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From: Rusty Russell <rusty@rustcorp.com.au>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] virtio_blk: allow re-reading config space at runtime
Date: Wed, 19 Jan 2011 09:56:09 +1030	[thread overview]
Message-ID: <201101190956.10137.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20110118122751.GA27997@lst.de>

On Tue, 18 Jan 2011 10:57:51 pm Christoph Hellwig wrote:
> On Tue, Jan 18, 2011 at 11:38:50AM +1030, Rusty Russell wrote:
> > I think we need to do better than this.  What would it take?
> 
> I don't think we have much choice.  We're getting called from irq
> context, so we'll need to allocate memory to offload things.  That's
> unless we keep a thread around that we just need to wake up, which
> would be a huge waste of ressources.

Yes, but can we keep a workqueue struct around?

Rusty.

  reply	other threads:[~2011-01-18 23:26 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-14 16:01 [PATCH] virtio_blk: allow re-reading config space at runtime Christoph Hellwig
2011-01-18  1:08 ` Rusty Russell
2011-01-18 12:27   ` Christoph Hellwig
2011-01-18 23:26     ` Rusty Russell [this message]
2011-01-18 23:54       ` Christoph Hellwig
2011-01-27 15:29         ` Michael S. Tsirkin
2011-02-01 17:32           ` Christoph Hellwig
2011-02-01 18:38             ` Michael S. Tsirkin
2011-02-01 19:21               ` Christoph Hellwig
2011-02-01 19:51                 ` Michael S. Tsirkin
2011-02-01 20:43                   ` [PATCH v3] " Christoph Hellwig
2011-02-04  2:39                     ` Rusty Russell
2011-01-27 15:32 ` [PATCH] " Michael S. Tsirkin
2011-02-01 17:33   ` Christoph Hellwig

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