Hi Ryan,

On Thu, Feb 20, 2025 at 10:46 AM David Hildenbrand [off-list ref] wrote:

On 17.02.25 15:04, Ryan Roberts wrote:

quoted

In order to fix a bug, arm64 needs to be told the size of the huge page
for which the huge_pte is being set in huge_ptep_get_and_clear().

s/set/cleared/ ?

quoted

Provide for this by adding an `unsigned long sz` parameter to the
function. This follows the same pattern as huge_pte_clear() and
set_huge_pte_at().

This commit makes the required interface modifications to the core mm as
well as all arches that implement this function (arm64, loongarch, mips,
parisc, powerpc, riscv, s390, sparc). The actual arm64 bug will be fixed
in a separate commit.

Cc: stable@vger.kernel.org
Fixes: 66b3923a1a0f ("arm64: hugetlb: add support for PTE contiguous bit")
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>

Reviewed-by: Alexandre Ghiti <redacted> # riscv

Thanks,

Alex

quoted

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Acked-by: David Hildenbrand <redacted>

--
Cheers,

David / dhildenb