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SubjectRe: [PATCH v3] drivers/base/memory.c: cache blocks in radix tree to accelerate lookup
Scott Cheloha <> writes:

> Searching for a particular memory block by id is slow because each block
> device is kept in an unsorted linked list on the subsystem bus.
> Lookup is much faster if we cache the blocks in a radix tree. Memory
> subsystem initialization and hotplug/hotunplug is at least a little faster
> for any machine with more than ~100 blocks, and the speedup grows with
> the block count.
> Signed-off-by: Scott Cheloha <>
> Acked-by: David Hildenbrand <>

Acked-by: Nathan Lynch <>

Thanks Scott.

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