diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2021-12-23 16:09:58 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-23 16:09:58 -0800 |
| commit | 8b3f91332291fa280a56215f5189baca185998f5 (patch) | |
| tree | b89f58972c80ffacf57c4c9cedb5b4b03473c5be /net/ipv4/udp.c | |
| parent | f2b551fad8d8f2ac5e1f810ad595298381e0b0c5 (diff) | |
| parent | 391e5975c0208ce3739587b33eba08be3e473d79 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/net/sock.h
commit 8f905c0e7354 ("inet: fully convert sk->sk_rx_dst to RCU rules")
commit 43f51df41729 ("net: move early demux fields close to sk_refcnt")
https://lore.kernel.org/all/20211222141641.0caa0ab3@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 69d30053fed9..f376c777e8fc 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2250,7 +2250,7 @@ bool udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst) struct dst_entry *old; if (dst_hold_safe(dst)) { - old = xchg(&sk->sk_rx_dst, dst); + old = xchg((__force struct dst_entry **)&sk->sk_rx_dst, dst); dst_release(old); return old != dst; } @@ -2440,7 +2440,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, struct dst_entry *dst = skb_dst(skb); int ret; - if (unlikely(sk->sk_rx_dst != dst)) + if (unlikely(rcu_dereference(sk->sk_rx_dst) != dst)) udp_sk_rx_dst_set(sk, dst); ret = udp_unicast_rcv_skb(sk, skb, uh); @@ -2599,7 +2599,7 @@ int udp_v4_early_demux(struct sk_buff *skb) skb->sk = sk; skb->destructor = sock_efree; - dst = READ_ONCE(sk->sk_rx_dst); + dst = rcu_dereference(sk->sk_rx_dst); if (dst) dst = dst_check(dst, 0); |