diff mbox series

[2/2] mm/hugetlb: Add missing VM_FAULT_SET_HINDEX in hugetlb_wp

Message ID 20240509100148.22384-3-osalvador@suse.de (mailing list archive)
State New
Headers show
Series Minor fixups for hugetlb fault path | expand

Commit Message

Oscar Salvador May 9, 2024, 10:01 a.m. UTC 
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@suse.de>
---
 mm/hugetlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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);