[SCSI] scsi_dh: add scsi_dh_attached_handler_name
Introduce scsi_dh_attached_handler_name() to retrieve the name of the scsi_dh that is attached to the scsi_device associated with the provided request queue. Returns NULL if a scsi_dh is not attached. Also, fix scsi_dh_{attach,detach} function header comments to document @q rather than @sdev. Signed-off-by:Mike Snitzer <snitzer@redhat.com> Tested-by:
Babu Moger <babu.moger@netapp.com> Reviewed-by:
Chandra Seetharaman <sekharan@us.ibm.com> Acked-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
parent
6aca4112
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