[tip:timers/core] timers, net/ipv4/inet: Initialize connection request timers as pinned

[tip-bot for Thomas Gleixner]

Commit-ID:  f3438bc7813c439a06104ba074301c8bdd64ac8b
Gitweb:     http://git.kernel.org/tip/f3438bc7813c439a06104ba074301c8bdd64ac8b
Author:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Mon, 4 Jul 2016 09:50:23 +0000
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Thu, 7 Jul 2016 10:35:06 +0200

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@xxxxxxxxxxxxx>
Reviewed-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxx>
Cc: Chris Mason <clm@xxxxxx>
Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
Cc: George Spelvin <linux@xxxxxxxxxxxxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: rt@xxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20160704094341.617891430@xxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 net/ipv4/inet_connection_sock.c | 7 ++++---
 net/ipv4/inet_timewait_sock.c   | 5 +++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index fa8c398..61a9dee 100644
--- 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
--- 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);