From 0b548e33e6cb2bff240fdaf1783783be15c29080 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Fri, 17 Nov 2017 15:28:27 -0800
Subject: [PATCH] lib/rbtree-test: lower default params
Git-commit: 0b548e33e6cb2bff240fdaf1783783be15c29080
Patch-mainline: v4.15-rc1
References: git-fixes

Fengguang reported soft lockups while running the rbtree and interval
tree test modules.  The logic for these tests all occur in init phase,
and we currently are pounding with the default values for number of
nodes and number of iterations of each test.  Reduce the latter by two
orders of magnitude.  This does not influence the value of the tests in
that one thousand times by default is enough to get the picture.

(Coly Li: this is partial backport, I don't have the change of module
 parm perf_loops in, because we don't have commit 223f8911eace6
 ("lib/rbtree_test.c: make input module parameters") yet)

Link: http://lkml.kernel.org/r/20171109161715.xai2dtwqw2frhkcm@linux-n805
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Coly Li <colyli@suse.de>
---
 lib/interval_tree_test.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/lib/interval_tree_test.c
+++ b/lib/interval_tree_test.c
@@ -11,10 +11,10 @@
 	MODULE_PARM_DESC(name, msg);
 
 __param(int, nnodes, 100, "Number of nodes in the interval tree");
-__param(int, perf_loops, 100000, "Number of iterations modifying the tree");
+__param(int, perf_loops, 1000, "Number of iterations modifying the tree");
 
 __param(int, nsearches, 100, "Number of searches to the interval tree");
-__param(int, search_loops, 10000, "Number of iterations searching the tree");
+__param(int, search_loops, 1000, "Number of iterations searching the tree");
 __param(bool, search_all, false, "Searches will iterate all nodes in the tree");
 
 __param(uint, max_endpoint, ~0, "Largest value for the interval's endpoint");