sched: fine-tune SD_SIBLING_INIT

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

diff --git a/Documentation/ftrace.txt b/Documentation/ftrace.txt
index d330fe3103da9c9a3cb8f888ac7255ce48e666d4..ea5a827395dd31a6c34e91da54a6d81367be077a 100644 (file)
--- a/Documentation/ftrace.txt
+++ b/Documentation/ftrace.txt
@@ -291,6 +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.