return -EBUSY;
diff --git a/mm/rmap.c b/mm/rmap.c
index c6c4d4e..39d0439 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1203,6 +1203,11 @@ static __always_inline unsigned int __folio_add_rmap(struct folio *folio,
}
atomic_inc(&folio->_large_mapcount);
break;
+ case RMAP_LEVEL_PUD:
+ /* We only support entire mappings of PUD sized folios in rmap */
+ atomic_inc(&folio->_entire_mapcount);
+ atomic_inc(&folio->_large_mapcount);
+ break;
This way you don't account the pages at all as mapped, whereby PTE-mapping it
would? And IIRC, these PUD-sized pages can be either mapped using PTEs or
using a single PUD.
Oh good point. I was thinking that because we don't account PUD mappings today
that it would be fine to ignore them. But of course this series means we start
accounting them if mapped with PTEs so agree we should be consistent.
I suspect what you want is to
Yes, I think so. Thanks for the hint. I will be out over the Christmas break but
will do a respin to incorporate this before then.
I'll be on PTO starting ... well now. But I'll try to give the other
parts a quick peek if anything urgent jumps at me. (bad habit of reading
mails while on PTO ...)
In any case, happy holidays to you!
--
Cheers,
David / dhildenb
