From 52864b14d1e9d31f3f1c688d64f65a259909ffa4 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 22 Nov 2011 12:13:03 -0800 Subject: [PATCH] --- yaml --- r: 277232 b: refs/heads/master c: 045fb9315a2129023d70a0eecf0942e18fca4fcd h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/include/trace/events/rcu.h | 12 ++++++++++-- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/[refs] b/[refs] index 5c5c6897d429..421a5c7cb303 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 182dd4b277177e8465ad11cd9f85f282946b5578 +refs/heads/master: 045fb9315a2129023d70a0eecf0942e18fca4fcd diff --git a/trunk/include/trace/events/rcu.h b/trunk/include/trace/events/rcu.h index c29fb2f55909..7f6877a35051 100644 --- a/trunk/include/trace/events/rcu.h +++ b/trunk/include/trace/events/rcu.h @@ -241,8 +241,16 @@ TRACE_EVENT(rcu_fqs, /* * Tracepoint for dyntick-idle entry/exit events. These take a string - * as argument: "Start" for entering dyntick-idle mode and "End" for - * leaving it. + * as argument: "Start" for entering dyntick-idle mode, "End" for + * leaving it, "--=" for events moving towards idle, and "++=" for events + * moving away from idle. "Error on entry: not idle task" and "Error on + * exit: not idle task" indicate that a non-idle task is erroneously + * toying with the idle loop. + * + * These events also take a pair of numbers, which indicate the nesting + * depth before and after the event of interest. Note that task-related + * events use the upper bits of each number, while interrupt-related + * events use the lower bits. */ TRACE_EVENT(rcu_dyntick,