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authorEric W. Biederman <ebiederm@xmission.com>2014-03-27 15:41:04 -0700
committerDavid S. Miller <davem@davemloft.net>2014-03-29 17:58:37 -0400
commit080b3c19a4ffe4677d7449880f4d0cea07182474 (patch)
tree27705e68d54e29f2c9356d07fca45562b201f290 /net
parent66b5552fc2dfbaa6445b1bdadd10c9305ce261bd (diff)
downloadlinux-080b3c19a4ffe4677d7449880f4d0cea07182474.tar.gz
netpoll: Remove strong unnecessary assumptions about skbs
Remove the assumption that the skbs that make it to netpoll_send_skb_on_dev are allocated with find_skb, such that skb->users == 1 and nothing is attached that would prevent the skbs from being freed from hard irq context. Remove this assumption by replacing __kfree_skb on error paths with dev_kfree_skb_irq (in hard irq context) and kfree_skb (in process context). Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/netpoll.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 9fd88875faf..d44af2306f2 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -112,7 +112,7 @@ static void queue_process(struct work_struct *work)
struct netdev_queue *txq;
if (!netif_device_present(dev) || !netif_running(dev)) {
- __kfree_skb(skb);
+ kfree_skb(skb);
continue;
}
@@ -332,7 +332,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
npinfo = rcu_dereference_bh(np->dev->npinfo);
if (!npinfo || !netif_running(dev) || !netif_device_present(dev)) {
- __kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
return;
}