[IA64] Don't hardcode offsets in thread_info

We had hardcoded defines for TI_TASK TI_EXEC_DOMAIN, TI_FLAGS, TI_CPU,
TI_ADDR_LIMIT, TI_PRE_COUNT, TI_RESTART_BLOCK; but only two of these
were ever used.  Remove all from thread_info.h, and generate the two
that we do use (TI_FLAGS and TI_PRE_COUNT) in asm_offsets.c

Patch supplied by Zou Nan hai
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/asm-offsets.c

@@ -34,6 +34,11 @@ void foo(void)
 
 	BLANK();
 
+	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+	DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
+
+	BLANK();
+
 	DEFINE(IA64_TASK_BLOCKED_OFFSET,offsetof (struct task_struct, blocked));
 	DEFINE(IA64_TASK_CLEAR_CHILD_TID_OFFSET,offsetof (struct task_struct, clear_child_tid));
 	DEFINE(IA64_TASK_GROUP_LEADER_OFFSET, offsetof (struct task_struct, group_leader));

include/asm-ia64/thread_info.h

@@ -9,14 +9,6 @@
 #include <asm/processor.h>
 #include <asm/ptrace.h>
 
-#define TI_TASK			0x00
-#define TI_EXEC_DOMAIN		0x08
-#define TI_FLAGS		0x10
-#define TI_CPU			0x14
-#define TI_ADDR_LIMIT		0x18
-#define TI_PRE_COUNT		0x20
-#define TI_RESTART_BLOCK	0x28
-
 #define PREEMPT_ACTIVE_BIT 30
 #define PREEMPT_ACTIVE	(1 << PREEMPT_ACTIVE_BIT)