From: Phil Sutter <phil@nwl.cc>
Date: Fri, 20 Nov 2015 17:17:17 +0000 (+0100)
Subject: rhashtable-test: add cond_resched() to thread test
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=cd5b318daf4aecd249c3f07df93700c0f749484c;p=openwrt%2Fstaging%2Fblogic.git

rhashtable-test: add cond_resched() to thread test

This should fix for soft lockup bugs triggered on slow systems.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index 8c1ad1ced72c..63654e359256 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -236,6 +236,8 @@ static int thread_lookup_test(struct thread_data *tdata)
 			       obj->value, key);
 			err++;
 		}
+
+		cond_resched();
 	}
 	return err;
 }
@@ -251,6 +253,7 @@ static int threadfunc(void *data)
 
 	for (i = 0; i < entries; i++) {
 		tdata->objs[i].value = (tdata->id << 16) | i;
+		cond_resched();
 		err = rhashtable_insert_fast(&ht, &tdata->objs[i].node,
 		                             test_rht_params);
 		if (err == -ENOMEM || err == -EBUSY) {
@@ -285,6 +288,8 @@ static int threadfunc(void *data)
 				goto out;
 			}
 			tdata->objs[i].value = TEST_INSERT_FAIL;
+
+			cond_resched();
 		}
 		err = thread_lookup_test(tdata);
 		if (err) {