From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964929Ab2HGWgp (ORCPT ); Tue, 7 Aug 2012 18:36:45 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:56801 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964853Ab2HGWgi (ORCPT ); Tue, 7 Aug 2012 18:36:38 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg KH , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Dan Williams , James Bottomley Subject: [ 009/109] SCSI: libsas: continue revalidation Date: Tue, 7 Aug 2012 15:34:28 -0700 Message-Id: <20120807222043.890619451@linuxfoundation.org> X-Mailer: git-send-email 1.7.10.1.362.g242cab3 In-Reply-To: <20120807222043.089735600@linuxfoundation.org> References: <20120807222043.089735600@linuxfoundation.org> User-Agent: quilt/0.60-20.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg KH 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Williams commit 26f2f199ff150d8876b2641c41e60d1c92d2fb81 upstream. Continue running revalidation until no more broadcast devices are discovered. Fixes cases where re-discovery completes too early in a domain with multiple expanders with pending re-discovery events. Servicing BCNs can get backed up behind error recovery. Signed-off-by: Dan Williams Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/libsas/sas_expander.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -2109,9 +2109,7 @@ int sas_ex_revalidate_domain(struct doma struct domain_device *dev = NULL; res = sas_find_bcast_dev(port_dev, &dev); - if (res) - goto out; - if (dev) { + while (res == 0 && dev) { struct expander_device *ex = &dev->ex_dev; int i = 0, phy_id; @@ -2123,8 +2121,10 @@ int sas_ex_revalidate_domain(struct doma res = sas_rediscover(dev, phy_id); i = phy_id + 1; } while (i < ex->num_phys); + + dev = NULL; + res = sas_find_bcast_dev(port_dev, &dev); } -out: return res; }