On Tue, May 08 2012 at 2:22am -0400, Hannes Reinecke <hare@xxxxxxx> wrote: > On 05/08/2012 05:19 AM, Mike Snitzer wrote: > > Use the previously attached scsi_dh if "default" is provided as the > > hardware handler name (the new 'use_default_hw_handler' flag is set in > > the multipath structure). > > > > Leverage scsi_dh_attach's ability to increment the scsi_dh's reference > > count if the same scsi_dh name is provided when attaching -- currently > > attached scsi_dh name is determined with scsi_dh_attached_handler_name. > > > Not sure it that's the correct way. > > Using 'default' as the hardware handler name has the drawback that > the original information (ie the original hardware handler name) > is lost. BTW, on this point: How is the original handler's name lost with my patches? I set m->hw_handler_name to the original (aka attached) handler's name (as returned scsi_dh_attached_handler_name). "default" is only used as a key to trigger the use of the attached handler (it causes m->use_default_hw_handler to be set). Was my description or code somehow unclear? Guess so... otherwise I'd not be clarifying this... unfortunately I'm not seeing where I fell short. Mike -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
