linux-kernel - Re: [PATCH V5 0/8] mm/slab: reduce slab accounting memory overhead by allocating slabobj

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Message-ID: <aV9XTE7mHKWgHQZF@hyeyoo>
Date: Thu, 8 Jan 2026 16:05:48 +0900
From: Harry Yoo <harry.yoo@...cle.com>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: akpm@...ux-foundation.org, andreyknvl@...il.com, cl@...two.org,
        dvyukov@...gle.com, glider@...gle.com, hannes@...xchg.org,
        linux-mm@...ck.org, mhocko@...nel.org, muchun.song@...ux.dev,
        rientjes@...gle.com, roman.gushchin@...ux.dev, ryabinin.a.a@...il.com,
        shakeel.butt@...ux.dev, surenb@...gle.com, vincenzo.frascino@....com,
        yeoreum.yun@....com, tytso@....edu, adilger.kernel@...ger.ca,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        cgroups@...r.kernel.org, hao.li@...ux.dev
Subject: Re: [PATCH V5 0/8] mm/slab: reduce slab accounting memory overhead
 by allocating slabobj_ext metadata within unsed slab space

On Wed, Jan 07, 2026 at 06:43:30PM +0100, Vlastimil Babka wrote:
> On 1/5/26 09:02, Harry Yoo wrote:
> > Happy new year!
> > 
> > V4: https://lore.kernel.org/linux-mm/20251027122847.320924-1-harry.yoo@oracle.com
> > V4 -> V5:
> > - Patch 4: Fixed returning false when the return type is unsigned long
> > - Patch 7: Fixed incorrect calculation of slabobj_ext offset (Thanks Hao!)
> 
> Besides the stuff pointed out the rest seemed ok to me.

Thanks for reviewing, Vlastimil!

> Can you resend with those addressed,

Will do.

> and rebased on slab.git slab/for-7.0/obj_metadata to avoid a conflict
> in patch 8/8 with Hao's comment update patch there?

Will do.

> I will add the series on top there then. Thanks!

Thanks a lot!

-- 
Cheers,
Harry / Hyeonggon