From: Cong Wang <amwang@redhat.com>
To: netdev@vger.kernel.org
Cc: Cong Wang <amwang@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
Jiri Pirko <jiri@resnulli.us>,
linux-kernel@vger.kernel.org
Subject: [PATCH 6/7] netpoll: use netpoll_rx_on() in netpoll_rx()
Date: Fri, 27 Jul 2012 23:38:03 +0800 [thread overview]
Message-ID: <1343403484-29347-7-git-send-email-amwang@redhat.com> (raw)
In-Reply-To: <1343403484-29347-1-git-send-email-amwang@redhat.com>
The logic of the code is same, just call netpoll_rx_on().
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
---
include/linux/netpoll.h | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 36f938c..f654fa3 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -63,6 +63,13 @@ static inline void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
#ifdef CONFIG_NETPOLL
+static inline int netpoll_rx_on(struct sk_buff *skb)
+{
+ struct netpoll_info *npinfo = rcu_dereference_bh(skb->dev->npinfo);
+
+ return npinfo && (!list_empty(&npinfo->rx_np) || npinfo->rx_flags);
+}
+
static inline bool netpoll_rx(struct sk_buff *skb)
{
struct netpoll_info *npinfo;
@@ -70,11 +77,11 @@ static inline bool netpoll_rx(struct sk_buff *skb)
bool ret = false;
local_irq_save(flags);
- npinfo = rcu_dereference_bh(skb->dev->npinfo);
- if (!npinfo || (list_empty(&npinfo->rx_np) && !npinfo->rx_flags))
+ if (!netpoll_rx_on(skb))
goto out;
+ npinfo = rcu_dereference_bh(skb->dev->npinfo);
spin_lock(&npinfo->rx_lock);
/* check rx_flags again with the lock held */
if (npinfo->rx_flags && __netpoll_rx(skb, npinfo))
@@ -86,13 +93,6 @@ out:
return ret;
}
-static inline int netpoll_rx_on(struct sk_buff *skb)
-{
- struct netpoll_info *npinfo = rcu_dereference_bh(skb->dev->npinfo);
-
- return npinfo && (!list_empty(&npinfo->rx_np) || npinfo->rx_flags);
-}
-
static inline int netpoll_receive_skb(struct sk_buff *skb)
{
if (!list_empty(&skb->dev->napi_list))
--
1.7.7.6
next prev parent reply other threads:[~2012-07-27 15:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-27 15:37 [PATCH 0/7] netpoll and netconsole fixes for 3.6 Cong Wang
2012-07-27 15:37 ` [PATCH 1/7] netpoll: use GFP_ATOMIC in slave_enable_netpoll() and __netpoll_setup() Cong Wang
2012-08-03 9:17 ` Eric Dumazet
2012-08-03 9:34 ` Cong Wang
2012-08-03 10:10 ` Eric Dumazet
2012-08-06 9:08 ` Cong Wang
2012-08-06 9:44 ` Eric Dumazet
2012-08-06 12:31 ` Cong Wang
2012-07-27 15:37 ` [PATCH 2/7] netpoll: make __netpoll_cleanup non-block Cong Wang
2012-07-27 18:40 ` Neil Horman
2012-07-30 1:42 ` Cong Wang
2012-07-27 15:38 ` [PATCH 3/7] netconsole: do not release spin_lock before calling __netpoll_cleanup Cong Wang
2012-07-27 15:38 ` [PATCH 4/7] bridge: call NETDEV_RELEASE notifier in br_del_if() Cong Wang
2012-07-27 15:50 ` Stephen Hemminger
2012-07-30 1:59 ` Cong Wang
2012-07-27 15:38 ` [PATCH 5/7] netpoll: take rcu_read_lock_bh() in netpoll_rx() Cong Wang
2012-07-27 15:38 ` Cong Wang [this message]
2012-07-27 15:38 ` [PATCH 7/7] netpoll: take rcu_read_lock_bh() in netpoll_send_skb_on_dev() Cong Wang
2012-08-01 2:22 ` [PATCH 0/7] netpoll and netconsole fixes for 3.6 Cong Wang
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