rhashtable: silence RCU warning in rhashtable_test.
print_ht in rhashtable_test calls rht_dereference() with neither
RCU protection or the mutex. This triggers an RCU warning.
So take the mutex to silence the warning.
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index fb69681..6ca59ff 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -501,6 +501,8 @@
unsigned int i, cnt = 0;
ht = &rhlt->ht;
+ /* Take the mutex to avoid RCU warning */
+ mutex_lock(&ht->mutex);
tbl = rht_dereference(ht->tbl, ht);
for (i = 0; i < tbl->size; i++) {
struct rhash_head *pos, *next;
@@ -534,6 +536,7 @@
}
}
printk(KERN_ERR "\n---- ht: ----%s\n-------------\n", buff);
+ mutex_unlock(&ht->mutex);
return cnt;
}