On Wed, Jun 11, 2025 at 02:06:52PM +0200, David Hildenbrand wrote:
> We setup the cache mode but ... don't forward the updated pgprot to
> insert_pfn_pud().
>
> Only a problem on x86-64 PAT when mapping PFNs using PUDs that
> require a special cachemode.
>
> Fix it by using the proper pgprot where the cachemode was setup.
>
> Identified by code inspection.
>
> Fixes: 7b806d229ef1 ("mm: remove vmf_insert_pfn_xxx_prot() for huge
> page-table entries")
> Cc: <[email protected]>
> Signed-off-by: David Hildenbrand <[email protected]>
> ---
> mm/huge_memory.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
Reviewed-by: Jason Gunthorpe <[email protected]>
Jason
