Re: [tip:x86/urgent] x86-32: Restore irq stacks NUMA-awareallocations

[Cyrill Gorcunov]

On Fri, Oct 29, 2010 at 08:32:26PM +0200, Peter Zijlstra wrote:
> On Fri, 2010-10-29 at 06:43 +0000, tip-bot for Eric Dumazet wrote:
> > +       irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
> > +                                              THREAD_FLAGS,
> > +                                              THREAD_ORDER)); 
> 
> Shouldn't we be checking for a NULL return from alloc_pages_node()
> before calling page_address() on it?

 It seems at this stage it's a panic() or BUG_ON candidate. (Which
reminds me GFP_PANIC flag proposal back in 2009 ;)

  Cyrill
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