Messages in this thread | | | Date | Thu, 7 Jul 2005 18:36:04 +0200 | From | Andi Kleen <> | Subject | Re: [another PATCH] Fix crash on boot in kmalloc_node IDE changes |
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On Thu, Jul 07, 2005 at 09:32:51AM -0700, Christoph Lameter wrote: > On Thu, 7 Jul 2005, Andi Kleen wrote: > > > On Thu, Jul 07, 2005 at 09:21:55AM -0700, Christoph Lameter wrote: > > > On Wed, 6 Jul 2005, Andi Kleen wrote: > > > > > > > Without this patch a dual Xeon EM64T machine would oops on boot > > > > because the hwif pointer here was NULL. I also added a check for > > > > pci_dev because it's doubtful that all IDE devices have pci_devs. > > > > > > Here is IMHO the right way to fix this. Test for the hwif != NULL and > > > test for pci_dev != NULL before determining the node number of the pci > > > bus that the device is connected to. Maybe we need a hwif_to_node for ide > > > drivers that is also able to determine the locality of other hardware? > > > > Hmm? Where is the difference? > > node = -1 if the node cannot be determined.
But that will crash right now.
Trading one crash for another doesn't seem to be particularly useful.
> > This is 100% equivalent to my code except that you compressed > > it all into a single expression. > > My patch consistently checks for hwif != NULL and pci_dev != NULL. > There was someother stuff in your patch. This patch does not add any > additional variables and is more readable.
No it was exactly the same except for a working node number.
-Andi
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