tcp/dccp: add a reschedule point in inet_csk_listen_stop()

If a listener with thousands of children in accept queue
is dismantled, it can take a while to close all of them.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 5f6e31a4aeae..89eedfbd4ad5 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -809,6 +809,7 @@ void inet_csk_listen_stop(struct sock *sk)
                 sock_put(child);
 
                 reqsk_put(req);
+                cond_resched();
         }
         if (queue->fastopenq.rskq_rst_head) {
                 /* Free all the reqs queued in rskq_rst_head. */