linux-kernel - [PATCH 3/7] tty, workqueue: remove keventd

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Date:   Thu, 15 Sep 2016 15:30:17 -0400
From:   Tejun Heo <tj@...nel.org>
To:     torvalds@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, jiangshanlai@...il.com,
        akpm@...ux-foundation.org, kernel-team@...com,
        Tejun Heo <tj@...nel.org>, Jiri Slaby <jslaby@...e.cz>,
        Alan Cox <alan@...ux.intel.com>
Subject: [PATCH 3/7] tty, workqueue: remove keventd_up() usage

Now that workqueue can handle work item queueing from very early
during boot, there is no need to delay schedule_work() while
!keventd_up().  Remove it.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Jiri Slaby <jslaby@...e.cz>
Cc: Alan Cox <alan@...ux.intel.com>
---
Hello,

This change depends on an earlier workqueue patch and is followed by a
patch to remove keventd_up().  It'd be great if it can be routed
through the wq/for-4.9 branch.

Thanks.

 drivers/tty/vt/vt.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 2705ca9..f76ad4c 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3924,10 +3924,6 @@ void unblank_screen(void)
  */
 static void blank_screen_t(unsigned long dummy)
 {
-	if (unlikely(!keventd_up())) {
-		mod_timer(&console_timer, jiffies + (blankinterval * HZ));
-		return;
-	}
 	blank_timer_expired = 1;
 	schedule_work(&console_work);
 }
-- 
2.7.4