Re: [PATCH] mm/huge_memory: refactor after-split (page) cache code.

[Dan Carpenter]

On Wed, Jul 16, 2025 at 01:11:12PM -0400, Zi Yan wrote:
> Smatch/coverity checkers report NULL mapping referencing issues[1][2][3]
> every time the code is modified, because they do not understand that
> mapping cannot be NULL when a folio is in page cache in the code.
> Refactor the code to make it explicit.
> 
> No functional change is intended.
> 
> [1]https://lore.kernel.org/linux-mm/2afe3d59-aca5-40f7-82a3-a6d976fb0f4f@stanley.mountain/
> [2]https://lore.kernel.org/oe-kbuild/64b54034-f311-4e7d-b935-c16775dbb642@suswa.mountain/
> [3]https://lore.kernel.org/linux-mm/20250716145804.4836-1-antonio@xxxxxxxxxxxxx/
> 
> Suggested-by: David Hildenbrand <david@xxxxxxxxxx>
> Signed-off-by: Zi Yan <ziy@xxxxxxxxxx>
> ---

This silences the Smatch warning.  :)

regards,
dan carpenter