linux-kernel - Re: [PATCH 2/2] net: make net and forcedeth to use kmalloc

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Message-id: <468ABF92.5030800@sun.com>
Date:	Tue, 03 Jul 2007 14:28:50 -0700
From:	Yinghai Lu <Yinghai.Lu@....COM>
To:	Stephen Hemminger <shemminger@...ux-foundation.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, Andi Kleen <ak@...e.de>,
	Greg KH <greg@...ah.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH 2/2] net: make net and forcedeth to use kmalloc_node

Stephen Hemminger wrote:
> On Tue, 3 Jul 2007 11:58:40 -0700
> Andrew Morton <akpm@...ux-foundation.org> wrote:
> 
>> On Fri, 29 Jun 2007 13:30:36 -0700
>> Yinghai Lu <Yinghai.Lu@....COM> wrote:
>>
>>> [PATCH 2/2] net: make net and forcedeth to use kmalloc_node
>> Please copy netdev@...r.kernel.org on net patches.
>>
>> This patch modifies a net driver as well as the networking core.  These
>> subsytems have different maintainers who run different development trees. 
>> Consequently I must split your patch into two and change their titles and
>> changelogs appropriately.
>>
>> Please do this for us in future, thanks.
>>
>>
>>> diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
>>> index 42ba1c0..6d53b52 100644
>>> --- a/drivers/net/forcedeth.c
>>> +++ b/drivers/net/forcedeth.c
>>> @@ -1383,7 +1383,7 @@ static int nv_alloc_rx(struct net_device *dev)
>>>  		less_rx = np->last_rx.orig;
>>>  
>>>  	while (np->put_rx.orig != less_rx) {
>>> -		struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
>>> +		struct sk_buff *skb = dev_alloc_skb_node(np->rx_buf_sz + NV_RX_ALLOC_PAD, dev_to_node(&dev->dev));
>> If we're going to do this then it would probably make sense to change
>> dev_alloc_skb_node() so that it takes a `struct net_device *' rather than a
>> bare node-id.  That's a call which the net guys will need to make, which is
>> why we cc them on our emails.
> 
> The driver should use netdev_alloc_skb. That routine is supposed to be overriden
> on architecture's that need per node changes.

do you mean:
use dev_alloc_skb_node for numa arch.
and other non numa will use macro or static inline to dev_alloc_skb

YH
-
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