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From: Andrew Morton <akpm@linux-foundation.org>
To: lirongqing <lirongqing@baidu.com>
Cc: Jonathan Corbet <corbet@lwn.net>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Vlastimil Babka <vbabka@kernel.org>, Harry Yoo <harry@kernel.org>,
	Hao Li <hao.li@linux.dev>, Christoph Lameter <cl@gentwo.org>,
	David Rientjes <rientjes@google.com>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-mm@kvack.org>
Subject: Re: [PATCH] mm/mempool: use static key for boot-time debug enablement
Date: Wed, 27 May 2026 13:06:56 -0700	[thread overview]
Message-ID: <20260527130656.a448e84a30dc44617b51b45a@linux-foundation.org> (raw)
In-Reply-To: <20260527104634.2434-1-lirongqing@baidu.com>

On Wed, 27 May 2026 06:46:34 -0400 lirongqing <lirongqing@baidu.com> 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@baidu.com

  parent reply	other threads:[~2026-05-27 20:06 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-27 10:46 lirongqing
2026-05-27 13:03 ` Usama Arif
2026-05-27 16:43   ` Vlastimil Babka (SUSE)
2026-05-28  3:00   ` 答复: [外部邮件] " Li,Rongqing(ACG CCN)
2026-05-28 10:33     ` Usama Arif
2026-05-28 10:50       ` 答复: " Li,Rongqing(ACG CCN)
2026-05-28 12:59         ` Usama Arif
2026-05-29  9:39           ` Vlastimil Babka (SUSE)
2026-06-01  1:28             ` 答复: " Li,Rongqing(ACG CCN)
2026-05-27 20:06 ` Andrew Morton [this message]
2026-05-28  7:54   ` Vlastimil Babka (SUSE)
2026-05-27 21:29 ` Christoph Lameter (Ampere)
2026-05-27 22:13   ` Matthew Wilcox
2026-05-27 23:06     ` Christoph Lameter (Ampere)
2026-05-27 23:09       ` Matthew Wilcox
2026-05-28  7:57         ` 答复: [????] " Li,Rongqing(ACG CCN)

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