linux-kernel - Re: [RFC PATCH(Experimental) 2/4] Revert changes to workqueue.c

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Message-ID: <20070216235939.GB244@tv-sign.ru>
Date:	Sat, 17 Feb 2007 02:59:39 +0300
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Srivatsa Vaddagiri <vatsa@...ibm.com>
Cc:	Gautham R Shenoy <ego@...ibm.com>, akpm@...l.org,
	paulmck@...ibm.com, mingo@...e.hu, dipankar@...ibm.com,
	venkatesh.pallipadi@...el.com, linux-kernel@...r.kernel.org,
	rjw@...k.pl
Subject: Re: [RFC PATCH(Experimental) 2/4] Revert changes to workqueue.c

On 02/16, Srivatsa Vaddagiri wrote:
>
> Note with the change proposed in refrigerator, we can avoid
> CPU_DEAD_KILL_THREADS and do all cleanup in CPU_DEAD itself.

In that case (all processes are frozen when workqueue_cpu_callback()
calls cleanup_workqueue_thread()) I agree, it is better to just use
kthread_stop/kthread_should_stop.

This also means that probably it won't be convenient to do this change
"by small steps" as I suggested before.

Oleg.

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