Re: [PATCH v2 12/13] mm: Move __alloc_pages() to mm/internal.h

[sashiko-bot@kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] Missing EXPORT_SYMBOL for out-of-line alloc_pages_node_noprof() causes widespread module linker errors.
--

commit 42f7742177beb0066c00a7aa081250feb5859171
Author: Brendan Jackman <jackmanb@google.com>

mm: Move __alloc_pages() to mm/internal.h

This commit moves the __alloc_pages() family of internal functions to
mm/internal.h to restrict them to the mm subsystem. It also moves
alloc_pages_node_noprof() out-of-line into mm/page_alloc.c since it
depends on __alloc_pages_noprof().

> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 36f0d625a4390..38238203ef7b0 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c

[ ... ]

> @@ -5419,6 +5419,17 @@ struct page *__alloc_pages_noprof(gfp_t gfp, unsigned int order,
>  }
>  EXPORT_SYMBOL(__alloc_pages_noprof);

[Severity: Low]
Since __alloc_pages_noprof() is no longer visible outside of mm/, should this
EXPORT_SYMBOL be removed?

> +struct page *alloc_pages_node_noprof(int nid, gfp_t gfp_mask, unsigned int order)
> +{
> +	if (nid == NUMA_NO_NODE)
> +		nid = numa_mem_id();
> +
> +	VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES);
> +	warn_if_node_offline(nid, gfp_mask);
> +
> +	return __alloc_pages_noprof(gfp_mask, order, nid, NULL);
> +}

[Severity: Low]
Does this code cause module linker errors? alloc_pages_node_noprof() is called
by the alloc_pages_node() macro in include/linux/gfp.h, but it does not have
an EXPORT_SYMBOL.

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Sashiko AI review · https://sashiko.dev/#/patchset/20260622-alloc-trylock-v2-0-31f31367d420@google.com?part=12