https://bugzilla.kernel.org/show_bug.cgi?id=16122

--- Comment #8 from Larry Finger <Larry.Finger@lwfinger.net>  2010-06-05 14:54:58 ---

I'm willing to work on this, but don't know where to start.

Is there a simple explanation of when and where bdi_register() should be
called?

I put a test of the returned value of bdi_register_dev() in add_disk(), but
never got a non-zero result.

BTW, is this snippet in bdi_register() correct?

    if (bdi->dev)   /* The driver needs to use separate queues per device */
           goto exit;

This smells like an error, but returns zero.

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