[RFC PATCH 07/21] pipe: Remove redundant wakeup from pipe_write()

From: David Howells
Date: Tue Oct 15 2019 - 17:48:58 EST


Remove a redundant wakeup from pipe_write().

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

fs/pipe.c | 5 -----
1 file changed, 5 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index 5a199b249191..289a887f6b5b 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -516,11 +516,6 @@ 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--;