netdev - Re: [PATCH net v6 4/4] tg3: Fix tx_pending checks for tg3_tso

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Message-Id: <20140905.171306.1460013939580748402.davem@davemloft.net>
Date:	Fri, 05 Sep 2014 17:13:06 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	prashant@...adcom.com, bpoirier@...e.de, mchan@...adcom.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v6 4/4] tg3: Fix tx_pending checks for tg3_tso_bug

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 05 Sep 2014 17:03:30 -0700

> Instead of this private helper (and pretty limited one btw), we could
> add a core function, that would build skbs with order-0 fragments.
> 
> Instead of skb_linearize(), I guess many call sites could instead use
> this new helper.
> 
> Because as you said, skb_linearize() of one 64KB GSO packet can ask
> order-5 allocations, and this generally does not work reliably.

xen-netback could make use of this helper too.
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