Replace use of the legacy vm_flags_t flags with vma_flags_t values
throughout the madvise logic.
In order to do so, update ksm_madvise() and hugepage_madvise() to take a
vma_flags_t pointer, and update their other callers in mremap and the
powerpc KVM ultravisor code accordingly.
In the latter case we replace vm_flags_reset() with vma_overwrite_flags().
The VMA is write locked at this point, so the atomic flags preserved by
vma_overwrite_flags() cannot differ from those copied, and the behaviour
is unchanged.
No functional change intended.
Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Sashiko has reviewed this patch and found no issues.
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Sashiko AI review · https://sashiko.dev/#/patchset/20261105-late-2026-vma-flags-v1-0-0d3cd15ab75f@kernel.org?part=7