linux-kernel - Re: [PATCH] mm, slab: don't wrap internal functions with alloc

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Message-ID: <202405241625.9FF3B5E@keescook>
Date: Fri, 24 May 2024 16:26:41 -0700
From: Kees Cook <keescook@...omium.org>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: Christoph Lameter <cl@...ux.com>, David Rientjes <rientjes@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Hyeonggon Yoo <42.hyeyoo@...il.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	Suren Baghdasaryan <surenb@...gle.com>
Subject: Re: [PATCH] mm, slab: don't wrap internal functions with
 alloc_hooks()

On Wed, May 22, 2024 at 11:50:37AM +0200, Vlastimil Babka wrote:
> The functions __kmalloc_noprof(), kmalloc_large_noprof(),
> kmalloc_trace_noprof() and their _node variants are all internal to the
> implementations of kmalloc_noprof() and kmalloc_node_noprof() and are
> only declared in the "public" slab.h and exported so that those
> implementations can be static inline and distinguish the build-time
> constant size variants. The only other users for some of the internal
> functions are slub_kunit and fortify_kunit tests which make very
> short-lived allocations.

If it's only internal, I'm happy to drop it from fortify_kunit.

-Kees

-- 
Kees Cook