[PATCH 3.16 45/72] fuse: fix missing unlock_page in fuse_writepage()

[Ben Hutchings]

3.16.79-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Vasily Averin <vvs@xxxxxxxxxxxxx>

commit d5880c7a8620290a6c90ced7a0e8bd0ad9419601 upstream.

unlock_page() was missing in case of an already in-flight write against the
same page.

Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
Fixes: ff17be086477 ("fuse: writepage: skip already in flight")
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 fs/fuse/file.c | 1 +
 1 file changed, 1 insertion(+)

--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1767,6 +1767,7 @@ static int fuse_writepage(struct page *p
 		WARN_ON(wbc->sync_mode == WB_SYNC_ALL);
 
 		redirty_page_for_writepage(wbc, page);
+		unlock_page(page);
 		return 0;
 	}