RE: [RFC PATCH 12/12] mm: let slab/slub/slob use mirrored memory

[Luck, Tony]

-	page = alloc_pages_exact_node(nodeid, flags | __GFP_NOTRACK, cachep->gfporder);
+	page = alloc_pages_exact_node(nodeid, flags | __GFP_NOTRACK | __GFP_MIRROR,
+					cachep->gfporder);
 
Set some global "got_mirror"[*] if we have any mirrored memory to __GFP_MIRROR, else to 0.

then
	
	page = alloc_pages_exact_node(nodeid, flags | __GFP_NOTRACK | got_mirror,
					cachep->gfporder);

-Tony

[*] Someone will suggest a better name. I'm bad at picking names.
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