diff options
| author | Eliezer Tamir <eliezer.tamir@linux.intel.com> | 2013-07-08 17:20:34 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-09 06:25:45 +0400 |
| commit | cbf55001b2ddb814329735641be5d29b08c82b08 (patch) | |
| tree | 110c1191f4b6699bef04ebdf45e4677c623a7ceb /net/ipv4/tcp.c | |
| parent | c7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1 (diff) | |
| download | linux-cbf55001b2ddb814329735641be5d29b08c82b08.tar.xz | |
net: rename low latency sockets functions to busy poll
Rename functions in include/net/ll_poll.h to busy wait.
Clarify documentation about expected power use increase.
Rename POLL_LL to POLL_BUSY_LOOP.
Add need_resched() testing to poll/select busy loops.
Note, that in select and poll can_busy_poll is dynamic and is
updated continuously to reflect the existence of supported
sockets with valid queue information.
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 46ed9afd1f5e..15cbfa94bd8e 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1554,9 +1554,9 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, struct sk_buff *skb; u32 urg_hole = 0; - if (sk_valid_ll(sk) && skb_queue_empty(&sk->sk_receive_queue) - && (sk->sk_state == TCP_ESTABLISHED)) - sk_poll_ll(sk, nonblock); + if (sk_can_busy_loop(sk) && skb_queue_empty(&sk->sk_receive_queue) && + (sk->sk_state == TCP_ESTABLISHED)) + sk_busy_loop(sk, nonblock); lock_sock(sk); |