dma kmalloc handling fixes
1. We need kmalloc_percpu for all of the now extended kmalloc caches array not just for each shift value. 2. init_kmem_cache_nodes() must assume node 0 locality for statically allocated dma kmem_cache structures even after boot is complete. Reported-and-tested-by: Alex Chiang <achiang@hp.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
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