From: Viresh Kumar Date: Wed, 24 Apr 2013 11:42:57 +0000 (+0530) Subject: fbcon: queue work on power efficient wq X-Git-Tag: v3.11-rc1~127^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a85f1a41f020bc2c97611060bcfae6f48a1db28d;p=platform%2Fupstream%2Fkernel-adaptation-pc.git fbcon: queue work on power efficient wq fbcon uses workqueues and it has no real dependency of scheduling these on the cpu which scheduled them. On a idle system, it is observed that and idle cpu wakes up many times just to service this work. It would be better if we can schedule it on a cpu which the scheduler believes to be the most appropriate one. This patch replaces system_wq with system_power_efficient_wq. Cc: Dave Airlie Cc: linux-fbdev@vger.kernel.org Signed-off-by: Viresh Kumar Signed-off-by: Tejun Heo --- diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index a92783e..0d8f98c 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -404,7 +404,7 @@ static void cursor_timer_handler(unsigned long dev_addr) struct fb_info *info = (struct fb_info *) dev_addr; struct fbcon_ops *ops = info->fbcon_par; - schedule_work(&info->queue); + queue_work(system_power_efficient_wq, &info->queue); mod_timer(&ops->cursor_timer, jiffies + HZ/5); }