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fbcon: queue work on power efficient wq

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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 <[email protected]>
Cc: [email protected]
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
This commit is contained in:
Viresh Kumar 2013-04-24 17:12:57 +05:30 • committed by Tejun Heo
commit a85f1a41f0
1 changed files with 1 additions and 1 deletions
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2
drivers/video/console/fbcon.c
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@ -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);
}