Re: [PATCH] mm/sparse: don't check return value of alloc_bootmem calls

On Thu, 20 Dec 2012, Sasha Levin wrote:

So what we really need is to update the documentation of __alloc_bootmem_node, I'll send
a patch that does that instead.

It panics iff slab is not available to allocate from yet, otherwise it's 
just a wrapper around kmalloc().  This emits a warning to the kernel log, 
though, so __alloc_bootmem_node() should certainly not be called that late 
in the boot sequence.

Since __alloc_bootmem_node_nopanic() is the way to avoid the panic, I 
think the change that should be made here so to panic even when the 
kmalloc() fails in __alloc_bootmem_node(), __alloc_bootmem_node_high(), 
and __alloc_bootmem_low_node().

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