[PATCH v2 1/4] rhashtable-test: add cond_resched() to thread test

Phil Sutter
2015-11-20T17:17:24Z

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

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
lib/test_rhashtable.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index 8c1ad1c..63654e3 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) {
--
2.1.2