ia64: Sync with 2.5.64.

diff --cc arch/ia64/ia32/sys_ia32.c
Simple merge

diff --cc arch/ia64/kernel/irq.c
Simple merge

diff --cc arch/ia64/kernel/perfmon.c
Simple merge

diff --cc arch/ia64/kernel/signal.c
Simple merge

diff --cc arch/ia64/kernel/smp.c
Simple merge

diff --cc arch/ia64/kernel/time.c
index bf603c14232846c793a1c4bd485049d94ced07c8,6db7474cf811194c0c413e527080600df5b5cfa7..4d76e2193854c30badb64c5a2056ab8032480b86
--- 1/arch/ia64/kernel/time.c
--- 2/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@@ -25,9 -25,9 +25,9 @@@
  #include <asm/system.h>
  
  extern unsigned long wall_jiffies;
- extern unsigned long last_time_offset;
+ extern unsigned long last_nsec_offset;
  
 -u64 jiffies_64;
 +u64 jiffies_64 = INITIAL_JIFFIES;
  
  #ifdef CONFIG_IA64_DEBUG_IRQ
  

diff --cc arch/ia64/mm/hugetlbpage.c
Simple merge

diff --cc arch/ia64/sn/kernel/setup.c
Simple merge

diff --cc include/asm-ia64/mmzone.h
Simple merge