From 7e25a73f1a52b58fc8206557e40d990cd791ad25 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Mon, 7 Oct 2019 15:10:06 +0100
Subject: [PATCH] pipe: Remove redundant wakeup from pipe_write()

Remove a redundant wakeup from pipe_write().

Signed-off-by: David Howells <dhowells@redhat.com>
---
 fs/pipe.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index ce77ac0d8901..d7b8d3f22987 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -517,11 +517,6 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 				ret = -ERESTARTSYS;
 			break;
 		}
-		if (do_wakeup) {
-			wake_up_interruptible_sync_poll(&pipe->wait, EPOLLIN | EPOLLRDNORM);
-			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
-			do_wakeup = 0;
-		}
 		pipe->waiting_writers++;
 		pipe_wait(pipe);
 		pipe->waiting_writers--;