From: Eric Dumazet <edumazet@google.com>
Date: Fri, 2 Oct 2015 18:43:38 +0000 (-0700)
Subject: tcp/dccp: add a reschedule point in inet_csk_listen_stop()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=92d6f176fdcce1a9c22a59d754c924168fdf2ce4;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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>
---

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. */