linux-kernel - Re: [PATCH v2 4/4] usb: hub: rename khubd to hub

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Message-ID: <20140918163147.GA13573@mtj.dyndns.org>
Date:	Thu, 18 Sep 2014 12:31:47 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Petr Mládek <pmladek@...e.cz>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Joe Lawrence <joe.lawrence@...atus.com>,
	Jiri Kosina <jkosina@...e.cz>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] usb: hub: rename khubd to hub_wq in documentation
 and comments

On Thu, Sep 18, 2014 at 06:15:02PM +0200, Petr Mládek wrote:
> The easiest solution would be to allocate the work queue with
> the flag WQ_UNBOUND and max_active = 1. It will force serialization
> of all work items.

Please use alloc_ordered_workqueue() for that purpose.  WQ_UNBOUND +
max_active == 1 no longer guarantees single thread of execution.

Thanks.

-- 
tejun
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