Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev...

[thirdparty/kernel/linux.git] / net / mptcp / sched.c

diff --git a/net/mptcp/sched.c b/net/mptcp/sched.c
index 4ab0693c069c0fb0725372f17df62d87e859820c..4a7fd0508ad28497463f1e40ec2b95c555249969 100644 (file)
--- a/net/mptcp/sched.c
+++ b/net/mptcp/sched.c
@@ -51,6 +51,28 @@ struct mptcp_sched_ops *mptcp_sched_find(const char *name)
        return ret;
 }
 
+/* Build string with list of available scheduler values.
+ * Similar to tcp_get_available_congestion_control()
+ */
+void mptcp_get_available_schedulers(char *buf, size_t maxlen)
+{
+       struct mptcp_sched_ops *sched;
+       size_t offs = 0;
+
+       rcu_read_lock();
+       spin_lock(&mptcp_sched_list_lock);
+       list_for_each_entry_rcu(sched, &mptcp_sched_list, list) {
+               offs += snprintf(buf + offs, maxlen - offs,
+                                "%s%s",
+                                offs == 0 ? "" : " ", sched->name);
+
+               if (WARN_ON_ONCE(offs >= maxlen))
+                       break;
+       }
+       spin_unlock(&mptcp_sched_list_lock);
+       rcu_read_unlock();
+}
+
 int mptcp_register_scheduler(struct mptcp_sched_ops *sched)
 {
        if (!sched->get_subflow)