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From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "David Miller" <davem@davemloft.net>
Cc: mingo@elte.hu, greg@kroah.com, akpm@linux-foundation.org,
	jeff@garzik.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/8] net: use numa_node in net_devcice->dev instead of parent
Date: Tue, 19 Feb 2008 15:10:12 -0800	[thread overview]
Message-ID: <86802c440802191510m7afc200eg979ebd4a1cf4a41f@mail.gmail.com> (raw)
In-Reply-To: <20080219.145512.142721224.davem@davemloft.net>

On Feb 19, 2008 2:55 PM, David Miller <davem@davemloft.net> wrote:
> From: Yinghai Lu <Yinghai.Lu@Sun.COM>
> Date: Tue, 19 Feb 2008 11:42:48 -0800
>
> > On Tuesday 19 February 2008 03:41:10 am David Miller wrote:
> > > From: Ingo Molnar <mingo@elte.hu>
> > > Date: Tue, 19 Feb 2008 12:21:46 +0100
> > >
> > > >
> > > > * Yinghai Lu <Yinghai.Lu@Sun.COM> wrote:
> > > >
> > > > >  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);
> > > >
> > > > i think this is a fix for the networking folks. (Dave Cc:-ed)
> > >
> > > It keeps getting NAK's because it's wrong.
> > >
> > > The author of the patch hasn't convinced folks why this is really
> > > necessary, and using the net_device embedded device struct is
> > > definitely wrong here.  It doesn't contain the NUMA node information,
> > > the physical device does, and that is what the parent it.
> >
> > can you check the 5/8?
> > that will make sure every struct device get numa_node get assigned.
>
> Why do we need to bother with that if the parent will have the
> necessary information for us here?

less code?

or some kind of usb or other bus interface. may have several level...

YH

  reply	other threads:[~2008-02-19 23:10 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200802190311.44404.yinghai.lu@sun.com>
2008-02-19 11:13 ` [PATCH 1/8] x86_64: check MSR to get MMCONFIG for AMD Family 10h Opteron v3 Yinghai Lu
2008-02-21  1:36   ` [PATCH] x86: skip it if Fam 10h only handle bus 0 Yinghai Lu
2008-02-19 11:13 ` [PATCH 2/8] x86_64: check and enable MMCONFIG for AMD Family 10h Opteron v3 Yinghai Lu
2008-02-19 11:15 ` [PATCH 4/8] x86_64: use bus conf in NB conf fun1 to get bus range on node Yinghai Lu
2008-02-19 11:20 ` [PATCH 3/8] x86_64: get mp_bus_to_node as early v4 Yinghai Lu
2008-02-19 11:20 ` [PATCH 5/8] try parent numa_node at first before using default v2 Yinghai Lu
2008-02-19 17:54   ` Greg KH
2008-02-19 19:51     ` Yinghai Lu
2008-02-19 11:20 ` [PATCH 6/8] net: use numa_node in net_devcice->dev instead of parent Yinghai Lu
2008-02-19 11:21   ` Ingo Molnar
2008-02-19 11:41     ` David Miller
2008-02-19 19:42       ` Yinghai Lu
2008-02-19 19:47         ` Yinghai Lu
2008-02-19 22:55         ` David Miller
2008-02-19 23:10           ` Yinghai Lu [this message]
2008-02-20  6:27             ` Ingo Molnar
2008-02-20  8:33               ` Yinghai Lu
2008-02-19 11:21 ` [PATCH 7/8] x86_64: get boot_cpu_id as early for k8_scan_nodes Yinghai Lu
2008-02-19 11:21 ` [PATCH 8/8] x86_64: multi pci root bus with different io resource range Yinghai Lu

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