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| 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/ipv6/inet6_connection_sock.c | |
| parent | 8b929ab12fb2ab960adb3c3ec8d107fef5ff3243 (diff) | |
| download | linux-b282705336e03fc7b9377a278939594870a40f96.tar.gz linux-b282705336e03fc7b9377a278939594870a40f96.tar.bz2 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/ipv6/inet6_connection_sock.c')
| -rw-r--r-- | net/ipv6/inet6_connection_sock.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c index 2f3bbe569e8f..6927f3fb5597 100644 --- a/net/ipv6/inet6_connection_sock.c +++ b/net/ipv6/inet6_connection_sock.c @@ -124,7 +124,7 @@ struct request_sock *inet6_csk_search_req(struct sock *sk, u32 hash = inet6_synq_hash(raddr, rport, lopt->hash_rnd, lopt->nr_table_entries); - write_lock(&icsk->icsk_accept_queue.syn_wait_lock); + spin_lock(&icsk->icsk_accept_queue.syn_wait_lock); for (req = lopt->syn_table[hash]; req != NULL; req = req->dl_next) { const struct inet_request_sock *ireq = inet_rsk(req); @@ -138,7 +138,7 @@ struct request_sock *inet6_csk_search_req(struct sock *sk, break; } } - write_unlock(&icsk->icsk_accept_queue.syn_wait_lock); + spin_unlock(&icsk->icsk_accept_queue.syn_wait_lock); return req; } |