From: Oliver Neukum <oliver@neukum.org>
To: Mike Anderson <andmike@us.ibm.com>,
James Bottomley <James.Bottomley@steeleye.com>
Cc: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>,
mochel@osdl.org, SCSI Mailing List <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH] scsi_set_host_offline (resend)
Date: Sat, 29 Mar 2003 20:24:08 +0100 [thread overview]
Message-ID: <200303292024.08893.oliver@neukum.org> (raw)
In-Reply-To: <20030329190407.GA1483@beaverton.ibm.com>
Am Samstag, 29. März 2003 20:04 schrieb Mike Anderson:
> James Bottomley [James.Bottomley@steeleye.com] wrote:
> > On Fri, 2003-03-28 at 19:32, Matthew Dharm wrote:
> > > Well, Linus wants this to work for usb-storage more short-term than
> > > long-term....
> >
> > Well, I think Mike's given us everything you need. We can use the
> > set_device_offline to alter the remove-single-device path to offline the
> > device, wait for the returning I/Os to complete or error and then remove
> > the device.
> >
> > You can then trigger this from your hotplug scripts.
>
> I believe we still need to fixup scsi_remove_host to not fail (i.e
> return void) and call "hostt->release" when the ref count on the host
Yes, we cannot have a failure there.
> goes to zero. (I believe this was a point that started us on this thread
> of work as the usb implementation was one device per host).
Not necessarily. The USB driver cannot tell a simple device apart
from a SCSI<->USB bridge, which several SCSI devices can be
attached to. Hotplugging however is always on a host level with
USB storage.
Regards
Oliver
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next prev parent reply other threads:[~2003-03-29 19:24 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-25 10:07 [PATCH] scsi_set_host_offline (resend) Mike Anderson
2003-03-25 17:37 ` James Bottomley
2003-03-25 18:45 ` Mike Anderson
2003-03-25 19:02 ` James Bottomley
2003-03-25 21:04 ` Patrick Mochel
2003-03-25 23:29 ` Mike Anderson
2003-03-27 15:42 ` James Bottomley
2003-03-29 0:31 ` Patrick Mansfield
2003-03-29 1:32 ` Matthew Dharm
2003-03-29 6:30 ` Mike Anderson
2003-03-29 14:43 ` James Bottomley
2003-03-29 19:04 ` Mike Anderson
2003-03-29 19:24 ` Oliver Neukum [this message]
2003-03-29 20:53 ` Matthew Dharm
2003-03-29 21:54 ` James Bottomley
2003-03-29 22:15 ` Matthew Dharm
2003-03-30 16:23 ` James Bottomley
2003-03-30 17:26 ` Oliver Neukum
2003-04-09 20:30 ` Luben Tuikov
2003-04-09 22:32 ` Oliver Neukum
2003-04-09 22:59 ` Luben Tuikov
2003-04-10 7:51 ` Oliver Neukum
2003-04-17 22:29 ` Luben Tuikov
2003-03-30 18:21 ` Matthew Dharm
2003-04-09 20:53 ` Luben Tuikov
2003-03-29 22:50 ` Oliver Neukum
2003-04-01 2:48 ` Mike Anderson
2003-04-02 7:42 ` Matthew Dharm
2003-04-03 2:05 ` Mike Anderson
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