timers, net/ipv4/inet: Initialize connection request timers as pinned

Pinned timers must carry the pinned attribute in the timer structure
itself, so convert the code to the new API.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: George Spelvin <linux@sciencehorizons.net>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160704094341.617891430@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index fa8c398..61a9dee 100644 (file)
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -603,7 +603,7 @@ static void reqsk_timer_handler(unsigned long data)
                if (req->num_timeout++ == 0)
                        atomic_dec(&queue->young);
                timeo = min(TCP_TIMEOUT_INIT << req->num_timeout, TCP_RTO_MAX);
-               mod_timer_pinned(&req->rsk_timer, jiffies + timeo);
+               mod_timer(&req->rsk_timer, jiffies + timeo);
                return;
        }
 drop:
@@ -617,8 +617,9 @@ static void reqsk_queue_hash_req(struct request_sock *req,
        req->num_timeout = 0;
        req->sk = NULL;
 
-       setup_timer(&req->rsk_timer, reqsk_timer_handler, (unsigned long)req);
-       mod_timer_pinned(&req->rsk_timer, jiffies + timeout);
+       setup_pinned_timer(&req->rsk_timer, reqsk_timer_handler,
+                           (unsigned long)req);
+       mod_timer(&req->rsk_timer, jiffies + timeout);
 
        inet_ehash_insert(req_to_sk(req), NULL);
        /* before letting lookups find us, make sure all req fields

diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 2065816..ddcd56c 100644 (file)
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -188,7 +188,8 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
                tw->tw_prot         = sk->sk_prot_creator;
                atomic64_set(&tw->tw_cookie, atomic64_read(&sk->sk_cookie));
                twsk_net_set(tw, sock_net(sk));
-               setup_timer(&tw->tw_timer, tw_timer_handler, (unsigned long)tw);
+               setup_pinned_timer(&tw->tw_timer, tw_timer_handler,
+                                  (unsigned long)tw);
                /*
                 * Because we use RCU lookups, we should not set tw_refcnt
                 * to a non null value before everything is setup for this
@@ -248,7 +249,7 @@ void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo, bool rearm)
 
        tw->tw_kill = timeo <= 4*HZ;
        if (!rearm) {
-               BUG_ON(mod_timer_pinned(&tw->tw_timer, jiffies + timeo));
+               BUG_ON(mod_timer(&tw->tw_timer, jiffies + timeo));
                atomic_inc(&tw->tw_dr->tw_count);
        } else {
                mod_timer_pending(&tw->tw_timer, jiffies + timeo);