Hi,
unsigned long hsz = 0;
@@ -1780,6 +1800,16 @@ static bool try_to_unmap_one(struct folio *folio, struct vm_area_struct *vma,
hugetlb_vma_unlock_write(vma);
}
pteval = huge_ptep_clear_flush(vma, address, pvmw.pte);
+ } else if (folio_test_large(folio) && !(flags & TTU_HWPOISON) &&
+ can_batch_unmap_folio_ptes(address, folio, pvmw.pte)) {
+ nr_pages = folio_nr_pages(folio);
+ flush_cache_range(vma, range.start, range.end);
+ pteval = get_and_clear_full_ptes(mm, address, pvmw.pte, nr_pages, 0);
+ if (should_defer_flush(mm, flags))
+ set_tlb_ubc_flush_pending(mm, pteval, address,
+ address + folio_size(folio));
+ else
+ flush_tlb_range(vma, range.start, range.end);
} else {
I have some fixes [1] that will collide with this series. I'm currently
preparing a v2, and am not 100% sure when the fixes will get queued+merged.
I'll base them against mm-stable for now, and send them out based on
that, to avoid the conflicts here (should all be fairly easy to resolve
from a quick glimpse).
So we might have to refresh this series here if the fixes go in first.
[1] https://lkml.kernel.org/r/20250129115411.2077152-1-david@xxxxxxxxxx
--
Cheers,
David / dhildenb
