linux-kernel - Re: [RFC PATCH v3 3/7] slub: Reflow ___slab

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Message-ID: <db9d604a-1911-d1b5-5dc9-3e0e00e81556@suse.cz>
Date:   Fri, 27 Oct 2023 17:36:03 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     chengming.zhou@...ux.dev, cl@...ux.com, penberg@...nel.org
Cc:     rientjes@...gle.com, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, roman.gushchin@...ux.dev,
        42.hyeyoo@...il.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Chengming Zhou <zhouchengming@...edance.com>
Subject: Re: [RFC PATCH v3 3/7] slub: Reflow ___slab_alloc()

On 10/24/23 11:33, chengming.zhou@...ux.dev wrote:
> From: Chengming Zhou <zhouchengming@...edance.com>
> 
> The get_partial() interface used in ___slab_alloc() may return a single
> object in the "kmem_cache_debug(s)" case, in which we will just return
> the "freelist" object.
> 
> Move this handling up to prepare for later changes.
> 
> And the "pfmemalloc_match()" part is not needed for node partial slab,
> since we already check this in the get_partial_node().

Good catch.

> Signed-off-by: Chengming Zhou <zhouchengming@...edance.com>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>
Thanks!