On Fri, 18 Jan 2008, Oliver Neukum wrote:
> Am Dienstag, 15. Januar 2008 16:30:34 schrieb Alan Stern:
> > On Tue, 15 Jan 2008, Oliver Neukum wrote:
> >
> > > Hi Alan,
> > >
> > > here's a simple implementation to handle ioctl() by blocking
> > > autosuspend until the device is closed again.
> >
Am Dienstag, 15. Januar 2008 16:30:34 schrieb Alan Stern:
> On Tue, 15 Jan 2008, Oliver Neukum wrote:
>
> > Hi Alan,
> >
> > here's a simple implementation to handle ioctl() by blocking
> > autosuspend until the device is closed again.
> >
> > It is relative to your patch set.
>
> A few comment
On Wed, 16 Jan 2008, Oliver Neukum wrote:
> > The only scenario where this would matter is when there are two
> > overlapping open calls, of which one uses ioctls and the other does
> > doesn't. I can't think of any examples, except perhaps where somebody
> > does an ioctl on a mounted device
Am Mittwoch, 16. Januar 2008 16:58:51 schrieb Alan Stern:
> On Wed, 16 Jan 2008, Oliver Neukum wrote:
>
> > > This entire issue needs more thought. There must be plenty of ioctl
> > > calls which shouldn't force a device to remain resumed.
> >
> > Sure. The question is whether it is worth a lot
On Wed, 16 Jan 2008, Oliver Neukum wrote:
> > This entire issue needs more thought. There must be plenty of ioctl
> > calls which shouldn't force a device to remain resumed.
>
> Sure. The question is whether it is worth a lot of effort to filter them.
> Are ioctl()s on block devices common?
I
Am Mittwoch, 16. Januar 2008 16:26:03 schrieb Alan Stern:
> On Tue, 15 Jan 2008, Oliver Neukum wrote:
>
> > > > > Do all ioctls filter through this routine? It looks like requests
> > > > > coming through block/scsi_ioctl.c will bypass this code. Have you
> > > > > decided to ignore those requ
On Tue, 15 Jan 2008, Oliver Neukum wrote:
> > > > Do all ioctls filter through this routine? It looks like requests
> > > > coming through block/scsi_ioctl.c will bypass this code. Have you
> > > > decided to ignore those requests for now?
> > >
> > > I found no way to deal with them without
Am Dienstag, 15. Januar 2008 17:19:02 schrieb Alan Stern:
> On Tue, 15 Jan 2008, Oliver Neukum wrote:
>
> > > > --- linux-as/drivers/scsi/sd.c 2008-01-15 14:17:05.0 +0100
> > > > +++ linux-2.6.24-scsi-pm/drivers/scsi/sd.c 2008-01-15
> > > > 14:20:13.0 +0100
> > > > @@ -711,6
On Tue, 15 Jan 2008, Oliver Neukum wrote:
> > > --- linux-as/drivers/scsi/sd.c2008-01-15 14:17:05.0 +0100
> > > +++ linux-2.6.24-scsi-pm/drivers/scsi/sd.c2008-01-15
> > > 14:20:13.0 +0100
> > > @@ -711,6 +718,19 @@ static int sd_ioctl(struct inode * inode
> > >
Am Dienstag, 15. Januar 2008 16:30:34 schrieb Alan Stern:
> On Tue, 15 Jan 2008, Oliver Neukum wrote:
>
> > Hi Alan,
> >
> > here's a simple implementation to handle ioctl() by blocking
> > autosuspend until the device is closed again.
> >
> > It is relative to your patch set.
>
> A few comment
On Tue, 15 Jan 2008, Oliver Neukum wrote:
> Hi Alan,
>
> here's a simple implementation to handle ioctl() by blocking
> autosuspend until the device is closed again.
>
> It is relative to your patch set.
A few comments are below.
> --- linux-as/drivers/scsi/sd.c2008-01-15 14:17:05.
Hi Alan,
here's a simple implementation to handle ioctl() by blocking
autosuspend until the device is closed again.
It is relative to your patch set.
Signed-off-by: Oliver Neukum <[EMAIL PROTECTED]>
--- linux-as/drivers/scsi/sd.c 2008-01-15 14:17:05.0 +0100
+++ linux-2.6.24-scsi-
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