diff options
| -rw-r--r-- | mm/sparse.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index b5b2b6f7041b..dfabe554adf8 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -600,6 +600,11 @@ void __init sparse_init(void) BUILD_BUG_ON(!is_power_of_2(sizeof(struct mem_section))); memblocks_present(); + if (compound_info_has_mask()) { + VM_WARN_ON_ONCE(!IS_ALIGNED((unsigned long) pfn_to_page(0), + MAX_FOLIO_VMEMMAP_ALIGN)); + } + pnum_begin = first_present_section_nr(); nid_begin = sparse_early_nid(__nr_to_section(pnum_begin)); |