[PATCH] rcutorture: catchup doc fixes for idle-hz tests

This just catches the RCU torture documentation up with the recent fixes
that test RCU for architectures that turn of the scheduling-clock interrupt
for idle CPUs and the addition of a SUCCESS/FAILURE indication, fixing up
an obsolete comment as well.

Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index e4c38152f7f799b94a70493f90dbf36b830e9cde..d896685a9100523e17f3299ff546ff9a1bedacb8 100644 (file)
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -35,6 +35,15 @@ stat_interval        The number of seconds between output of torture
                be printed -only- when the module is unloaded, and this
                is the default.
 
+shuffle_interval
+               The number of seconds to keep the test threads affinitied
+               to a particular subset of the CPUs.  Used in conjunction
+               with test_no_idle_hz.
+
+test_no_idle_hz        Whether or not to test the ability of RCU to operate in
+               a kernel that disables the scheduling-clock interrupt to
+               idle CPUs.  Boolean parameter, "1" to test, "0" otherwise.
+
 verbose                Enable debug printk()s.  Default is disabled.
 
 
@@ -119,4 +128,5 @@ The following script may be used to torture RCU:
 
 The output can be manually inspected for the error flag of "!!!".
 One could of course create a more elaborate script that automatically
-checked for such errors.
+checked for such errors.  The "rmmod" command forces a "SUCCESS" or
+"FAILURE" indication to be printk()ed.

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 8154e7589d1284a7f96b1aa3b587ab2ffc01c299..2a65bd8a3d10933fb8516ec08b1f54655c7f635b 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -1,5 +1,5 @@
 /*
- * Read-Copy Update /proc-based torture test facility
+ * Read-Copy Update module-based torture test facility
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by