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authorHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 22:07:07 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2015-06-19 22:07:07 +0800
commitc0b59fafe31bf91f589736be304d739b13952fdd (patch)
tree0088a41c6b68132739294643be06734e3af67677 /net/ipv4/tcp_input.c
parent28bceeaaf81140d69647acd0eb7dc9312f27844a (diff)
parentbfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 (diff)
Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Merge the mvebu/drivers branch of the arm-soc tree which contains just a single patch bfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 ("bus: mvebu-mbus: add mv_mbus_dram_info_nooverlap()") that happens to be a prerequisite of the new marvell/cesa crypto driver.
Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index a7ef679dd3ea..3a4d9b34bed4 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4845,6 +4845,8 @@ static void tcp_check_space(struct sock *sk)
{
if (sock_flag(sk, SOCK_QUEUE_SHRUNK)) {
sock_reset_flag(sk, SOCK_QUEUE_SHRUNK);
+ /* pairs with tcp_poll() */
+ smp_mb__after_atomic();
if (sk->sk_socket &&
test_bit(SOCK_NOSPACE, &sk->sk_socket->flags))
tcp_new_space(sk);