fuse: fix missing unlock_page in fuse_writepage()

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

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Fixes: ff17be086477 ("fuse: writepage: skip already in flight")
Cc: <stable@vger.kernel.org> # v3.13
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index a2ea347c4d2c760a9d6b3d2dbfc1896dbd538e0c..8c7578b95d2c759a51a3ec5b63f3039c56a44b4d 100644 (file)
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1861,6 +1861,7 @@ static int fuse_writepage(struct page *page, struct writeback_control *wbc)
                WARN_ON(wbc->sync_mode == WB_SYNC_ALL);
 
                redirty_page_for_writepage(wbc, page);
+               unlock_page(page);
                return 0;
        }