[PATCH 4.9 103/129] fuse: fix missing unlock_page in fuse_writepage()

From: Vasily Averin vvs@virtuozzo.com

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@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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- fs/fuse/file.c | 1 + 1 file changed, 1 insertion(+)

--- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1694,6 +1694,7 @@ 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; }