[PATCH v3 18/18] vboxsf: Tell the VFS that readpage was synchronous

["Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>]

The vboxsf inline data readpage implementation was already synchronous,
so use AOP_UPDATED_PAGE to avoid cycling the page lock.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/vboxsf/file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/vboxsf/file.c b/fs/vboxsf/file.c
index c4ab5996d97a..c2a144e5cb5a 100644
--- a/fs/vboxsf/file.c
+++ b/fs/vboxsf/file.c
@@ -228,6 +228,8 @@ static int vboxsf_readpage(struct file *file, struct page *page)
 	}
 
 	kunmap(page);
+	if (!err)
+		return AOP_UPDATED_PAGE;
 	unlock_page(page);
 	return err;
 }
-- 
2.28.0