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| author | Eric Dumazet <edumazet@google.com> | 2016-05-04 15:27:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-04 23:47:54 -0400 |
| commit | 777c6ae57ebd432b59950b3e28bf01676018d1b2 (patch) | |
| tree | daa9fc5647e16767136233e80544b785727f1271 /net/ipv4/tcp_ipv4.c | |
| parent | aa8a8b05adfc72e562abe7ae5c6933906e0ed2e9 (diff) | |
| download | linux-777c6ae57ebd432b59950b3e28bf01676018d1b2.tar.gz linux-777c6ae57ebd432b59950b3e28bf01676018d1b2.tar.bz2 linux-777c6ae57ebd432b59950b3e28bf01676018d1b2.zip | |
tcp: two more missing bh disable
percpu_counter only have protection against preemption.
TCP stack uses them possibly from BH, so we need BH protection
in contexts that could be run in process context
Fixes: c10d9310edf5 ("tcp: do not assume TCP code is non preemptible")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 761bc492c5e3..a7ab9472d645 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1839,7 +1839,9 @@ void tcp_v4_destroy_sock(struct sock *sk) tcp_free_fastopen_req(tp); tcp_saved_syn_free(tp); + local_bh_disable(); sk_sockets_allocated_dec(sk); + local_bh_enable(); if (mem_cgroup_sockets_enabled && sk->sk_memcg) sock_release_memcg(sk); |