linux-kernel - Re: [PATCH] mm/cma: Remove CONFIG_CMA

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Message-ID: <20251113175745.2e29afe7@endymion>
Date: Thu, 13 Nov 2025 17:57:45 +0100
From: Jean Delvare <jdelvare@...e.de>
To: "David Hildenbrand (Red Hat)" <david@...nel.org>
Cc: linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/cma: Remove CONFIG_CMA_SYSFS option

On Thu, 13 Nov 2025 16:35:03 +0100, David Hildenbrand (Red Hat) wrote:
> On 13.11.25 14:56, Jean Delvare wrote:
> > The sysfs interface to CMA has a marginal runtime cost and a small
> > footprint, there's no reason not to include it in all kernels where
> > the dependencies are satisfied.
> > 
> > Signed-off-by: Jean Delvare <jdelvare@...e.de>
> > ---
> > As discussed with David:
> >    https://lkml.org/lkml/2025/8/6/371  
> 
> Thanks for the reminder, it sounded familiar but I couldn't remember 
> when this was discussed.
> 
> Hoping this was properly compile-tested :)

Yes of course, I build-tested with both CONFIG_SYSFS=y and CONFIG_SYSFS
disabled.

> Acked-by: David Hildenbrand (Red Hat) <david@...nel.org>

Thanks,
-- 
Jean Delvare
SUSE L3 Support