x86: Convert set_atomicity_lock to raw_spinlock

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/kernel/cpu/mtrr/generic.c

@@ -570,7 +570,7 @@ static unsigned long set_mtrr_state(void)
 
 
 static unsigned long cr4;
-static DEFINE_SPINLOCK(set_atomicity_lock);
+static DEFINE_RAW_SPINLOCK(set_atomicity_lock);
 
 /*
  * Since we are disabling the cache don't allow any interrupts,
@@ -590,7 +590,7 @@ static void prepare_set(void) __acquires(set_atomicity_lock)
 	 * changes to the way the kernel boots
 	 */
 
-	spin_lock(&set_atomicity_lock);
+	raw_spin_lock(&set_atomicity_lock);
 
 	/* Enter the no-fill (CD=1, NW=0) cache mode and flush caches. */
 	cr0 = read_cr0() | X86_CR0_CD;
@@ -627,7 +627,7 @@ static void post_set(void) __releases(set_atomicity_lock)
 	/* Restore value of CR4 */
 	if (cpu_has_pge)
 		write_cr4(cr4);
-	spin_unlock(&set_atomicity_lock);
+	raw_spin_unlock(&set_atomicity_lock);
 }
 
 static void generic_set_all(void)