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Subject[PATCH] inet: further fixes of possible seqlock deadlocks
This fixes more incorrect uses of *_STATS_BH in process context.

Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
---
net/ipv4/udp.c | 8 ++++----
net/ipv6/ip6_output.c | 8 ++++----
net/ipv6/ping.c | 4 ++--
3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 44e3884..f5cc018 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1160,10 +1160,10 @@ static unsigned int first_packet_length(struct sock *sk)
spin_lock_bh(&rcvq->lock);
while ((skb = skb_peek(rcvq)) != NULL &&
udp_lib_checksum_complete(skb)) {
- UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS,
- IS_UDPLITE(sk));
- UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
- IS_UDPLITE(sk));
+ UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_CSUMERRORS,
+ IS_UDPLITE(sk));
+ UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS,
+ IS_UDPLITE(sk));
atomic_inc(&sk->sk_drops);
__skb_unlink(skb, rcvq);
__skb_queue_tail(&list_kill, skb);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 59df872..e05cf0a 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -116,8 +116,8 @@ static int ip6_finish_output2(struct sk_buff *skb)
}
rcu_read_unlock_bh();

- IP6_INC_STATS_BH(dev_net(dst->dev),
- ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
+ IP6_INC_STATS(dev_net(dst->dev),
+ ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
kfree_skb(skb);
return -EINVAL;
}
@@ -1524,8 +1524,8 @@ int ip6_push_pending_frames(struct sock *sk)
if (proto == IPPROTO_ICMPV6) {
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));

- ICMP6MSGOUT_INC_STATS_BH(net, idev, icmp6_hdr(skb)->icmp6_type);
- ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTMSGS);
+ ICMP6MSGOUT_INC_STATS(net, idev, icmp6_hdr(skb)->icmp6_type);
+ ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
}

err = ip6_local_out(skb);
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index a83243c..3a1f1f3 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -182,8 +182,8 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
MSG_DONTWAIT, np->dontfrag);

if (err) {
- ICMP6_INC_STATS_BH(sock_net(sk), rt->rt6i_idev,
- ICMP6_MIB_OUTERRORS);
+ ICMP6_INC_STATS(sock_net(sk), rt->rt6i_idev,
+ ICMP6_MIB_OUTERRORS);
ip6_flush_pending_frames(sk);
} else {
err = icmpv6_push_pending_frames(sk, &fl6,
--
1.8.3.1


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