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From: Lai Jiangshan <eag0628@gmail.com>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 09/11 V5] workqueue: rebind newly created worker
Date: Thu, 6 Sep 2012 00:19:52 +0800	[thread overview]
Message-ID: <CACvQF51LgTYaEweHxwzshRJxZmP9mpFuGgk1c3NNzYwwqqyPLg@mail.gmail.com> (raw)
In-Reply-To: <1346841475-4422-10-git-send-email-laijs@cn.fujitsu.com>

On Wed, Sep 5, 2012 at 6:37 PM, Lai Jiangshan <laijs@cn.fujitsu.com> wrote:
> when the newly created needs to be rebound. exile it!
> it will rebind itself in worker_thead().
>
> It just prepares, this code is useless until
> "we unbind/rebind without manager_mutex"
>
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
> ---
>  kernel/workqueue.c |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/kernel/workqueue.c b/kernel/workqueue.c
> index 223d128..819c84e 100644
> --- a/kernel/workqueue.c
> +++ b/kernel/workqueue.c
> @@ -1838,6 +1838,11 @@ static void manager_start_worker(struct worker *worker, struct worker *manager)
>
>         /* copy the flags. also unbind the worker if the manager is unbound */
>         worker->flags |= manager->flags & WORKER_COPY_FLAGS;
> +
> +       if (need_to_rebind_worker(worker)) {
> +               /* exile it, and let it rebind itself */
> +               list_del_init(&worker->entry);

Sorry, we should not add it to idle_list.
"add and then remove " is wrong here.

> +       }
>  }
>
>  /**
> --
> 1.7.4.4
>
> --
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  reply	other threads:[~2012-09-05 16:19 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-05 10:37 [PATCH 00/11 V5] workqueue: reimplement unbind/rebind Lai Jiangshan
2012-09-05 10:37 ` [PATCH 01/11 V5] workqueue: ensure the wq_worker_sleeping() see the right flags Lai Jiangshan
2012-09-05 10:37 ` [PATCH 02/11 V5] workqueue: async idle rebinding Lai Jiangshan
2012-09-05 18:06   ` Tejun Heo
2012-09-06  1:28     ` Lai Jiangshan
2012-09-05 10:37 ` [PATCH 03/11 V5] workqueue: new day don't need WORKER_REBIND for busy rebinding Lai Jiangshan
2012-09-05 18:31   ` Tejun Heo
2012-09-06  2:10     ` Lai Jiangshan
2012-09-05 10:37 ` [PATCH 04/11 V5] workqueue: remove WORKER_REBIND Lai Jiangshan
2012-09-05 10:37 ` [PATCH 05/11 V5] workqueue: Add @bind arguement back without change any thing Lai Jiangshan
2012-09-05 19:49   ` Tejun Heo
2012-09-06  1:04     ` Lai Jiangshan
2012-09-06 16:51       ` Tejun Heo
2012-09-07  2:11         ` Lai Jiangshan
2012-09-07 19:37           ` Tejun Heo
2012-09-05 10:37 ` [PATCH 06/11 V5] workqueue: unbind manager Lai Jiangshan
2012-09-05 10:37 ` [PATCH 07/11 V5] workqueue: rebind manager Lai Jiangshan
2012-09-05 10:37 ` [PATCH 08/11 V5] workqueue: unbind newly created worker Lai Jiangshan
2012-09-05 10:37 ` [PATCH 09/11 V5] workqueue: rebind " Lai Jiangshan
2012-09-05 16:19   ` Lai Jiangshan [this message]
2012-09-05 10:37 ` [PATCH 10/11 V5] workqueue: unbind/rebind without manager_mutex Lai Jiangshan
2012-09-05 20:04   ` Tejun Heo
2012-09-06 10:44     ` Lai Jiangshan
2012-09-06 17:00       ` Tejun Heo
2012-09-05 10:37 ` [PATCH 11/11 V5] workqueue: remove manager_mutex Lai Jiangshan

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