diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2017-04-03 05:20:25 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2017-04-04 03:44:35 +0200 |
| commit | f7d65b3268ec8f11d0fbf455ce8f7b00b0f79c47 (patch) | |
| tree | e7ddc04349076e5432dd196a4472e04b8bd4811b /src/receive.c | |
| parent | bf71248a46a64955c53b59fe6bcbc9c35094d1c6 (diff) | |
locking: always use _bh
All locks are potentially between user context and softirq,
which means we need to take the _bh variant.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'src/receive.c')
| -rw-r--r-- | src/receive.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/receive.c b/src/receive.c index f791a2e..3b375ae 100644 --- a/src/receive.c +++ b/src/receive.c @@ -192,12 +192,12 @@ static void keep_key_fresh(struct wireguard_peer *peer) if (peer->sent_lastminute_handshake) return; - rcu_read_lock(); - keypair = rcu_dereference(peer->keypairs.current_keypair); + rcu_read_lock_bh(); + keypair = rcu_dereference_bh(peer->keypairs.current_keypair); if (likely(keypair && keypair->sending.is_valid) && keypair->i_am_the_initiator && unlikely(time_is_before_eq_jiffies64(keypair->sending.birthdate + REJECT_AFTER_TIME - KEEPALIVE_TIMEOUT - REKEY_TIMEOUT))) send = true; - rcu_read_unlock(); + rcu_read_unlock_bh(); if (send) { peer->sent_lastminute_handshake = true; |