Commit 6047550d authored Apr 03, 2009 by Markus Metzger Committed by Ingo Molnar Apr 07, 2009

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>

parent 0f481406

arch/x86/kernel/ds.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -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();
		}