From: Harry Yoo <harry.yoo@oracle.com>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Hao Li <hao.li@linux.dev>,
akpm@linux-foundation.org, cl@gentwo.org, rientjes@google.com,
roman.gushchin@linux.dev, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] slub: let need_slab_obj_exts() return false if SLAB_NO_OBJ_EXT is set
Date: Fri, 6 Feb 2026 19:01:03 +0900 [thread overview]
Message-ID: <aYW732VZACRIzr-r@hyeyoo> (raw)
In-Reply-To: <67ebb9f2-b383-4b68-949e-239d8c7b18f0@suse.cz>
On Fri, Feb 06, 2026 at 10:40:54AM +0100, Vlastimil Babka wrote:
> On 2/6/26 01:53, Harry Yoo wrote:
> > On Thu, Feb 05, 2026 at 08:07:23PM +0800, Hao Li wrote:
> >> SLAB_NO_OBJ_EXT is set for boot caches, but need_slab_obj_exts() doesn't
> >> check this flag. We should return false unconditionally when
> >> SLAB_NO_OBJ_EXT is set.
> >>
> >> Signed-off-by: Hao Li <hao.li@linux.dev>
> >> ---
> >
> > Looks reasonable to me,
> > Acked-by: Harry Yoo <harry.yoo@oracle.com>
>
> Thanks, added to slab/for-7.0/obj_metadata
> I think it doesn't change anything at the moment?
...unless you enable memory allocation profiling :)
> But a correct thing to do.
--
Cheers,
Harry / Hyeonggon
next prev parent reply other threads:[~2026-02-06 10:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 12:07 Hao Li
2026-02-06 0:53 ` Harry Yoo
2026-02-06 9:40 ` Vlastimil Babka
2026-02-06 10:01 ` Harry Yoo [this message]
2026-02-06 10:03 ` Vlastimil Babka
2026-02-06 10:21 ` Harry Yoo
2026-02-06 11:35 ` Hao Li
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