linux-kernel - Re: [PATCH 2/3] make cancel_xxx_work

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Message-ID: <20070703053744.GB1657@ff.dom.local>
Date:	Tue, 3 Jul 2007 07:37:44 +0200
From:	Jarek Poplawski <jarkao2@...pl>
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Howells <dhowells@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	Tejun Heo <htejun@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] make cancel_xxx_work_sync() return a boolean

On Sun, Jul 01, 2007 at 07:37:10PM +0400, Oleg Nesterov wrote:
> Change cancel_work_sync() and cancel_delayed_work_sync() to return a boolean
> indicating whether the work was actually cancelled. A zero return value means
> that the work was not pending/queued.
> 
> Without that kind of change it is not possible to avoid flush_workqueue()
> sometimes, see the next patch as an example.
> 
> Also, this patch unifies both functions and kills the (unlikely) busy-wait loop.
> 
> Signed-off-by: Oleg Nesterov <oleg@...sign.ru>

Acked-by: Jarek Poplawski <jarkao2@...pl>

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