[patch 08/20] net/ipv4/inet: Initialize timers as pinned

From: Thomas Gleixner
Date: Mon Jun 13 2016 - 04:50:38 EST


Pinned timers must carry that attribute in the timer itself. No functional
change.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
net/ipv4/inet_connection_sock.c | 7 ++++---
net/ipv4/inet_timewait_sock.c | 5 +++--
2 files changed, 7 insertions(+), 5 deletions(-)

Index: b/net/ipv4/inet_connection_sock.c
===================================================================
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -603,7 +603,7 @@ static void reqsk_timer_handler(unsigned
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
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
Index: b/net/ipv4/inet_timewait_sock.c
===================================================================
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -188,7 +188,8 @@ struct inet_timewait_sock *inet_twsk_all
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_ti

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);