slub: fall back to node_to_mem_node() node if allocating on memoryless node

slub: fall back to node_to_mem_node() node if allocating on memoryless node

Update the SLUB code to search for partial slabs on the nearest node with
memory in the presence of memoryless nodes.  Additionally, do not consider
it to be an ALLOC_NODE_MISMATCH (and deactivate the slab) when a
memoryless-node specified allocation goes off-node.

Signed-off-by: Joonsoo Kim <[email protected]>
Signed-off-by: Nishanth Aravamudan <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Han Pingtian <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Anton Blanchard <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Wanpeng Li <[email protected]>
Cc: Tejun Heo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>