[patch 19/21] x86, ds: don't use TIF_DEBUGCTLMSR

[patch 19/21] x86, ds: don't use TIF_DEBUGCTLMSR

[Markus Metzger]

Debug store already uses TIF_DS_AREA_MSR to trigger debug store context
switch handling. No need to use TIF_DEBUGCTLMSR, as well.


Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
---

Index: git-tip/arch/x86/kernel/ds.c
===================================================================
--- git-tip.orig/arch/x86/kernel/ds.c	2009-03-30 19:14:51.000000000 +0200
+++ git-tip/arch/x86/kernel/ds.c	2009-03-30 19:26:02.000000000 +0200
@@ -956,11 +956,6 @@ static void update_task_debugctlmsr(stru
 	get_cpu();
 	if (task == current)
 		update_debugctlmsr(debugctlmsr);
-
-	if (task->thread.debugctlmsr)
-		set_tsk_thread_flag(task, TIF_DEBUGCTLMSR);
-	else
-		clear_tsk_thread_flag(task, TIF_DEBUGCTLMSR);
 	put_cpu();
 }
 
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