Re: [PATCH] mm: remove unneeded __meminit annotation

From: Matthew Wilcox
Date: Mon Aug 07 2023 - 22:31:18 EST


On Tue, Aug 08, 2023 at 09:58:31AM +0800, Miaohe Lin wrote:
> kswapd_stop() and kcompactd_stop() are only called when MEMORY_HOTREMOVE
> is enabled. So wrap them under CONFIG_MEMORY_HOTREMOVE and further remove
> __meminit annotation. No functional change intended.

I don't understand why this is an improvement. If CONFIG_MEMORY_HOTREMOVE
is disabled, the linker drops this section (... right?) If it's enabled,
then it gets shunted off into a cold section. So it seems like this
patch strictly makes things worse. But maybe I misunderstood.