Replace use of the legacy vm_flags_t flags with vma_flags_t values where
VMA flags are tested directly in the THP and khugepaged logic.
The thp_vma_allowable_orders() family of functions, hugepage_madvise() and
khugepaged_enter_vma() continue to take legacy flags for the time being.
Also update BUG_ON()'s to VM_WARN_ON_ONCE() while here.
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=5