From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Reinecke Subject: Re: [PATCH 3/4] target: Drop se_lun->lun_active for existing percpu lun_ref Date: Fri, 22 May 2015 09:58:58 +0200 Message-ID: <555EE1C2.6060601@suse.de> References: <1432278417-29994-1-git-send-email-nab@daterainc.com> <1432278417-29994-4-git-send-email-nab@daterainc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from cantor2.suse.de ([195.135.220.15]:45890 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754712AbbEVH67 (ORCPT ); Fri, 22 May 2015 03:58:59 -0400 In-Reply-To: <1432278417-29994-4-git-send-email-nab@daterainc.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Nicholas A. Bellinger" , target-devel Cc: linux-scsi , linux-kernel , Christoph Hellwig , Nicholas Bellinger On 05/22/2015 09:06 AM, Nicholas A. Bellinger wrote: > From: Nicholas Bellinger >=20 > 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=3D1 and ALUA access state transition. >=20 > 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. >=20 > Cc: Christoph Hellwig > Signed-off-by: Nicholas Bellinger > --- Reviewed-by: Hannes Reinecke Cheers, Hannes --=20 Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N=FCrnberg GF: F. Imend=F6rffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG N=FCrnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html