---

yaml --- r: 41612 b: refs/heads/master c: 35bfbc9 h: refs/heads/master v: v3
git-mirror · Dec 3, 2006 · 8a45a45 · 8a45a45
1 parent d3c6e5b
commit 8a45a45
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ce7bc3bf15cbf5dc5a5587ccb6b04c5b4dde4336
+refs/heads/master: 35bfbc94070e480f350c868abc4ff9f77e7f2051
diff --git a/trunk/net/ipv4/tcp_cong.c b/trunk/net/ipv4/tcp_cong.c
@@ -113,7 +113,7 @@ int tcp_set_default_congestion_control(const char *name)
 	spin_lock(&tcp_cong_list_lock);
 	ca = tcp_ca_find(name);
 #ifdef CONFIG_KMOD
-	if (!ca) {
+	if (!ca && capable(CAP_SYS_MODULE)) {
 		spin_unlock(&tcp_cong_list_lock);
 
 		request_module("tcp_%s", name);
@@ -236,9 +236,19 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
 
 	rcu_read_lock();
 	ca = tcp_ca_find(name);
+	/* no change asking for existing value */
 	if (ca == icsk->icsk_ca_ops)
 		goto out;
 
+#ifdef CONFIG_KMOD
+	/* not found attempt to autoload module */
+	if (!ca && capable(CAP_SYS_MODULE)) {
+		rcu_read_unlock();
+		request_module("tcp_%s", name);
+		rcu_read_lock();
+		ca = tcp_ca_find(name);
+	}
+#endif
 	if (!ca)
 		err = -ENOENT;