linux-kernel - Re: [PATCH 2/4] net: use numa_node in net

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Message-ID: <86802c440707040954w409c50b5qf9016db7f567479e@mail.gmail.com>
Date:	Wed, 4 Jul 2007 09:54:00 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"David Miller" <davem@...emloft.net>
Cc:	hch@...radead.org, shemminger@...ux-foundation.org,
	akpm@...ux-foundation.org, ak@...e.de, greg@...ah.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 2/4] net: use numa_node in net_devcice->dev instead of parent

On 7/4/07, David Miller <davem@...emloft.net> wrote:
> From: Christoph Hellwig <hch@...radead.org>
> Date: Wed, 4 Jul 2007 09:51:20 +0100
>
> > On Tue, Jul 03, 2007 at 05:30:51PM -0700, Yinghai Lu wrote:
> > > [PATCH 2/4] net: use numa_node in net_devcice->dev instead of parent
> > >
> > > Signed-off-by: Yinghai Lu <yinghai.lu@....com>
> > > diff --git a/net/core/skbuff.c b/net/core/skbuff.c
> > > index 27cfe5f..005cc1c 100644
> > > --- a/net/core/skbuff.c
> > > +++ b/net/core/skbuff.c
> > > @@ -217,7 +217,7 @@ nodata:
> > >  struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
> > >             unsigned int length, gfp_t gfp_mask)
> > >  {
> > > -   int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
> > > +   int node = dev_to_node(&dev->dev);
> >
> > This looks wrong to me unless the device model has once again changed
> > silently.  When I wrote this code &dev->dev was a device allocated
> > as part of the netdevice and the parent is the pci (or whatever) device
> > that has the node information.
>
> Correct, this change is completely bogus.
> -

please check that with

http://lkml.org/lkml/2007/7/3/419

[PATCH 1/4] try parent numa_node at first before using default

YH
-
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