linux-kernel - Re: [PATCH 12/20] mm/slab: move pre/post-alloc hooks from slab.h to slub.c

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Message-ID: <202311132042.CA0081D@keescook>
Date:   Mon, 13 Nov 2023 20:42:50 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     David Rientjes <rientjes@...gle.com>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>,
        Roman Gushchin <roman.gushchin@...ux.dev>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Marco Elver <elver@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Muchun Song <muchun.song@...ux.dev>,
        kasan-dev@...glegroups.com, cgroups@...r.kernel.org
Subject: Re: [PATCH 12/20] mm/slab: move pre/post-alloc hooks from slab.h to
 slub.c

On Mon, Nov 13, 2023 at 08:13:53PM +0100, Vlastimil Babka wrote:
> We don't share the hooks between two slab implementations anymore so
> they can be moved away from the header. As part of the move, also move
> should_failslab() from slab_common.c as the pre_alloc hook uses it.
> This means slab.h can stop including fault-inject.h and kmemleak.h.
> Fix up some files that were depending on the includes transitively.
> 
> Signed-off-by: Vlastimil Babka <vbabka@...e.cz>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook