From patchwork Wed Mar 7 23:21:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Wilck X-Patchwork-Id: 10265579 X-Patchwork-Delegate: christophe.varoqui@free.fr Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6586460211 for ; Wed, 7 Mar 2018 23:22:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5392028D57 for ; Wed, 7 Mar 2018 23:22:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4838F28D97; Wed, 7 Mar 2018 23:22:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CD5AB28D57 for ; Wed, 7 Mar 2018 23:22:44 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 28D5A81231; Wed, 7 Mar 2018 23:22:44 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 07BE97E21E; Wed, 7 Mar 2018 23:22:44 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 684CA181B9FD; Wed, 7 Mar 2018 23:22:43 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w27NMfh2006202 for ; Wed, 7 Mar 2018 18:22:41 -0500 Received: by smtp.corp.redhat.com (Postfix) id C16837C8DB; Wed, 7 Mar 2018 23:22:41 +0000 (UTC) Delivered-To: dm-devel@redhat.com Received: from mx1.redhat.com (ext-mx07.extmail.prod.ext.phx2.redhat.com [10.5.110.31]) by smtp.corp.redhat.com (Postfix) with ESMTPS id F19337C8C2; Wed, 7 Mar 2018 23:22:39 +0000 (UTC) Received: from smtp.nue.novell.com (smtp.nue.novell.com [195.135.221.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 10D09C036747; Wed, 7 Mar 2018 23:22:38 +0000 (UTC) Received: from emea4-mta.ukb.novell.com ([10.120.13.87]) by smtp.nue.novell.com with ESMTP (TLS encrypted); Thu, 08 Mar 2018 00:22:36 +0100 Received: from apollon.suse.de.de (nwb-a10-snat.microfocus.com [10.120.13.201]) by emea4-mta.ukb.novell.com with ESMTP (TLS encrypted); Wed, 07 Mar 2018 23:22:11 +0000 From: Martin Wilck To: Christophe Varoqui , Chongyun Wu Date: Thu, 8 Mar 2018 00:21:52 +0100 Message-Id: <20180307232152.15538-5-mwilck@suse.com> In-Reply-To: <20180307232152.15538-1-mwilck@suse.com> References: <20180307232152.15538-1-mwilck@suse.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 207 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 07 Mar 2018 23:22:38 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 07 Mar 2018 23:22:38 +0000 (UTC) for IP:'195.135.221.5' DOMAIN:'smtp.nue.novell.com' HELO:'smtp.nue.novell.com' FROM:'mwilck@suse.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 195.135.221.5 smtp.nue.novell.com 195.135.221.5 smtp.nue.novell.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.31 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-loop: dm-devel@redhat.com Cc: Martin Wilck , dm-devel@redhat.com Subject: [dm-devel] [PATCH RESEND 4/4] libmultipath: uev_update_path: update path properties X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 07 Mar 2018 23:22:44 +0000 (UTC) X-Virus-Scanned: ClamAV using ClamSMTP Update pp->udev and those path attributes that can be cheaply updated from sysfs, i.e. without IO to the disk. Signed-off-by: Martin Wilck --- multipathd/main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/multipathd/main.c b/multipathd/main.c index e9668205ce92..6e6c52a52783 100644 --- a/multipathd/main.c +++ b/multipathd/main.c @@ -964,6 +964,14 @@ uev_update_path (struct uevent *uev, struct vectors * vecs) strcpy(pp->wwid, wwid); else pp->wwid_changed = 0; + } else { + udev_device_unref(pp->udev); + pp->udev = udev_device_ref(uev->udev); + conf = get_multipath_config(); + if (pathinfo(pp, conf, DI_SYSFS|DI_NOIO) != PATHINFO_OK) + condlog(1, "%s: pathinfo failed after change uevent", + uev->kernel); + put_multipath_config(conf); } if (pp->initialized == INIT_REQUESTED_UDEV)