Re: [PATCH] mm/mempool: use static key for boot-time debug enablement

[Andrew Morton]

On Wed, 27 May 2026 06:46:34 -0400 lirongqing <lirongqing@xxxxxxxxx> wrote:

> Replace the #ifdef CONFIG_SLUB_DEBUG_ON conditional compilation with a
> static key (mempool_debug_enabled). This allows enabling mempool debugging
> at boot time via:
> 
>     mempool_debug
> 
> Instead of requiring CONFIG_SLUB_DEBUG_ON at compile time. Benefits:

Sashiko is suggesting that we use mempool_debug=<...> here.  Which permits
mempool_debug=n if for some reason the kernel is defaulting to "on".  Which
we might choose to do in the future.   I think that's a little better - do others agree?

Same goes for the new dmapool_debug.

Sashiko asked a second question:
	https://sashiko.dev/#/patchset/20260527104634.2434-1-lirongqing@xxxxxxxxx