diff options
| author | Eric Dumazet <edumazet@google.com> | 2015-03-22 10:22:21 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-23 16:52:26 -0400 |
| commit | b282705336e03fc7b9377a278939594870a40f96 (patch) | |
| tree | fbb9b0bf127fb3910e65b6ff6566fc12396385e4 /net/ipv4/inet_diag.c | |
| parent | 8b929ab12fb2ab960adb3c3ec8d107fef5ff3243 (diff) | |
| download | blackbird-op-linux-b282705336e03fc7b9377a278939594870a40f96.tar.gz blackbird-op-linux-b282705336e03fc7b9377a278939594870a40f96.zip | |
net: convert syn_wait_lock to a spinlock
This is a low hanging fruit, as we'll get rid of syn_wait_lock eventually.
We hold syn_wait_lock for such small sections, that it makes no sense to use
a read/write lock. A spin lock is simply faster.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_diag.c')
| -rw-r--r-- | net/ipv4/inet_diag.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index f984b2001d0a..76322c9867d5 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -728,7 +728,7 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk, entry.family = sk->sk_family; - read_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock); + spin_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock); lopt = icsk->icsk_accept_queue.listen_opt; if (!lopt || !listen_sock_qlen(lopt)) @@ -776,7 +776,7 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk, } out: - read_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock); + spin_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock); return err; } |
