On Tue, Mar 07, 2017 at 01:07:54AM +0100, Christoph Hellwig wrote: > I like killing it, but shouldn't we just try a normal kmem_zalloc? > At least for the fallback it's the right thing, and even for an > order 2 allocation it seems like a useful first try. I'm confused -- kmem_zalloc_large tries kmem_zalloc with KM_MAYFAIL and only falls back to __vmalloc if it doesn't get anything. Or maybe I've misunderstood, and you're asking if we should try kmem_zalloc(4 pages), then kmem_zalloc(1 page), and only then switch to the __vmalloc calls? --D
