linux-kernel - Re: [DRIVER SUBMISSION] DRBD wants to go mainline

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Message-ID: <20070723133704.GN11657@kernel.dk>
Date:	Mon, 23 Jul 2007 15:37:04 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Lars Ellenberg <lars.ellenberg@...bit.com>,
	Kyle Moffett <mrlinuxman@....com>,
	Andrew Morton <akpm@...l.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [DRIVER SUBMISSION] DRBD wants to go mainline

On Mon, Jul 23 2007, Lars Ellenberg wrote:
> > +/* THINK maybe we actually want to use the default "event/%s" worker threads
> > + * or similar in linux 2.6, which uses per cpu data and threads.
> > + *
> > + * To be general, this might need a spin_lock member.
> > + * For now, please use the mdev->req_lock to protect list_head,
> > + * see drbd_queue_work below.
> > + */
> > +struct drbd_work_queue {
> > +       struct list_head q;
> > +       struct semaphore s; /* producers up it, worker down()s it */
> > +       spinlock_t q_lock;  /* to protect the list. */
> > +};
> > 
> > Umm, how about fixing this to actually use proper workqueues or something
> > instead of this open-coded mess?
> 
> unlikely to happen "right now".
> but it is on our todo list...

But stuff like that is definitely a merge show stopper, jfyi.

-- 
Jens Axboe

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