[patch 16/18] x86, ds: dont use TIF_DEBUGCTLMSR

From: markus . t . metzger
Date: Thu Apr 02 2009 - 11:03:26 EST


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@xxxxxxxxx>
---
arch/x86/kernel/ds.c | 5 0 + 5 - 0 !
1 file changed, 5 deletions(-)

Index: b/arch/x86/kernel/ds.c
===================================================================
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -953,11 +953,6 @@ 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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