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authorEric Dumazet <edumazet@google.com>2019-11-05 14:11:52 -0800
committerDavid S. Miller <davem@davemloft.net>2019-11-06 16:14:48 -0800
commit7976a11b30929871a4c84c3c406d7681a3dbcc10 (patch)
treebdbef4ca196215ba83037b47bbcc5820e614e3e9 /net/ax25
parentnet: avoid potential false sharing in neighbor related code (diff)
downloadlinux-dev-7976a11b30929871a4c84c3c406d7681a3dbcc10.tar.xz
linux-dev-7976a11b30929871a4c84c3c406d7681a3dbcc10.zip
net: use helpers to change sk_ack_backlog
Writers are holding a lock, but many readers do not. Following patch will add appropriate barriers in sk_acceptq_removed() and sk_acceptq_added(). Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ax25')
-rw-r--r--net/ax25/af_ax25.c2
-rw-r--r--net/ax25/ax25_in.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index bb222b882b67..324306d6fde0 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1384,7 +1384,7 @@ static int ax25_accept(struct socket *sock, struct socket *newsock, int flags,
/* Now attach up the new socket */
kfree_skb(skb);
- sk->sk_ack_backlog--;
+ sk_acceptq_removed(sk);
newsock->state = SS_CONNECTED;
out:
diff --git a/net/ax25/ax25_in.c b/net/ax25/ax25_in.c
index dcdbaeeb2358..cd6afe895db9 100644
--- a/net/ax25/ax25_in.c
+++ b/net/ax25/ax25_in.c
@@ -356,7 +356,7 @@ static int ax25_rcv(struct sk_buff *skb, struct net_device *dev,
make->sk_state = TCP_ESTABLISHED;
- sk->sk_ack_backlog++;
+ sk_acceptq_added(sk);
bh_unlock_sock(sk);
} else {
if (!mine)