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-rw-r--r--Documentation/RCU/trace.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt
index 8173cec..a67af0a 100644
--- a/Documentation/RCU/trace.txt
+++ b/Documentation/RCU/trace.txt
@@ -184,10 +184,14 @@ o "kt" is the per-CPU kernel-thread state. The digit preceding
The number after the final slash is the CPU that the kthread
is actually running on.
+ This field is displayed only for CONFIG_RCU_BOOST kernels.
+
o "ktl" is the low-order 16 bits (in hexadecimal) of the count of
the number of times that this CPU's per-CPU kthread has gone
through its loop servicing invoke_rcu_cpu_kthread() requests.
+ This field is displayed only for CONFIG_RCU_BOOST kernels.
+
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.
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