if (len > RGN_MAP_LIMIT)
return -ENOMEM;
+ /* handle fixed mapping: prevent overlap with huge pages */
+ if (flags & MAP_FIXED) {
+ if (is_hugepage_only_range(mm, addr, len))
+ return -EINVAL;
+ return addr;
+ }
+
#ifdef CONFIG_HUGETLB_PAGE
if (REGION_NUMBER(addr) == RGN_HPAGE)
addr = 0;