From: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
To: Ben Collins <bcollins@debian.org>
Cc: Sushant Sharma <sushant@cs.unm.edu>, linux-kernel@vger.kernel.org
Subject: Re: when is alloc_skb called
Date: Sat, 26 Jun 2004 02:16:49 -0300 [thread overview]
Message-ID: <40DD06C1.9080908@conectiva.com.br> (raw)
In-Reply-To: <20040607225744.GA26253@phunnypharm.org>
Ben Collins wrote:
> On Mon, Jun 07, 2004 at 03:29:14PM -0600, Sushant Sharma wrote:
>
>>Hi All
>>
>>I want to know which are the evnets
>>that can lead to the calling of alloc_skb
>>function which is used to allocate sk_buff.
>>Arrival and departure of packet are 2 events
>>which I know. Are there any other events/cases
>>which can lead to alloc_skb(...) function call in kernel.
>
>
> Some non-network related drivers use skb's for non-network related
> things (ieee1394 is one such abuser).
>
And some network protocol stacks use it to report events, like
connection requests, etc see the x25 code, for instance
(x25_establish_link, x25_terminate_link), sometimes allocating
1 byte, sometimes using the skb->cb scratch area.
- Arnaldo
prev parent reply other threads:[~2004-06-27 4:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-07 21:29 Sushant Sharma
2004-06-07 22:57 ` Ben Collins
2004-06-26 5:16 ` Arnaldo Carvalho de Melo [this message]
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