All of lore.kernel.org
 help / color / mirror / Atom feed
From: Tejun Heo <tj@kernel.org>
To: Zlatko Calusic <zlatko.calusic@iskon.hr>
Cc: linux-kernel@vger.kernel.org
Subject: Re: High context switch rate, ksoftirqd's chewing cpu
Date: Fri, 30 Nov 2012 14:55:45 -0800	[thread overview]
Message-ID: <20121130225545.GC6021@htj.dyndns.org> (raw)
In-Reply-To: <20121130225200.GB6021@htj.dyndns.org>

Hello, again.

Can you please try this patch?  Thanks!

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 042d221..26368ef 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1477,7 +1477,10 @@ bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq,
 	} while (unlikely(ret == -EAGAIN));
 
 	if (likely(ret >= 0)) {
-		__queue_delayed_work(cpu, wq, dwork, delay);
+		if (!delay)
+			__queue_work(cpu, wq, &dwork->work);
+		else
+			__queue_delayed_work(cpu, wq, dwork, delay);
 		local_irq_restore(flags);
 	}
 

  reply	other threads:[~2012-11-30 22:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-17 13:01 High context switch rate, ksoftirqd's chewing cpu Zlatko Calusic
2012-11-30 22:52 ` Tejun Heo
2012-11-30 22:55   ` Tejun Heo [this message]
2012-12-01 11:06     ` Zlatko Calusic
2012-12-01 14:38       ` Tejun Heo
2012-12-01 17:11         ` Zlatko Calusic
2012-12-01 19:13           ` Tejun Heo
2012-12-01 22:11             ` Zlatko Calusic
2012-11-30 23:11   ` Zlatko Calusic

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20121130225545.GC6021@htj.dyndns.org \
    --to=tj@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=zlatko.calusic@iskon.hr \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.