[IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMP

[linux-2.6-omap-h63xx.git] / Documentation / ftrace.txt

diff --git a/Documentation/ftrace.txt b/Documentation/ftrace.txt
index f218f616ff6bbf79e6b6aa6987f64a41142df5f0..ea5a827395dd31a6c34e91da54a6d81367be077a 100644 (file)
--- a/Documentation/ftrace.txt
+++ b/Documentation/ftrace.txt
@@ -4,6 +4,7 @@
 Copyright 2008 Red Hat Inc.
    Author:   Steven Rostedt <srostedt@redhat.com>
   License:   The GNU Free Documentation License, Version 1.2
+               (dual licensed under the GPL v2)
 Reviewers:   Elias Oltmanns, Randy Dunlap, Andrew Morton,
             John Kacur, and David Teigland.
 
@@ -290,6 +291,9 @@ explains which is which.
   CPU#: The CPU which the process was running on.
 
   irqs-off: 'd' interrupts are disabled. '.' otherwise.
+           Note: If the architecture does not support a way to
+                 read the irq flags variable, an 'X' will always
+                 be printed here.
 
   need-resched: 'N' task need_resched is set, '.' otherwise.