diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 778b4056700ff5703e6c5c984c469c173dfcaa69..17254597accd4d47ecd3f301d13ef401d20fd3ac 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -269,6 +269,15 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes)
 	if (ret < 0)
 		goto error;
 
+	/*
+	 * pipe_resize_ring() does not update nr_accounted for watch_queue
+	 * pipes, because the above vastly overprovisions. Set nr_accounted on
+	 * and max_usage this pipe to the number that was actually charged to
+	 * the user above via account_pipe_buffers.
+	 */
+	pipe->max_usage = nr_pages;
+	pipe->nr_accounted = nr_pages;
+
 	ret = -ENOMEM;
 	pages = kcalloc(sizeof(struct page *), nr_pages, GFP_KERNEL);
 	if (!pages)