On Tue, Jun 27, 2023 at 06:51:15AM -0700, Sumitra Sharma wrote: > +++ b/fs/vboxsf/file.c > @@ -234,7 +234,7 @@ static int vboxsf_read_folio(struct file *file, struct folio *folio) > u8 *buf; > int err; > > - buf = kmap(page); > + buf = kmap_local_folio(folio, off); Did you test this? 'off' is the offset in the _file_. Whereas kmap_local_folio() takes the offset within the _folio_. They have different types (loff_t vs size_t) to warn you that they're different things.
