On Wednesday 02 July 2008, Oliver Neukum wrote:
> Am Dienstag 01 Juli 2008 14:52:33 schrieb Laurent Pinchart:
> > Hi Oliver,
> >
> > On Tuesday 01 July 2008, Oliver Neukum wrote:
> > > int uvc_status_resume(struct uvc_device *dev)
> > > {
> > > if (dev->int_urb == NULL)
> > > return 0;
> > >
> > > return usb_submit_urb(dev->int_urb, GFP_KERNEL);
> > > }
> > >
> > > Hi,
> > >
> > > if you are waking up from a system suspend, your swap device may still
> > > be asleep. Better use GFP_NOIO.
> >
> > Thanks for the report.
> >
> > I assume the same is true for the video resume path where I allocate and
> > submit the video data URBs. The amount of memory the driver allocates
> > there is higher, is there anything I should pay attention to to lower the
> > memory pressure introduced by GFP_NOIO ?
>
> How much memory is that?
For isochronous transfers (bulk transfers use smaller buffers), the driver
allocates five video buffers of at 240kB each.
Best regards,
Laurent Pinchart
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