Re: [Patch] sg: fix device number in blktrace data

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Martin Peschke wrote:
Hi,

we have run into an issue with blktrace being started for sg devices.
Please apply.

Thanks,
Martin



From: Martin Peschke <mpeschke@xxxxxxxxxxxxxxxxxx>

The device number denoting a generic SCSI devices (sg) in a blktrace
trace is broken; major and minor are always 0. It looks like
sdp->device->sdev_gendev.devt is not initialized properly.
The fix below uses other data to make up a valid device number,
similar to the way an sg device number is generated for sysfs output.

Reported-by: Stefan Raspl <raspl@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Martin Peschke <mpeschke@xxxxxxxxxxxxxxxxxx>

Signed-off-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
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