From: Christoph Hellwig <hch@infradead.org>
To: Tim Wright <timw@splhi.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: rmmod st "hangs" - bad interaction with sg
Date: Sat, 10 Jul 2004 16:41:45 +0100 [thread overview]
Message-ID: <20040710154145.GA17691@infradead.org> (raw)
In-Reply-To: <1089473460.1473.17.camel@tp-timw.internal.splhi.com>
On Sat, Jul 10, 2004 at 08:31:00AM -0700, Tim Wright wrote:
> Hi,
> I was working on the qlogicisp/isp1020 driver in 2.6, as I still have
> one of these antiques and the driver is a bit out of date (a patch is
> forthcoming). In the process of testing my changes, I came across the
> following:
qlogicisp is slowly going away. If you look at the qla1280 driver in current
mainline you'll see it has most of the support for the 1020/1040 already,
I just need to fix a final bug and add firmware/pci ids. This has come up
on linux-scsi a few times..
> This seems bad to me - either the original rmmod should fail with EBUSY,
> or it should complete. However, for it to do so, it seems that st needs
> to know that sg has its hooks into the device it controls, and it needs
> to be able to make it let go. My workaround is impractical if sg is in
> use on other devices too.
I don't think we can fix much about this, it's how the driver model code
works. Best workarond is to not use sg.
next prev parent reply other threads:[~2004-07-10 15:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-10 15:31 rmmod st "hangs" - bad interaction with sg Tim Wright
2004-07-10 15:41 ` Christoph Hellwig [this message]
2004-07-10 16:03 ` Tim Wright
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