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authorDavid S. Miller <davem@davemloft.net>2019-03-02 12:54:35 -0800
committerDavid S. Miller <davem@davemloft.net>2019-03-02 12:54:35 -0800
commit9eb359140cd307f8a14f61c19b155ffca5291057 (patch)
tree22d5143608ef1744ca4b7025414777defe8bcca5 /net/tipc
parentMerge tag 'wireless-drivers-next-for-davem-2019-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next (diff)
parentnet: sit: fix memory leak in sit_init_net() (diff)
downloadlinux-dev-9eb359140cd307f8a14f61c19b155ffca5291057.tar.xz
linux-dev-9eb359140cd307f8a14f61c19b155ffca5291057.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/socket.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 8c81db337431..e482b342bfa8 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -379,11 +379,13 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout)
#define tipc_wait_for_cond(sock_, timeo_, condition_) \
({ \
+ DEFINE_WAIT_FUNC(wait_, woken_wake_function); \
struct sock *sk_; \
int rc_; \
\
while ((rc_ = !(condition_))) { \
- DEFINE_WAIT_FUNC(wait_, woken_wake_function); \
+ /* coupled with smp_wmb() in tipc_sk_proto_rcv() */ \
+ smp_rmb(); \
sk_ = (sock_)->sk; \
rc_ = tipc_sk_sock_err((sock_), timeo_); \
if (rc_) \
@@ -1983,6 +1985,8 @@ static void tipc_sk_proto_rcv(struct sock *sk,
return;
case SOCK_WAKEUP:
tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0);
+ /* coupled with smp_rmb() in tipc_wait_for_cond() */
+ smp_wmb();
tsk->cong_link_cnt--;
wakeup = true;
break;