Re: Linux 2.6.16-rc3

[Stefan Richter]

Russell King wrote:
> On Wed, Feb 15, 2006 at 08:56:00PM -0500, James Bottomley wrote:
[...]
> > OK, this is what I'm proposing as the device model fix.  What it does is
> > thread context checking APIs throughout the device subsystem.  SCSI can
> > then use it simply via device_put_process_context().
[...]
> > Since this is planned for post 2.6.16, we have plenty of time to argue
> > about it.
>
> This is probably an idiotic question, but if there's something in the
> scsi release handler can't be called in non-process context, why can't
> scsi queue up the release processing via the work API itself, rather
> than having to have this additional code and complexity for everyone?

Moreover, why are SCSI release handlers called in non-process context in 
the first place? IMO the fix should be to make sure that SCSI release 
handlers are always called from process context --- by the respective 
layers which manage physical devices, i.e. one or more layers beneath 
SCSI core.
--
Stefan Richter
-=====-=-==- --=- =----
http://arcgraph.de/sr/
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