[PATCH v2 1/4] rhashtable-test: add cond_resched() to thread test
From: Phil Sutter <phil@nwl.cc>
Date: 2015-11-20 17:17:24
Also in:
lkml
Subsystem:
library code, rhashtable, the rest · Maintainers:
Andrew Morton, Thomas Graf, Herbert Xu, Linus Torvalds
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