Re: [PATCH] mm: kmalloc_index: remove case when size is more than 32MB

From: Matthew Wilcox
Date: Sat May 08 2021 - 19:20:31 EST

On Sun, May 09, 2021 at 07:13:28AM +0900, Hyeonggon Yoo wrote:
> the return value of kmalloc_index is used as index of kmalloc_caches,

it doesn't matter. every few weeks somebody posts a patch to "optimise"
kmalloc_index, failing to appreciate that it's only ever run at compile
time because it's all under __builtin_constant_p().