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Date: Mon, 14 Apr 2003 03:23:39 -0700
From: Andrew Morton <akpm@digeo.com>
To: Jens Axboe <axboe@suse.de>
Cc: alan@lxorguk.ukuu.org.uk, marcelo@conectiva.com.br,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.4.21-pre7 ide request races
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Jens Axboe <axboe@suse.de> wrote:
>
> How would that solve the problem? The request could be gone even before
> end_that_request_last() is run, that is the issue.

In that case I didn't understand your description of the bug even the tiniest
little bit.

That request is sitting in the kernel stack of some process which is sleeping
in wait_for_completion().  Hence it is safe memory until someone runs
complete() against the completion struct.