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authorEliezer Tamir <eliezer.tamir@linux.intel.com>2013-07-08 16:20:34 +0300
committerDavid S. Miller <davem@davemloft.net>2013-07-08 19:25:45 -0700
commitcbf55001b2ddb814329735641be5d29b08c82b08 (patch)
tree110c1191f4b6699bef04ebdf45e4677c623a7ceb /net/core
parentc7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1 (diff)
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')
-rw-r--r--net/core/datagram.c3
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 */