Re: [patch]autosuspend for usb storage

On Wed, Apr 25, 2007 at 03:13:42PM -0400, Alan Stern wrote:
> On Wed, 25 Apr 2007, Oliver Neukum wrote:
> 
> > Hi,
> > 
> > this patch implements autosuspend for usb-storage.
> > The device may autosuspend except while
> > 1. a scsi request is being processed
> > 2. a bus is scanned for devices
> > 3. a scsi reset is in progress
> > 
> > 	Regards
> > 		Oliver
> > Signed-off-by: Oliver Neukum <[email protected]>
> 
> It's a little early to be adding this.  First I'd like to write a
> usb_autopm_get_interface_burst() routine, which would act like
> usb_autopm_get_interface() except that it would leave the autosuspend
> timer running.  The idea is that it would have less overhead in situations
> where you expect I/O to occur in bursts (like with usb-storage) by
> avoiding a bunch of calls to the timer core.
> 
> Also, Greg has about 20 patches from me still queued up, some of which 
> affect the USB autosuspend routines.  I'd like to see those applied before 
> other related changes are added.
> 
> Greg, any word on when those patches will go in?  Are you waiting for 
> 2.6.21-final to appear?

Partly, most of my delay has been some work related things, real life
related things (visiting kernel developer as a house guest), and my much
late OLS paper submission, which is a few weeks late already and what I
should be working on right now instead of writing this email...

So it's not anything in your patches at all, don't worry.

thanks,

greg k-h

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