All platforms could benefit from page order check against MAX_PAGE_ORDER
before allocating a CMA area for gigantic hugetlb pages. Let's move this
check from individual platforms to generic hugetlb.
Link: https://lkml.kernel.org/r/20240209054221.1403364-1-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
else
order = CONT_PMD_SHIFT - PAGE_SHIFT;
- /*
- * HugeTLB CMA reservation is required for gigantic
- * huge pages which could not be allocated via the
- * page allocator. Just warn if there is any change
- * breaking this assumption.
- */
- WARN_ON(order <= MAX_PAGE_ORDER);
hugetlb_cma_reserve(order);
}
#endif /* CONFIG_CMA */
*/
order = mmu_psize_to_shift(MMU_PAGE_16G) - PAGE_SHIFT;
- if (order) {
- VM_WARN_ON(order <= MAX_PAGE_ORDER);
+ if (order)
hugetlb_cma_reserve(order);
- }
}
bool node_specific_cma_alloc = false;
int nid;
+ /*
+ * HugeTLB CMA reservation is required for gigantic
+ * huge pages which could not be allocated via the
+ * page allocator. Just warn if there is any change
+ * breaking this assumption.
+ */
+ VM_WARN_ON(order <= MAX_PAGE_ORDER);
cma_reserve_called = true;
if (!hugetlb_cma_size)