Merge branch 'stable/swiotlb-0.9' of git://git.kernel.org/pub/scm/linux/kernel/git...

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

diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt
index efd8cc9..a851118 100644 (file)
--- a/Documentation/RCU/trace.txt
+++ b/Documentation/RCU/trace.txt
@@ -125,6 +125,17 @@ o  "b" is the batch limit for this CPU.  If more than this number
        of RCU callbacks is ready to invoke, then the remainder will
        be deferred.
 
        of RCU callbacks is ready to invoke, then the remainder will
        be deferred.
 

+o      "ci" is the number of RCU callbacks that have been invoked for
+       this CPU.  Note that ci+ql is the number of callbacks that have
+       been registered in absence of CPU-hotplug activity.
+
+o      "co" is the number of RCU callbacks that have been orphaned due to
+       this CPU going offline.
+
+o      "ca" is the number of RCU callbacks that have been adopted due to
+       other CPUs going offline.  Note that ci+co-ca+ql is the number of
+       RCU callbacks registered on this CPU.
+

 There is also an rcu/rcudata.csv file with the same information in
 comma-separated-variable spreadsheet format.
 
 There is also an rcu/rcudata.csv file with the same information in
 comma-separated-variable spreadsheet format.
 


@@ -180,7 +191,7 @@ o   "s" is the "signaled" state that drives force_quiescent_state()'s
 
 o      "jfq" is the number of jiffies remaining for this grace period
        before force_quiescent_state() is invoked to help push things
 
 o      "jfq" is the number of jiffies remaining for this grace period
        before force_quiescent_state() is invoked to help push things

-       along.  Note that CPUs in dyntick-idle mode thoughout the grace
+       along.  Note that CPUs in dyntick-idle mode throughout the grace

        period will not report on their own, but rather must be check by
        some other CPU via force_quiescent_state().
 
        period will not report on their own, but rather must be check by
        some other CPU via force_quiescent_state().