diff options
| author |   Eliezer Tamir <eliezer.tamir@linux.intel.com> | 2013-07-08 16:20:34 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-07-08 19:25:45 -0700 |
| commit | cbf55001b2ddb814329735641be5d29b08c82b08 (patch) | |
| tree | 110c1191f4b6699bef04ebdf45e4677c623a7ceb /net/core/datagram.c | |
| parent | bridge: fix some kernel warning in multicast timer (diff) | |
| download | linux-dev-cbf55001b2ddb814329735641be5d29b08c82b08.tar.xz linux-dev-cbf55001b2ddb814329735641be5d29b08c82b08.zip | |
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/core/datagram.c')
| -rw-r--r-- | net/core/datagram.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c index 9cbaba98ce4c..6e9ab31e457e 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -208,7 +208,8 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags, } spin_unlock_irqrestore(&queue->lock, cpu_flags); - if (sk_valid_ll(sk) && sk_poll_ll(sk, flags & MSG_DONTWAIT)) + if (sk_can_busy_loop(sk) && + sk_busy_loop(sk, flags & MSG_DONTWAIT)) continue; /* User doesn't want to wait */ |