From patchwork Thu Aug 27 12:41:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 7084311 Return-Path: X-Original-To: patchwork-linux-scsi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id DC7CA9F1C2 for ; Thu, 27 Aug 2015 12:46:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0E19C2062F for ; Thu, 27 Aug 2015 12:46:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1170A20626 for ; Thu, 27 Aug 2015 12:46:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754272AbbH0MqM (ORCPT ); Thu, 27 Aug 2015 08:46:12 -0400 Received: from mx2.suse.de ([195.135.220.15]:47997 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754088AbbH0Ml3 (ORCPT ); Thu, 27 Aug 2015 08:41:29 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id D23F4AE05; Thu, 27 Aug 2015 12:41:23 +0000 (UTC) From: Hannes Reinecke To: James Bottomley Cc: Christoph Hellwig , "Martin K. Petersen" , Bart van Assche , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 18/23] revert "scsi_dh_alua: ALUA hander attach should succeed while TPG is transitioning" Date: Thu, 27 Aug 2015 14:41:16 +0200 Message-Id: <1440679281-13234-19-git-send-email-hare@suse.de> X-Mailer: git-send-email 1.8.5.6 In-Reply-To: <1440679281-13234-1-git-send-email-hare@suse.de> References: <1440679281-13234-1-git-send-email-hare@suse.de> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This reverts commit a8e5a2d593cbfccf530c3382c2c328d2edaa7b66 Obsoleted by the next patch. Signed-off-by: Hannes Reinecke Reviewed-by: Ewan D. Milne --- drivers/scsi/device_handler/scsi_dh_alua.c | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index c2b2100b..b52db8b 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -418,13 +418,12 @@ static int alua_check_sense(struct scsi_device *sdev, /* * alua_rtpg - Evaluate REPORT TARGET GROUP STATES * @sdev: the device to be evaluated. - * @wait_for_transition: if nonzero, wait ALUA_FAILOVER_TIMEOUT seconds for device to exit transitioning state * * Evaluate the Target Port Group State. * Returns SCSI_DH_DEV_OFFLINED if the path is * found to be unusable. */ -static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg, int wait_for_transition) +static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg) { struct scsi_sense_hdr sense_hdr; int len, k, off, valid_states = 0, bufflen = ALUA_RTPG_SIZE; @@ -517,8 +516,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg, int w else pg->transition_tmo = ALUA_FAILOVER_TIMEOUT; - if (wait_for_transition && - (orig_transition_tmo != pg->transition_tmo)) { + if (orig_transition_tmo != pg->transition_tmo) { sdev_printk(KERN_INFO, sdev, "%s: transition timeout set to %d seconds\n", ALUA_DH_NAME, pg->transition_tmo); @@ -556,19 +554,14 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg, int w switch (pg->state) { case TPGS_STATE_TRANSITIONING: - if (wait_for_transition) { - if (time_before(jiffies, expiry)) { - /* State transition, retry */ - interval += 2000; - msleep(interval); - goto retry; - } - err = SCSI_DH_RETRY; - } else { - err = SCSI_DH_OK; + if (time_before(jiffies, expiry)) { + /* State transition, retry */ + interval += 2000; + msleep(interval); + goto retry; } - /* Transitioning time exceeded, set port to standby */ + err = SCSI_DH_RETRY; pg->state = TPGS_STATE_STANDBY; break; case TPGS_STATE_OFFLINE: @@ -665,7 +658,7 @@ static int alua_initialize(struct scsi_device *sdev, struct alua_dh_data *h) goto out; kref_get(&h->pg->kref); - err = alua_rtpg(sdev, h->pg, 0); + err = alua_rtpg(sdev, h->pg); kref_put(&h->pg->kref, release_port_group); out: return err; @@ -739,14 +732,14 @@ static int alua_activate(struct scsi_device *sdev, if (optimize_stpg) h->pg->flags |= ALUA_OPTIMIZE_STPG; - err = alua_rtpg(sdev, h->pg, 1); + err = alua_rtpg(sdev, h->pg); if (err != SCSI_DH_OK) { kref_put(&h->pg->kref, release_port_group); goto out; } err = alua_stpg(sdev, h->pg); if (err == SCSI_DH_RETRY) - err = alua_rtpg(sdev, h->pg, 1); + err = alua_rtpg(sdev, h->pg); kref_put(&h->pg->kref, release_port_group); out: if (fn)