Re: [PATCH v4 1/7] mm/mremap: Optimize the start addresses in move_page_tables()

On 6/20/23 17:16, Joel Fernandes wrote:

Considering our discussion above that hugetlb mremap addresses should always starts at a PMD boundary, maybe I can just add a warning to the if() like so to detect any potential?

if (is_vm_hugetlb_page(vma)) {         WARN_ON_ONCE(old_addr - old_end != len);

Oops, I meant WARN_ON_ONCE(old_end - old_addr != len);

to make sure we did not mess up hugetlb mremaps.

thanks,

- Joel