| From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 03/55] rcu: Update documentation to flag RCU_BOOST trace information | Date | Tue, 6 Sep 2011 10:59:57 -0700 |
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From: Paul E. McKenney <paul.mckenney@linaro.org>
Call out the RCU_TRACE information that is provided only in kernels built with RCU_BOOST.
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- Documentation/RCU/trace.txt | 4 ++++ 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. -- 1.7.3.2
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