[PATCH] rcuperf: correct a example of perf_type

[Xiao Yang <ice_yangxiao@xxxxxxx>]

rcu_bh type has been removed by commit 620d246065cd("rcuperf:
Remove the "rcu_bh" and "sched" torture types") and only four
types(i.e rcu, srcu, srcud, tasks) are supported currently, so
use srcu as a example.

Signed-off-by: Xiao Yang <ice_yangxiao@xxxxxxx>
---
 kernel/rcu/rcuperf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c
index 7a6890b..4513807 100644
--- a/kernel/rcu/rcuperf.c
+++ b/kernel/rcu/rcuperf.c
@@ -89,7 +89,7 @@
 
 static char *perf_type = "rcu";
 module_param(perf_type, charp, 0444);
-MODULE_PARM_DESC(perf_type, "Type of RCU to performance-test (rcu, rcu_bh, ...)");
+MODULE_PARM_DESC(perf_type, "Type of RCU to performance-test (rcu, srcu, ...)");
 
 static int nrealreaders;
 static int nrealwriters;
-- 
1.8.3.1