APIC (void);
+extern void disconnect_bsp_APIC (int virt_wire_setup);
 extern void disable_local_APIC (void);
 extern int verify_local_APIC (void);
 extern void cache_APIC_registers (void);
diff --git a/include/asm-x86_64/apicdef.h b/include/asm-x86_64/apicdef.h
index bfebdb69065..9388062c4f6 100644
--- a/include/asm-x86_64/apicdef.h
+++ b/include/asm-x86_64/apicdef.h
@@ -94,7 +94,7 @@
 #define			SET_APIC_DELIVERY_MODE(x,y)	(((x)&~0x700)|((y)<<8))
 #define				APIC_MODE_FIXED		0x0
 #define				APIC_MODE_NMI		0x4
-#define				APIC_MODE_EXINT		0x7
+#define				APIC_MODE_EXTINT	0x7
 #define 	APIC_LVT1	0x360
 #define		APIC_LVTERR	0x370
 #define		APIC_TMICT	0x380
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h
index 5dd7727c756..a31bb99be53 100644
--- a/include/asm-x86_64/bitops.h
+++ b/include/asm-x86_64/bitops.h
@@ -411,8 +411,6 @@ static __inline__ int ffs(int x)
 /* find last set bit */
 #define fls(x) generic_fls(x)
 
-#define ARCH_HAS_ATOMIC_UNSIGNED 1
-
 #endif /* __KERNEL__ */
 
 #endif /* _X86_64_BITOPS_H */
diff --git a/include/asm-x86_64/bug.h b/include/asm-x86_64/bug.h
index bdbf66eab6e..3d2a666a5dd 100644
--- a/include/asm-x86_64/bug.h
+++ b/include/asm-x86_64/bug.h
@@ -21,6 +21,8 @@ struct bug_frame {
 	asm volatile("ud2 ; .quad %c1 ; .short %c0" :: \
 		     "i"(__LINE__), "i" (__stringify(__FILE__)))
 void out_of_line_bug(void);
+#else
+static inline void out_of_line_bug(void) { }
 #endif
 
 #include <asm-generic/bug.h>
diff --git a/include/asm-x86_64/ia32.h b/include/asm-x86_64/ia32.h
index c0a7717923e..6efa00fe4e7 100644
--- a/include/asm-x86_64/ia32.h
+++ b/include/asm-x86_64/ia32.h
@@ -94,7 +94,7 @@ typedef struct compat_siginfo{
 
 		/* POSIX.1b timers */
 		struct {
-			int _tid;		/* timer id */
+			compat_timer_t _tid;	/* timer id */
 			int _overrun;		/* overrun count */
 			compat_sigval_t _sigval;	/* same as below */
 			int _sys_private;	/* not to be passed to user */
diff --git a/include/asm-x86_64/io.h b/include/asm-x86_64/io.h
index 94202703fae..37fc3f149a5 100644
--- a/include/asm-x86_64/io.h
+++ b/include/asm-x86_64/io.h
@@ -124,12 +124,7 @@ extern inline void * phys_to_virt(unsigned long address)
 /*
  * Change "struct page" to physical address.
  */
-#ifdef CONFIG_DISCONTIGMEM
-#include <asm/mmzone.h>
 #define page_to_phys(page)    ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
-#else
-#define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
-#endif
 
 #include <asm-generic/iomap.h>
 
diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h
index 3af50b3c3b0..eb3b7aa9eb9 100644
--- a/include/asm-x86_64/irq.h
+++ b/include/asm-x86_64/irq.h
@@ -52,4 +52,9 @@ struct irqaction;
 struct pt_regs;
 int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
 
+#ifdef CONFIG_HOTPLUG_CPU
+#include <linux/cpumask.h>
+extern void fixup_irqs(cpumask_t map);
+#endif
+
 #endif /* _ASM_IRQ_H */
diff --git a/include/asm-x86_64/kdebug.h b/include/asm-x86_64/kdebug.h
index 6277f75cbb4..b90341994d8 100644
--- a/include/asm-x86_64/kdebug.h
+++ b/include/asm-x86_64/kdebug.h
@@ -14,7 +14,7 @@ struct die_args {
 }; 
 
 /* Note - you should never unregister because that can race with NMIs.
-   If you really want to do it first unregister - then synchronize_kernel - then free. 
+   If you really want to do it first unregister - then synchronize_sched - then free.
   */
 int register_die_notifier(struct notifier_block *nb);
 extern struct notifier_block *die_chain;
diff --git a/include/asm-x86_64/kexec.h b/include/asm-x86_64/kexec.h
new file mode 100644
index 00000000000..42d2ff15c59
--- /dev/null
+++ b/include/asm-x86_64/kexec.h
@@ -0,0 +1,33 @@
+#ifndef _X86_64_KEXEC_H
+#define _X86_64_KEXEC_H
+
+#include <asm/page.h>
+#include <asm/proto.h>
+
+/*
+ * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
+ * I.e. Maximum page that is mapped directly into kernel memory,
+ * and kmap is not required.
+ *
+ * So far x86_64 is limited to 40 physical address bits.
+ */
+
+/* Maximum physical address we can use pages from */
+#define KEXEC_SOURCE_MEMORY_LIMIT      (0xFFFFFFFFFFUL)
+/* Maximum address we can reach in physical address mode */
+#define KEXEC_DESTINATION_MEMORY_LIMIT (0xFFFFFFFFFFUL)
+/* Maximum address we can use for the control pages */
+#define KEXEC_CONTROL_MEMORY_LIMIT     (0xFFFFFFFFFFUL)
+
+/* Allocate one page for the pdp and the second for the code */
+#define KEXEC_CONTROL_CODE_SIZE  (4096UL + 4096UL)
+
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_X86_64
+
+#define MAX_NOTE_BYTES 1024
+typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
+
+extern note_buf_t crash_notes[];
+
+#endif /* _X86_64_KEXEC_H */
diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h
index bfea52d516f..6d6d883fdf6 100644
--- a/include/asm-x86_64/kprobes.h
+++ b/include/asm-x86_64/kprobes.h
@@ -38,6 +38,9 @@ typedef u8 kprobe_opcode_t;
 	: (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
 
 #define JPROBE_ENTRY(pentry)	(kprobe_opcode_t *)pentry
+#define ARCH_SUPPORTS_KRETPROBES
+
+void kretprobe_trampoline(void);
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index d95b7c24083..768413751b3 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -6,7 +6,7 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 #define VIRTUAL_BUG_ON(x) 
 
@@ -30,27 +30,23 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 	return nid; 
 } 
 
-#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-#define kvaddr_to_nid(kaddr)	phys_to_nid(__pa(kaddr))
 #define NODE_DATA(nid)		(node_data[nid])
 
-#define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
-
-#define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_start_pfn + \
 				 NODE_DATA(nid)->node_spanned_pages)
 
-#define local_mapnr(kvaddr) \
-	( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#ifdef CONFIG_DISCONTIGMEM
+
+#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
+#define kvaddr_to_nid(kaddr)	phys_to_nid(__pa(kaddr))
 
 /* AK: this currently doesn't deal with invalid addresses. We'll see 
    if the 2.5 kernel doesn't pass them
    (2.4 used to). */
 #define pfn_to_page(pfn) ({ \
 	int nid = phys_to_nid(((unsigned long)(pfn)) << PAGE_SHIFT); 	\
-	((pfn) - node_start_pfn(nid)) + node_mem_map(nid);		\
+	((pfn) - node_start_pfn(nid)) + NODE_DATA(nid)->node_mem_map;	\
 })
 
 #define page_to_pfn(page) \
@@ -60,4 +56,8 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 			({ u8 nid__ = pfn_to_nid(pfn); \
 			   nid__ != 0xff && (pfn) >= node_start_pfn(nid__) && (pfn) <= node_end_pfn(nid__); }))
 #endif
+
+#define local_mapnr(kvaddr) \
+	( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#endif
 #endif
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 513e52c7182..bc700232728 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -57,11 +57,6 @@
      (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \
 } while(0)
 
-#define rdpmc(counter,low,high) \
-     __asm__ __volatile__("rdpmc" \
-			  : "=a" (low), "=d" (high) \
-			  : "c" (counter))
-
 #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
 
 #define rdpmc(counter,low,high) \
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index f43048035a0..431318764af 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -28,6 +28,7 @@
 #define HPAGE_SIZE	((1UL) << HPAGE_SHIFT)
 #define HPAGE_MASK	(~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
+#define ARCH_HAS_HUGETLB_CLEAN_STALE_PGTABLE
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
@@ -63,12 +64,14 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #define __pgd(x) ((pgd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
-#define __START_KERNEL		0xffffffff80100000UL
+#define __PHYSICAL_START	((unsigned long)CONFIG_PHYSICAL_START)
+#define __START_KERNEL		(__START_KERNEL_map + __PHYSICAL_START)
 #define __START_KERNEL_map	0xffffffff80000000UL
 #define __PAGE_OFFSET           0xffff810000000000UL
 
 #else
-#define __START_KERNEL		0xffffffff80100000
+#define __PHYSICAL_START	CONFIG_PHYSICAL_START
+#define __START_KERNEL		(__START_KERNEL_map + __PHYSICAL_START)
 #define __START_KERNEL_map	0xffffffff80000000
 #define __PAGE_OFFSET           0xffff810000000000
 #endif /* !__ASSEMBLY__ */
@@ -118,7 +121,9 @@ extern __inline__ int get_order(unsigned long size)
 	  __pa(v); })
 
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
-#ifndef CONFIG_DISCONTIGMEM
+#define __boot_va(x)		__va(x)
+#define __boot_pa(x)		__pa(x)
+#ifdef CONFIG_FLATMEM
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
diff --git a/include/asm-x86_64/param.h b/include/asm-x86_64/param.h
index b707f0568c9..40b11937180 100644
--- a/include/asm-x86_64/param.h
+++ b/include/asm-x86_64/param.h
@@ -1,9 +1,11 @@
+#include <linux/config.h>
+
 #ifndef _ASMx86_64_PARAM_H
 #define _ASMx86_64_PARAM_H
 
 #ifdef __KERNEL__
-# define HZ            1000            /* Internal kernel timer frequency */
-# define USER_HZ       100          /* .. some user interfaces are in "ticks */
+# define HZ            CONFIG_HZ	/* Internal kernel timer frequency */
+# define USER_HZ       100		/* .. some user interfaces are in "ticks */
 #define CLOCKS_PER_SEC        (USER_HZ)       /* like times() */
 #endif
 
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h
index 415d73f3c8e..9c71855736f 100644
--- a/include/asm-x86_64/percpu.h
+++ b/include/asm-x86_64/percpu.h
@@ -39,7 +39,7 @@ extern void setup_per_cpu_areas(void);
 #define DEFINE_PER_CPU(type, name) \
     __typeof__(type) per_cpu__##name
 
-#define per_cpu(var, cpu)			(*((void)cpu, &per_cpu__##var))
+#define per_cpu(var, cpu)			(*((void)(cpu), &per_cpu__##var))
 #define __get_cpu_var(var)			per_cpu__##var
 
 #endif	/* SMP */
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index db2a0efbf57..4eec176c3c3 100644
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -253,6 +253,7 @@ extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED;
 extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
 static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 
+#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT)
 extern inline pte_t pte_rdprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; }
 extern inline pte_t pte_exprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; }
 extern inline pte_t pte_mkclean(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; }
@@ -263,6 +264,7 @@ extern inline pte_t pte_mkexec(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _
 extern inline pte_t pte_mkdirty(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; }
 extern inline pte_t pte_mkyoung(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); return pte; }
+extern inline pte_t pte_mkhuge(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | __LARGE_PTE)); return pte; }
 
 struct vm_area_struct;
 
@@ -290,7 +292,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
  */
 #define pgprot_noncached(prot)	(__pgprot(pgprot_val(prot) | _PAGE_PCD | _PAGE_PWT))
 
-#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT) 
 static inline int pmd_large(pmd_t pte) { 
 	return (pmd_val(pte) & __LARGE_PTE) == __LARGE_PTE; 
 } 	
diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index d641b19f6da..106f666517b 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -160,16 +160,17 @@ static inline void clear_in_cr4 (unsigned long mask)
 /*
  * User space process size. 47bits minus one guard page.
  */
-#define TASK_SIZE	(0x800000000000UL - 4096)
+#define TASK_SIZE64	(0x800000000000UL - 4096)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
 #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? 0xc0000000 : 0xFFFFe000)
-#define TASK_UNMAPPED_32 PAGE_ALIGN(IA32_PAGE_OFFSET/3)
-#define TASK_UNMAPPED_64 PAGE_ALIGN(TASK_SIZE/3) 
-#define TASK_UNMAPPED_BASE	\
-	(test_thread_flag(TIF_IA32) ? TASK_UNMAPPED_32 : TASK_UNMAPPED_64)  
+
+#define TASK_SIZE 		(test_thread_flag(TIF_IA32) ? IA32_PAGE_OFFSET : TASK_SIZE64)
+#define TASK_SIZE_OF(child) 	((test_tsk_thread_flag(child, TIF_IA32)) ? IA32_PAGE_OFFSET : TASK_SIZE64)
+
+#define TASK_UNMAPPED_BASE	PAGE_ALIGN(TASK_SIZE/3)
 
 /*
  * Size of io_bitmap.
@@ -279,6 +280,14 @@ struct thread_struct {
 	set_fs(USER_DS);							 \
 } while(0) 
 
+#define get_debugreg(var, register)				\
+		__asm__("movq %%db" #register ", %0"		\
+			:"=r" (var))
+#define set_debugreg(value, register)			\
+		__asm__("movq %0,%%db" #register		\
+			: /* no output */			\
+			:"r" (value))
+
 struct task_struct;
 struct mm_struct;
 
diff --git a/include/asm-x86_64/ptrace.h b/include/asm-x86_64/ptrace.h
index 5bbc8d3141c..ca6f15ff61d 100644
--- a/include/asm-x86_64/ptrace.h
+++ b/include/asm-x86_64/ptrace.h
@@ -82,6 +82,7 @@ struct pt_regs {
 
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__) 
 #define user_mode(regs) (!!((regs)->cs & 3))
+#define user_mode_vm(regs) user_mode(regs)
 #define instruction_pointer(regs) ((regs)->rip)
 extern unsigned long profile_pc(struct pt_regs *regs);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h
index 96844fecbde..aeb1b73e21e 100644
--- a/include/asm-x86_64/smp.h
+++ b/include/asm-x86_64/smp.h
@@ -43,6 +43,8 @@ extern cpumask_t cpu_callout_map;
 extern void smp_alloc_memory(void);
 extern volatile unsigned long smp_invalidate_needed;
 extern int pic_mode;
+extern void lock_ipi_call_lock(void);
+extern void unlock_ipi_call_lock(void);
 extern int smp_num_siblings;
 extern void smp_flush_tlb(void);
 extern void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs);
@@ -68,7 +70,7 @@ static inline int num_booting_cpus(void)
 	return cpus_weight(cpu_callout_map);
 }
 
-#define __smp_processor_id() read_pda(cpunumber)
+#define raw_smp_processor_id() read_pda(cpunumber)
 
 extern __inline int hard_smp_processor_id(void)
 {
@@ -77,6 +79,8 @@ extern __inline int hard_smp_processor_id(void)
 }
 
 extern int safe_smp_processor_id(void);
+extern int __cpu_disable(void);
+extern void __cpu_die(unsigned int cpu);
 
 #endif /* !ASSEMBLY */
 
diff --git a/include/asm-x86_64/sparsemem.h b/include/asm-x86_64/sparsemem.h
new file mode 100644
index 00000000000..dabb16714a7
--- /dev/null
+++ b/include/asm-x86_64/sparsemem.h
@@ -0,0 +1,26 @@
+#ifndef _ASM_X86_64_SPARSEMEM_H
+#define _ASM_X86_64_SPARSEMEM_H 1
+
+#ifdef CONFIG_SPARSEMEM
+
+/*
+ * generic non-linear memory support:
+ *
+ * 1) we will not split memory into more chunks than will fit into the flags
+ *    field of the struct page
+ *
+ * SECTION_SIZE_BITS		2^n: size of each section
+ * MAX_PHYSADDR_BITS		2^n: max size of physical address space
+ * MAX_PHYSMEM_BITS		2^n: how much memory we can have in that space
+ *
+ */
+
+#define SECTION_SIZE_BITS	27 /* matt - 128 is convenient right now */
+#define MAX_PHYSADDR_BITS	40
+#define MAX_PHYSMEM_BITS	40
+
+extern int early_pfn_to_nid(unsigned long pfn);
+
+#endif /* CONFIG_SPARSEMEM */
+
+#endif /* _ASM_X86_64_SPARSEMEM_H */
diff --git a/include/asm-x86_64/suspend.h b/include/asm-x86_64/suspend.h
index ec745807fea..bb9f40597d0 100644
--- a/include/asm-x86_64/suspend.h
+++ b/include/asm-x86_64/suspend.h
@@ -16,7 +16,7 @@ arch_prepare_suspend(void)
 struct saved_context {
   	u16 ds, es, fs, gs, ss;
 	unsigned long gs_base, gs_kernel_base, fs_base;
-	unsigned long cr0, cr2, cr3, cr4;
+	unsigned long cr0, cr2, cr3, cr4, cr8;
 	u16 gdt_pad;
 	u16 gdt_limit;
 	unsigned long gdt_base;
diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h
index f4b3b249639..08eb6e4f373 100644
--- a/include/asm-x86_64/thread_info.h
+++ b/include/asm-x86_64/thread_info.h
@@ -29,7 +29,7 @@ struct thread_info {
 	__u32			flags;		/* low level flags */
 	__u32			status;		/* thread synchronous flags */
 	__u32			cpu;		/* current CPU */
-	int 			preempt_count;
+	int 			preempt_count;	/* 0 => preemptable, <0 => BUG */
 
 	mm_segment_t		addr_limit;	
 	struct restart_block    restart_block;
diff --git a/include/asm-x86_64/timex.h b/include/asm-x86_64/timex.h
index 34f31a18f90..24ecf6a637c 100644
--- a/include/asm-x86_64/timex.h
+++ b/include/asm-x86_64/timex.h
@@ -26,6 +26,9 @@ static inline cycles_t get_cycles (void)
 
 extern unsigned int cpu_khz;
 
+extern int read_current_timer(unsigned long *timer_value);
+#define ARCH_HAS_READ_CURRENT_TIMER	1
+
 extern struct vxtime_data vxtime;
 
 #endif
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index 67f24e0ea81..c1bc3fad482 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -3,7 +3,7 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 #include <asm/mpspec.h>
 #include <asm/bitops.h>
@@ -13,8 +13,8 @@
 extern cpumask_t cpu_online_map;
 
 extern unsigned char cpu_to_node[];
+extern unsigned char pci_bus_to_node[];
 extern cpumask_t     node_to_cpumask[];
-extern cpumask_t pci_bus_to_cpumask[];
 
 #ifdef CONFIG_ACPI_NUMA
 extern int __node_distance(int, int);
@@ -26,18 +26,9 @@ extern int __node_distance(int, int);
 #define parent_node(node)		(node)
 #define node_to_first_cpu(node) 	(__ffs(node_to_cpumask[node]))
 #define node_to_cpumask(node)		(node_to_cpumask[node])
+#define pcibus_to_node(bus)		pci_bus_to_node[(bus)->number]
+#define pcibus_to_cpumask(bus)		node_to_cpumask(pcibus_to_node(bus));
 
-static inline cpumask_t __pcibus_to_cpumask(int bus)
-{
-	cpumask_t busmask = pci_bus_to_cpumask[bus];
-	cpumask_t online = cpu_online_map;
-	cpumask_t res;
-	cpus_and(res, busmask, online);
-	return res;
-}
-#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus->number)
-
-#ifdef CONFIG_NUMA
 /* sched_domains SD_NODE_INIT for x86_64 machines */
 #define SD_NODE_INIT (struct sched_domain) {		\
 	.span			= CPU_MASK_NONE,	\
@@ -48,18 +39,21 @@ static inline cpumask_t __pcibus_to_cpumask(int bus)
 	.busy_factor		= 32,			\
 	.imbalance_pct		= 125,			\
 	.cache_hot_time		= (10*1000000),		\
-	.cache_nice_tries	= 1,			\
+	.cache_nice_tries	= 2,			\
+	.busy_idx		= 3,			\
+	.idle_idx		= 2,			\
+	.newidle_idx		= 0, 			\
+	.wake_idx		= 1,			\
+	.forkexec_idx		= 1,			\
 	.per_cpu_gain		= 100,			\
 	.flags			= SD_LOAD_BALANCE	\
-				| SD_BALANCE_NEWIDLE	\
+				| SD_BALANCE_FORK	\
 				| SD_BALANCE_EXEC	\
-				| SD_WAKE_IDLE		\
 				| SD_WAKE_BALANCE,	\
 	.last_balance		= jiffies,		\
 	.balance_interval	= 1,			\
 	.nr_balance_failed	= 0,			\
 }
-#endif
 
 #endif
 
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 3c9af6fd433..d767adcbf0f 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -552,7 +552,7 @@ __SYSCALL(__NR_mq_notify, sys_mq_notify)
 #define __NR_mq_getsetattr 	245
 __SYSCALL(__NR_mq_getsetattr, sys_mq_getsetattr)
 #define __NR_kexec_load 	246
-__SYSCALL(__NR_kexec_load, sys_ni_syscall)
+__SYSCALL(__NR_kexec_load, sys_kexec_load)
 #define __NR_waitid		247
 __SYSCALL(__NR_waitid, sys_waitid)
 #define __NR_add_key		248