Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / Documentation / RCU / trace.txt

diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt
index c078ad4..8173cec 100644 (file)
--- a/Documentation/RCU/trace.txt
+++ b/Documentation/RCU/trace.txt
@@ -99,18 +99,11 @@ o   "qp" indicates that RCU still expects a quiescent state from
 
 o      "dt" is the current value of the dyntick counter that is incremented
        when entering or leaving dynticks idle state, either by the
-       scheduler or by irq.  The number after the "/" is the interrupt
-       nesting depth when in dyntick-idle state, or one greater than
-       the interrupt-nesting depth otherwise.
-
-       This field is displayed only for CONFIG_NO_HZ kernels.
-
-o      "dn" is the current value of the dyntick counter that is incremented
-       when entering or leaving dynticks idle state via NMI.  If both
-       the "dt" and "dn" values are even, then this CPU is in dynticks
-       idle mode and may be ignored by RCU.  If either of these two
-       counters is odd, then RCU must be alert to the possibility of
-       an RCU read-side critical section running on this CPU.
+       scheduler or by irq.  This number is even if the CPU is in
+       dyntick idle mode and odd otherwise.  The number after the first
+       "/" is the interrupt nesting depth when in dyntick-idle state,
+       or one greater than the interrupt-nesting depth otherwise.
+       The number after the second "/" is the NMI nesting depth.
 
        This field is displayed only for CONFIG_NO_HZ kernels.