[PATCH 13/13] vboxsf: Tell the VFS that readpage was synchronous

Matthew Wilcox (Oracle)
2020-09-17T15:12:48Z

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@infradead.org>
---
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;
}