Re: Questions about scsi_target_reap and starget/sdev lifecyle

[Christoph Hellwig <hch@infradead.org>]

On Tue, Jun 21, 2005 at 04:04:06PM -0400, Alan Stern wrote:
> This objection runs up against an issue we discussed some time ago.  
> Should the intended meaning of scsi_remove_host be simply that the kernel
> needs to stop using the HBA reasonably soon?  In that case you are right.  
> Or should the intended meaning be that the HBA is actually gone
> (hot-unplugged) and all further attempts to use it will fail?  In that
> case it doesn't matter.  The best ways to resolve this issue may be to
> have a separate scsi_host_gone routine or to add an extra argument to
> scsi_remove_host.

It must mean both because we don't know whether a hot unplug happened or
not.  The ->remove callbacks don't tell us.