From: Paul E. McKenney Date: Thu, 16 Jun 2011 06:07:55 +0000 (-0700) Subject: rcu: Update documentation to flag RCU_BOOST trace information X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d5988af53102f3b73e5e0788be024ccfa51869de;p=linux-beck.git rcu: Update documentation to flag RCU_BOOST trace information Call out the RCU_TRACE information that is provided only in kernels built with RCU_BOOST. Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney --- diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt index 8173cec473aa..a67af0a39ded 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.