From: Reto Baettig <baettig@k2.llnl.gov>
Message-Id: <200012080017.QAA00379@k2.llnl.gov>
Subject: io_request_lock question (2.2)
To: linux-kernel@vger.kernel.org
Date: Thu, 7 Dec 2000 16:17:30 -0800 (PST)
Reply-To: Reto Baettig <baettig@scs.ch>
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Sender: linux-kernel-owner@vger.kernel.org

Hi

I'm trying to write a block device driver which does some network stuff to satisfy the requests. The problem is, that the network stuff wants to grab the io_request_lock which does not work because this lock is already locked when I come into the request_fn of my device.

I looked at the implementation of the nbd which just calls 

	spin_unlock_irq(&io_request_lock);
	... do network io ...
	spin_lock_irq(&io_request_lock);

This seems to work but it looks very dangerous to me (and ugly, too). Isn't there a better way to do this?

Thanks very much

Reto 

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