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x86, ds: dont use TIF_DEBUGCTLMSR 

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>
Cc: roland@redhat.com
Cc: eranian@googlemail.com
Cc: oleg@redhat.com
Cc: juan.villacis@intel.com
Cc: ak@linux.jf.intel.com
LKML-Reference: <20090403144604.256645000@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Markus Metzger 2009-04-03 16:43:49 +02:00 committed by Ingo Molnar
parent 0f4814065f
commit 6047550d3d
1 changed files with 0 additions and 5 deletions
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5
arch/x86/kernel/ds.c
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@ -925,11 +925,6 @@ static void update_task_debugctlmsr(struct task_struct *task,
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();
}