ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED

[~andy/linux] / Documentation / trace / ftrace.txt

diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index ea2d35d64d26f50226ddceeec795effaf6bbf6c9..bd365988e8d8d8b94d10188cd26f0b70e42061c9 100644 (file)
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -655,7 +655,11 @@ explains which is which.
                  read the irq flags variable, an 'X' will always
                  be printed here.
 
-  need-resched: 'N' task need_resched is set, '.' otherwise.
+  need-resched:
+       'N' both TIF_NEED_RESCHED and PREEMPT_NEED_RESCHED is set,
+       'n' only TIF_NEED_RESCHED is set,
+       'p' only PREEMPT_NEED_RESCHED is set,
+       '.' otherwise.
 
   hardirq/softirq:
        'H' - hard irq occurred inside a softirq.