1 files changed, 9 insertions, 2 deletions

diff --git a/fs/pipe.c b/fs/pipe.c
index 7fefb10..5a36927 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -127,8 +127,15 @@ static void anon_pipe_buf_unmap(struct pipe_inode_info *pipe,
 static int anon_pipe_buf_steal(struct pipe_inode_info *pipe,
 			       struct pipe_buffer *buf)
 {
-	buf->flags |= PIPE_BUF_FLAG_STOLEN;
-	return 0;
+	struct page *page = buf->page;
+
+	if (page_count(page) == 1) {
+		buf->flags |= PIPE_BUF_FLAG_STOLEN;
+		lock_page(page);
+		return 0;
+	}
+
+	return 1;
 }
 
 static void anon_pipe_buf_get(struct pipe_inode_info *info,