On 05/22/2015 09:06 AM, Nicholas A. Bellinger wrote: > From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> > > With se_port_t and t10_alua_tg_pt_gp_member being absored into se_lun, > there is no need for an extra atomic_t based reference count for PR > ALL_TG_PT=1 and ALUA access state transition. > > Go ahead and use the existing percpu se_lun->lun_ref instead, and > convert the two special cases to percpu_ref_tryget_live() to avoid > se_lun if transport_clear_lun_ref() has already been invoked to > shutdown the se_lun. > > Cc: Christoph Hellwig <hch@xxxxxx> > Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> > --- Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- 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
