commit 1cb9dc4b475c ("mm: hwpoison: support recovery from HugePage
copy-on-write faults") added support to use the mc variants when
coping hugetlb pages on CoW faults.
Add the missing VM_FAULT_SET_HINDEX, so the right si_addr_lsb will be
passed to userspace to report the extension of the faulty area.
Signed-off-by: Oscar Salvador <osalvador@xxxxxxx>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 262456daf327..6be78e7d4f6e 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -6067,7 +6067,7 @@ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio,
goto out_release_all;
if (copy_user_large_folio(new_folio, old_folio, vmf->real_address, vma)) {
- ret = VM_FAULT_HWPOISON_LARGE;
+ ret = VM_FAULT_HWPOISON_LARGE | VM_FAULT_SET_HINDEX(hstate_index(h));
goto out_release_all;
}
__folio_mark_uptodate(new_folio);
--
2.44.0
