netdev - Re: [PATCH net-next 02/10] vxlan: handle skb

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Message-ID: <OF0B8CEFF8.C94A266F-ON85257B81.004D331F-85257B81.004D7015@us.ibm.com>
Date:	Wed, 5 Jun 2013 10:05:51 -0400
From:	David Stevens <dlstevens@...ibm.com>
To:	Cong Wang <xiyou.wangcong@...il.com>
Cc:	netdev@...r.kernel.org, netdev-owner@...r.kernel.org
Subject: Re: [PATCH net-next 02/10] vxlan: handle skb_clone failure

netdev-owner@...r.kernel.org wrote on 06/05/2013 02:59:56 AM:

> From: Cong Wang <xiyou.wangcong@...il.com>
> To: netdev@...r.kernel.org
> Date: 06/05/2013 03:00 AM
> Subject: Re: [PATCH net-next 02/10] vxlan: handle skb_clone failure
> Sent by: netdev-owner@...r.kernel.org
> 
> On Wed, 05 Jun 2013 at 04:24 GMT, Stephen Hemminger 
> <stephen@...workplumber.org> wrote:
> >        skb1 = skb_clone(skb, GFP_ATOMIC);
> > -      rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
> > -      if (rc == NETDEV_TX_OK)
> > -         rc = rc1;
> > +      if (skb1) {
> > +         rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
> > +         if (rc == NETDEV_TX_OK)
> > +            rc = rc1;
> > +      }
> 
> If OOM, shouldn't we exit immediately instead of continue handle the
> next one?

It could be a temporary condition; trying again doesn't really hurt,
in case some do go through. So, I prefer this, but could live with
bailing for all destinations, too.

                                                        +-DLS

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