[RFC PATCH 09/10] pipe: Remove redundant wakeup from pipe_write() [ver #2]
From: David Howells <dhowells@redhat.com>
Date: 2019-10-23 20:18:42
Also in:
keyrings, linux-api, linux-block, linux-fsdevel, linux-usb, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
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 1bfad2212b95..3df93990dd9d 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--;